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Zhu T, Ruan H, Wang T, Guo Y, Liu Y. An HFD negatively influences both joint and liver health in rabbits with and without an enzymatically-induced model of arthritis. Vet J 2024; 306:106197. [PMID: 38996961 DOI: 10.1016/j.tvjl.2024.106197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 07/06/2024] [Accepted: 07/07/2024] [Indexed: 07/14/2024]
Abstract
Osteoarthritis (OA) is a common arthritis types in animals that causes persistent pain and reduces quality of life. Although a high-fat diet (HFD) is widely believed to induce obesity and have adverse effects on the body, the connection between HFD and joint health is not well understood. Therefore, in this study, 32 healthy male New Zealand rabbits were randomly divided into four groups: healthy rabbits fed a standard diet (NDG, n=8) or an HFD (HDG, n=8), rabbits fed a standard diet (OAG, n=8) and an HFD (HOG, n=8), and arthritis was induced by intra-articular enzyme injection. After 12 weeks of HFD feeding, articular cartilage, synovium, and subchondral bone were isolated and collected. Joint tissue damage was evaluated using histopathological and imaging tests. The results showed that there was no significant difference in body weight between rabbits fed a normal diet and those fed an HFD. However, the HFD led to an increase in joint injuries in both induced and non-induced arthritis rabbits. Specifically, the HFD induced lipid metabolism disorders and liver damage in vivo, significantly elevating the levels of serum inflammatory cytokines and bone metabolism markers. Moreover, HFD exacerbated articular cartilage damage in the joints and increased the accumulation of inflammatory cells in synovial tissue, resulting in a notable increase in synovial macrophages and inflammatory cytokines. Additionally, HFD accelerated the bone resorption process in subchondral bone, leading to the destruction of bone mass and subchondral bone microstructure. In summary, the results of this study indicate that an HFD can cause histological damage to the articular cartilage, synovium, and subchondral bone in rabbits, exacerbating arthritis in pre-existing joint damage. Notably, weight is not the primary factor in this effect.
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Affiliation(s)
- Tingting Zhu
- Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Hongri Ruan
- Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Tiantian Wang
- Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yingchao Guo
- Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yun Liu
- Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, Department of Veterinary Surgery, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
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Mocanu V, Timofte DV, Zară-Dănceanu CM, Labusca L. Obesity, Metabolic Syndrome, and Osteoarthritis Require Integrative Understanding and Management. Biomedicines 2024; 12:1262. [PMID: 38927469 PMCID: PMC11201254 DOI: 10.3390/biomedicines12061262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Osteoarthritis (OA) is a progressive chronic disease affecting the articular joints, leading to pain and disability. Unlike traditional views that primarily link OA to aging, recent understanding portrays it as a multifactorial degenerative disease of the entire joint. Emerging research highlights metabolic and immune dysregulation in OA pathogenesis, emphasizing the roles of obesity, dyslipidemia, and insulin resistance in altering joint homeostasis. Recent studies have increasingly focused on the complex role of white adipose tissue (WAT) in OA. WAT not only serves metabolic functions but also plays a critical role in systemic inflammation through the release of various adipokines. These adipokines, including leptin and adiponectin, have been implicated in exacerbating cartilage erosion and promoting inflammatory pathways within joint tissues. The overlapping global crises of obesity and metabolic syndrome have significantly impacted joint health. Obesity, now understood to contribute to mechanical joint overload and metabolic dysregulation, heightens the risk of developing OA, particularly in the knee. Metabolic syndrome compounds these risks by inducing chronic inflammation and altering macrophage activity within the joints. The multifaceted effects of obesity and metabolic syndrome extend beyond simple joint loading. These conditions disrupt normal joint function by modifying tissue composition, promoting inflammatory macrophage polarization, and impairing chondrocyte metabolism. These changes contribute to OA progression, highlighting the need for targeted therapeutic strategies that address both the mechanical and biochemical aspects of the disease. Recent advances in understanding the molecular pathways involved in OA suggest potential therapeutic targets. Interventions that modulate macrophage polarization, improve chondrocyte function, or normalize adipokine levels could serve as preventative or disease-modifying therapies. Exploring the role of diet, exercise, and pharmacological interventions in modulating these pathways offers promising avenues for reducing the burden of OA. Furthermore, such methods could prove cost-effective, avoiding the increase in access to healthcare.
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Affiliation(s)
- Veronica Mocanu
- Center for Obesity BioBehavioral Experimental Research, Department of Morpho-Functional Sciences II (Pathophysiology), “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Daniel Vasile Timofte
- Department of Surgery, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Camelia-Mihaela Zară-Dănceanu
- National Institute of Research and Development in Technical Physics Iasi, 700050 Iasi, Romania; (C.-M.Z.-D.); (L.L.)
| | - Luminita Labusca
- National Institute of Research and Development in Technical Physics Iasi, 700050 Iasi, Romania; (C.-M.Z.-D.); (L.L.)
- Department of Orthopedics, “Sf. Spiridon” Emergency Clinical Hospital, 700111 Iasi, Romania
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Cocea AC, Stoica CI. Interactions and Trends of Interleukins, PAI-1, CRP, and TNF-α in Inflammatory Responses during the Perioperative Period of Joint Arthroplasty: Implications for Pain Management-A Narrative Review. J Pers Med 2024; 14:537. [PMID: 38793119 PMCID: PMC11122505 DOI: 10.3390/jpm14050537] [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: 04/16/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
Inflammation during the perioperative period of joint arthroplasty is a critical aspect of patient outcomes, influencing both the pathophysiology of pain and the healing process. This narrative review comprehensively evaluates the roles of specific cytokines and inflammatory biomarkers in this context and their implications for pain management. Inflammatory responses are initiated and propagated by cytokines, which are pivotal in the development of both acute and chronic postoperative pain. Pro-inflammatory cytokines play essential roles in up-regulating the inflammatory response, which, if not adequately controlled, leads to sustained pain and impaired tissue healing. Anti-inflammatory cytokines work to dampen inflammatory responses and promote resolution. Our discussion extends to the genetic and molecular influences on cytokine production, which influence pain perception and recovery rates post-surgery. Furthermore, the role of PAI-1 in modulating inflammation through its impact on the fibrinolytic system highlights its potential as a therapeutic target. The perioperative modulation of these cytokines through various analgesic and anesthetic techniques, including the fascia iliac compartment block, demonstrates a significant reduction in pain and inflammatory markers, thus underscoring the importance of targeted therapeutic strategies. Our analysis suggests that a nuanced understanding of the interplay between pro-inflammatory and anti-inflammatory cytokines is required. Future research should focus on individualized pain management strategies.
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Affiliation(s)
- Arabela-Codruta Cocea
- Faculty of Medicine, Doctoral School, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Cristian Ioan Stoica
- Orthopedics, Anaesthesia Intensive Care Unit, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 050474 Bucharest, Romania;
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Zhang S, Wang D, Zhao J, Zhao H, Xie P, Zheng L, Sheng P, Yuan J, Xia B, Wei F, Zhang Z. Metabolic syndrome increases osteoarthritis risk: findings from the UK Biobank prospective cohort study. BMC Public Health 2024; 24:233. [PMID: 38243159 PMCID: PMC10799367 DOI: 10.1186/s12889-024-17682-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/05/2024] [Indexed: 01/21/2024] Open
Abstract
OBJECTIVE The association between Metabolic Syndrome (MetS), its components, and the risk of osteoarthritis (OA) has been a topic of conflicting evidence in different studies. The aim of this present study is to investigate the association between MetS, its components, and the risk of OA using data from the UK Biobank. METHODS A prospective cohort study was conducted in the UK Biobank to assess the risk of osteoarthritis (OA) related to MetS. MetS was defined according to the criteria set by the International Diabetes Federation (IDF). Additionally, lifestyle factors, medications, and the inflammatory marker C-reactive protein (CRP) were included in the model. Cox proportional hazards regression was used to calculate hazard ratios (HR) and 95% confidence intervals (CI). The cumulative risk of OA was analyzed using Kaplan-Meier curves and log-rank tests. To explore potential nonlinear associations between MetS components and OA risk, a restricted cubic splines (RCS) model was employed. In addition, the polygenic risk score (PRS) of OA was calculated to characterize individual genetic risk. RESULTS A total of 45,581 cases of OA were identified among 370,311 participants, with a median follow-up time of 12.48 years. The study found that individuals with MetS had a 15% higher risk of developing OA (HR = 1.15, 95%CI:1.12-1.19). Additionally, central obesity was associated with a 58% increased risk of OA (HR = 1.58, 95%CI:1.5-1.66), while hyperglycemia was linked to a 13% higher risk (HR = 1.13, 95%CI:1.1-1.15). Dyslipidemia, specifically in triglycerides (HR = 1.07, 95%CI:1.05-1.09) and high-density lipoprotein (HR = 1.05, 95%CI:1.02-1.07), was also found to be slightly associated with OA risk. When stratified by PRS, those in the high PRS group had a significantly higher risk of OA compared to those with a low PRS, whereas no interaction was found between MetS and PRS on OA risks. Furthermore, the presence of MetS significantly increased the risk of OA by up to 35% in individuals with elevated CRP levels (HR = 1.35, 95% CI:1.3-1.4). CONCLUSION MetS and its components have been found to be associated with an increased risk of OA, particularly in individuals with elevated levels of CRP. These findings highlight the significance of managing MetS as a preventive and intervention measure for OA.
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Affiliation(s)
- Shiyong Zhang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Danni Wang
- Department of Epidemiology and Biostatistics, Clinical Big Data Research Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518000, Guangdong, China
- Chinese Health RIsk MAnagement Collaboration (CHRIMAC), Shenzhen, 518000, Guangdong, China
| | - Jinyu Zhao
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Haitong Zhao
- Evidence Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Peng Xie
- Digestive Diseases Center, The Seventh Affiliated Hospital,, Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
- Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, China
| | - Linli Zheng
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Puyi Sheng
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China
| | - Jinqiu Yuan
- Department of Epidemiology and Biostatistics, Clinical Big Data Research Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518000, Guangdong, China
- Chinese Health RIsk MAnagement Collaboration (CHRIMAC), Shenzhen, 518000, Guangdong, China
- Guangdong Provincial Key Laboratory of Gastroenterology, Center for Digestive Disease, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518000, Guangdong, China
| | - Bin Xia
- Department of Epidemiology and Biostatistics, Clinical Big Data Research Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518000, Guangdong, China.
- Chinese Health RIsk MAnagement Collaboration (CHRIMAC), Shenzhen, 518000, Guangdong, China.
| | - Fuxin Wei
- Department of Orthopedics, the Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, 518000, Guangdong, China.
| | - Ziji Zhang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, China.
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Shin H, Prasad V, Lupancu T, Malik S, Achuthan A, Biondo M, Kingwell BA, Thiem M, Gottschalk M, Weighardt H, Förster I, de Steiger R, Hamilton JA, Lee KMC. The GM-CSF/CCL17 pathway in obesity-associated osteoarthritic pain and disease in mice. Osteoarthritis Cartilage 2023; 31:1327-1341. [PMID: 37225052 DOI: 10.1016/j.joca.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 05/08/2023] [Accepted: 05/18/2023] [Indexed: 05/26/2023]
Abstract
OBJECTIVES We have previously identified a granulocyte macrophage-colony stimulating factor (GM-CSF)/C-C motif ligand 17 (CCL17) pathway in monocytes/macrophages, in which GM-CSF regulates the formation of CCL17, and it is important for an experimental osteoarthritis (OA) model. We explore here additional OA models, including in the presence of obesity, such as a requirement for this pathway. DESIGN The roles of GM-CSF, CCL17, CCR4, and CCL22 in various experimental OA models, including those incorporating obesity (eight-week high-fat diet), were investigated using gene-deficient male mice. Pain-like behavior and arthritis were assessed by relative static weight distribution and histology, respectively. Cell populations (flow cytometry) and cytokine messenger RNA (mRNA) expression (qPCR) in knee infrapatellar fat pad were analyzed. Human OA sera were collected for circulating CCL17 levels (ELISA) and OA knee synovial tissue for gene expression (qPCR). RESULTS We present evidence that: i) GM-CSF, CCL17, and CCR4, but not CCL22, are required for the development of pain-like behavior and optimal disease in three experimental OA models, as well as for exacerbated OA development due to obesity, ii) obesity alone leads to spontaneous knee joint damage in a GM-CSF- and CCL17-dependent manner, and iii) in knee OA patients, early indications are that BMI correlates with a lower Oxford Knee Score (r = -0.458 and p = 0.0096), with elevated circulating CCL17 levels (r = 0.2108 and p = 0.0153) and with elevated GM-CSF and CCL17 gene expression in OA synovial tissue. CONCLUSIONS The above findings indicate that GM-CSF, CCL17, and CCR4 are involved in obesity-associated OA development, broadening their potential as targets for possible treatments for OA.
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Affiliation(s)
- Heonsu Shin
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Varun Prasad
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Tanya Lupancu
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Shveta Malik
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Adrian Achuthan
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Mark Biondo
- CSL Ltd, Bio21 Institute, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Bronwyn A Kingwell
- CSL Ltd, Bio21 Institute, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Manja Thiem
- Immunology and Environment, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Marlene Gottschalk
- Immunology and Environment, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Heike Weighardt
- Immunology and Environment, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Irmgard Förster
- Immunology and Environment, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Richard de Steiger
- Department of Surgery, Epworth Healthcare, University of Melbourne, Richmond, Victoria 3121, Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - John A Hamilton
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050 Australia; Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, St. Albans, Victoria 3021, Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia
| | - Kevin M-C Lee
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050 Australia; Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria 3000, Australia.
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Medina JP, Bermejo-Álvarez I, Pérez-Baos S, Yáñez R, Fernández-García M, García-Olmo D, Mediero A, Herrero-Beaumont G, Largo R. MSC therapy ameliorates experimental gouty arthritis hinting an early COX-2 induction. Front Immunol 2023; 14:1193179. [PMID: 37533852 PMCID: PMC10391650 DOI: 10.3389/fimmu.2023.1193179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023] Open
Abstract
Objective The specific effect of Adipose-Derived Mesenchymal Stem Cells (Ad-MSC) on acute joint inflammation, where the response mostly depends on innate immunity activation, remains elusive. The pathogenesis of gouty arthritis, characterized by the deposition of monosodium urate (MSU) crystals in the joints, associated to acute flares, has been associated to NLRP3 inflammasome activation and subsequent amplification of the inflammatory response. Our aim was to study the effect of human Ad-MSC administration in the clinical inflammatory response of rabbits after MSU injection, and the molecular mechanisms involved. Methods Ad-MSC were administered by intraarterial route shortly after intraarticular MSU crystal injections. Joint and systemic inflammation was sequentially studied, and the mechanisms involved in NLRP3 inflammasome activation, and the synthesis of inflammatory mediators were assessed in the synovial membranes 72h after insult. Ad-MSC and THP-1-derived macrophages stimulated with MSU were co-cultured in transwell system. Results A single systemic dose of Ad-MSC accelerated the resolution of local and systemic inflammatory response. In the synovial membrane, Ad-MSC promoted alternatively M2 macrophage presence, inhibiting NLRP3 inflammasome and inducing the production of anti-inflammatory cytokines, such as IL-10 or TGF-β, and decreasing nuclear factor-κB activity. Ad-MSC induced a net anti-inflammatory balance in MSU-stimulated THP-1 cells, with a higher increase in IL-10 and IDO expression than that observed for IL-1β and TNF. Conclusion Our in vivo and in vitro results showed that a single systemic dose of Ad-MSC decrease the intensity and duration of the inflammatory response by an early local COX-2 upregulation and PGE2 release. Ad-MSCs suppressed NF-kB activity, NLRP3 inflammasome, and promoted the presence of M2 alternative macrophages in the synovium. Therefore, this therapeutic approach could be considered as a pharmacological alternative in patients with comorbidities that preclude conventional treatment.
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Affiliation(s)
- Juan Pablo Medina
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Ismael Bermejo-Álvarez
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Sandra Pérez-Baos
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Rosa Yáñez
- Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER), Madrid, Spain
- Advanced Therapies Dept, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - María Fernández-García
- Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER), Madrid, Spain
- Advanced Therapies Dept, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Damián García-Olmo
- New Therapies Laboratory, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
- Department of Surgery, Fundación Jiménez Díaz University Hospital, Madrid, Spain
- Department of Surgery, School of Medicine UAM, Madrid, Spain
| | - Aránzazu Mediero
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Raquel Largo
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
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Warmink K, Rios JL, van Valkengoed DR, Vinod P, Korthagen NM, Weinans H. Effects of different obesogenic diets on joint integrity, inflammation and intermediate monocyte levels in a rat groove model of osteoarthritis. Front Physiol 2023; 14:1211972. [PMID: 37520829 PMCID: PMC10372350 DOI: 10.3389/fphys.2023.1211972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction: Obesogenic diets aggravate osteoarthritis (OA) by inducing low-grade systemic inflammation, and diet composition may affect OA severity. Here, we investigated the effect of diet on joint damage and inflammation in an OA rat model. Methods: Wistar-Han rats (n = 24) were fed a chow, a high-fat (HF) diet, or a high-fat/high-sucrose (HFS) for 24 weeks. OA was induced unilaterally 12 weeks after the diet onset by groove surgery, and compared to sham surgery or no surgical intervention (contralateral limb). Knee OA severity was determined by OARSI histopathology scoring system. At several timepoints monocyte populations were measured using flow cytometry, and joint macrophage response was determined via CD68 immunohistochemistry staining. Results: Groove surgery combined with HF or HFS diet resulted in higher OARSI scores, and both HF and HFS diet showed increased circulating intermediate monocytes compared to chow fed rats. Additionally, in the HFS group, minimal damage by sham surgery resulted in an increased OARSI score. HFS diet resulted in the largest metabolic dysregulation, synovial inflammation and increased CD68 staining in tibia epiphysis bone marrow. Conclusion: Obesogenic diets resulted in aggravated OA development, even with very minimal joint damage when combined with the sucrose/fat-rich diet. We hypothesize that diet-induced low-grade inflammation primes monocytes and macrophages in the blood, bone marrow, and synovium, resulting in joint damage when triggered by groove OA inducing surgery. When the metabolic dysregulation is larger, as observed here for the HFS diet, the surgical trigger required to induce joint damage may be smaller, or even redundant.
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Affiliation(s)
- K. Warmink
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - J. L. Rios
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - D. R. van Valkengoed
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - P. Vinod
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - N. M. Korthagen
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
- Department of Equine Sciences, Utrecht University, Utrecht, Netherlands
| | - H. Weinans
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
- Department of Biomechanical Engineering, TU Delft, Delft, Netherlands
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8
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Zhao K, Ruan J, Nie L, Ye X, Li J. Effects of synovial macrophages in osteoarthritis. Front Immunol 2023; 14:1164137. [PMID: 37492583 PMCID: PMC10364050 DOI: 10.3389/fimmu.2023.1164137] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/14/2023] [Indexed: 07/27/2023] Open
Abstract
Osteoarthritis (OA) is a common degenerative disease in mammals. However, its pathogenesis remains unclear. Studies indicate that OA is not only an aging process that but also an inflammation-related disease. Synovitis is closely related to the progression of OA, and synovial macrophages are crucial participants in synovitis. Instead of being a homogeneous population, macrophages are polarized into M1 or M2 subtypes in OA synovial tissues. Polarization is highly associated with OA severity. However, the M1/M2 ratio cannot be the only factor in OA prognosis because intermediate stages of macrophages also exist. To better understand the mechanism of this heterogeneous disease, OA subtypes of synovial macrophages classified by gene expression were examined. Synovial macrophages do not act alone; they interact with surrounding cells such as synovial fibroblasts, osteoclasts, chondrocytes, lymphocytes and even adipose cells through a paracrine approach to exacerbate OA. Treatments targeting synovial macrophages and their polarization are effective in relieving pain and protecting cartilage during OA development. In this review, we describe how synovial macrophages and their different polarization states influence the progression of OA. We summarize the current knowledge of the interactions between macrophages and other joint cells and examine the current research on new medications targeting synovial macrophages.
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Affiliation(s)
- Kun Zhao
- Center for Rehabilitation Medicine, Rehabilitation and Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
- Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jiaqi Ruan
- Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Liuyan Nie
- Department of Rheumatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiangming Ye
- Center for Rehabilitation Medicine, Rehabilitation and Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Juebao Li
- Center for Rehabilitation Medicine, Rehabilitation and Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
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Sobieh BH, El-Mesallamy HO, Kassem DH. Beyond mechanical loading: The metabolic contribution of obesity in osteoarthritis unveils novel therapeutic targets. Heliyon 2023; 9:e15700. [PMID: 37180899 PMCID: PMC10172930 DOI: 10.1016/j.heliyon.2023.e15700] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/16/2023] Open
Abstract
Osteoarthritis (OA) is a prevalent progressive disease that frequently coexists with obesity. For several decades, OA was thought to be the result of ageing and mechanical stress on cartilage. Researchers' perspective has been greatly transformed when cumulative findings emphasized the role of adipose tissue in the diseases. Nowadays, the metabolic effect of obesity on cartilage tissue has become an integral part of obesity research; hoping to discover a disease-modifying drug for OA. Recently, several adipokines have been reported to be associated with OA. Particularly, metrnl (meteorin-like) and retinol-binding protein 4 (RBP4) have been recognized as emerging adipokines that can mediate OA pathogenesis. Accordingly, in this review, we will summarize the latest findings concerned with the metabolic contribution of obesity in OA pathogenesis, with particular emphasis on dyslipidemia, insulin resistance and adipokines. Additionally, we will discuss the most recent adipokines that have been reported to play a role in this context. Careful consideration of these molecular mechanisms interrelated with obesity and OA will undoubtedly unveil new avenues for OA treatment.
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Affiliation(s)
- Basma H. Sobieh
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Hala O. El-Mesallamy
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Faculty of Pharmacy, Sinai University, Sinai, Egypt
| | - Dina H. Kassem
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Corresponding author. Associate Professor of Biochemistry Department of Biochemistry, Faculty of Pharmacy, Ain Shams University, street of African Union Organization, 11566, Cairo, Egypt.
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10
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van Gemert Y, Blom AB, Di Ceglie I, Walgreen B, Helsen M, Sloetjes A, Vogl T, Roth J, Kruisbergen NNL, Pieterman EJ, Princen HMG, van der Kraan PM, van Lent PLEM, van den Bosch MHJ. Intensive cholesterol-lowering treatment reduces synovial inflammation during early collagenase-induced osteoarthritis, but not pathology at end-stage disease in female dyslipidemic E3L.CETP mice. Osteoarthritis Cartilage 2023:S1063-4584(23)00703-3. [PMID: 36898656 DOI: 10.1016/j.joca.2023.01.577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 01/12/2023] [Accepted: 01/31/2023] [Indexed: 03/12/2023]
Abstract
INTRODUCTION The association between metabolic syndrome (MetS) and osteoarthritis (OA) development has become increasingly recognized. In this context, the exact role of cholesterol and cholesterol-lowering therapies in OA development has remained elusive. Recently, we did not observe beneficial effects of intensive cholesterol-lowering treatments on spontaneous OA development in E3L.CETP mice. We postulated that in the presence of local inflammation caused by a joint lesion, cholesterol-lowering therapies may ameliorate OA pathology. MATERIALS AND METHODS Female ApoE3∗Leiden.CETP mice were fed a cholesterol-supplemented Western type diet. After 3 weeks, half of the mice received intensive cholesterol-lowering treatment consisting of atorvastatin and the anti-PCSK9 antibody alirocumab. Three weeks after the start of the treatment, OA was induced via intra-articular injections of collagenase. Serum levels of cholesterol and triglycerides were monitored throughout the study. Knee joints were analyzed for synovial inflammation, cartilage degeneration, subchondral bone sclerosis and ectopic bone formation using histology. Inflammatory cytokines were determined in serum and synovial washouts. RESULTS Cholesterol-lowering treatment strongly reduced serum cholesterol and triglyceride levels. Mice receiving cholesterol-lowering treatment showed a significant reduction in synovial inflammation (P = 0.008, WTD: 95% CI: 1.4- 2.3; WTD + AA: 95% CI: 0.8- 1.5) and synovial lining thickness (WTD: 95% CI: 3.0-4.6, WTD + AA: 95% CI: 2.1-3.2) during early-stage collagenase-induced OA. Serum levels of S100A8/A9, MCP-1 and KC were significantly reduced after cholesterol-lowering treatment (P = 0.0005, 95% CI: -46.0 to -12.0; P = 2.8 × 10-10, 95% CI: -398.3 to -152.1; P = 2.1 × 10-9, -66.8 to -30.4, respectively). However, this reduction did not reduce OA pathology, determined by ectopic bone formation, subchondral bone sclerosis and cartilage damage at end-stage disease. CONCLUSION This study shows that intensive cholesterol-lowering treatment reduces joint inflammation after induction of collagenase-induced OA, but this did not reduce end stage pathology in female mice.
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Affiliation(s)
- Y van Gemert
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - A B Blom
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - I Di Ceglie
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - B Walgreen
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - M Helsen
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - A Sloetjes
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - T Vogl
- Institute of Immunology, University of Münster, Germany
| | - J Roth
- Institute of Immunology, University of Münster, Germany
| | - N N L Kruisbergen
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - E J Pieterman
- Metabolic Health Research, TNO, Leiden, the Netherlands
| | - H M G Princen
- Metabolic Health Research, TNO, Leiden, the Netherlands
| | - P M van der Kraan
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - P L E M van Lent
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - M H J van den Bosch
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands.
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Herrero-Beaumont G, Largo R. Response to: 'Correspondence on "Glucosamine and O-GlcNAcylation: a novel immunometabolic therapeutic target for OA and chronic, low-grade systemic inflammation?' by Angelides and Manolios. Ann Rheum Dis 2023; 82:e58. [PMID: 33504482 DOI: 10.1136/annrheumdis-2020-219721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 11/04/2022]
Affiliation(s)
- Gabriel Herrero-Beaumont
- Joint and Bone Research Unit. Rheumatology Dept, Instituto de Investigacion Sanitaria de la Fundacion Jimenez Diaz-UAM, Madrid, Spain
| | - Raquel Largo
- Joint and Bone Research Unit. Rheumatology Dept, Instituto de Investigacion Sanitaria de la Fundacion Jimenez Diaz-UAM, Madrid, Spain
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Ahorukomeye P, Mahajan A, Du JY, Yu CC, Bhandutia AK, Ahn NU. Association Between Hypercholesterolemia and Neck Pain in a Cross-sectional Population-based Study. Spine (Phila Pa 1976) 2023; 48:137-142. [PMID: 36122297 DOI: 10.1097/brs.0000000000004485] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 09/06/2022] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Retrospective cross-sectional analysis. SUMMARY OF BACKGROUND DATA Degenerative changes are a major contributor to chronic neck pain. According to the vascular hypothesis of disk disease, atherosclerosis of the segmental arteries contributes to ischemia of the lumbar disks and resulting degenerative changes. Prior studies have demonstrated an association between atherosclerotic risk factors and lumbar degenerative disease. Similarly, atherosclerosis may contribute to cervical disk degeneration. Cardiovascular disease is associated with the development of atherosclerosis, particularly in small vessels to the cervical spine. Hypercholesterolemia is a major contributor to the morbidity associated with cardiovascular disease. This study aims to examine the relationship between hypercholesterolemia and neck pain. MATERIALS AND METHODS Analysis was focused on the respondents to neck pain items of the standardized questionnaire. Odds ratios were calculated, and logistic regression analyses adjusted for demographic, education, and mental health conditions. RESULTS There were 30,461 participants in the 2018 Medicare Expenditure Panel Survey (MEPS) survey. Of those, 1049 (3.4%) subjects responded to presence of a diagnosis of cervical disorders with neck pain. Mean age of respondents was 62.6±16.1. Overall prevalence of neck pain was 21.1%. Prevalence of neck pain was similar by age, sex, education level, and occupation ( P >0.05 for each). Neck pain was more prevalent in white race and lower total family income ( P <0.05). Current everyday smokers also had higher prevalence of neck pain ( P <0.05). Logistic regression analysis revealed a higher prevalence of neck pain in those with hypercholesterolemia after controlling for relevant covariates (adjusted odds ratio=1.54, 95% CI: 1.08-2.22, P =0.018). CONCLUSIONS Subjects with hypercholesterolemia were 54% more likely to have neck pain after controlling for confounders. This suggests that hypercholesterolemia has a role to play in degeneration of the cervical spine. Therefore, prevention and proper management of high cholesterol may curtail the development and progression of degenerative cervical disk disease and thus, neck pain.
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Affiliation(s)
- Peter Ahorukomeye
- University Hospitals Cleveland Medical Center, Cleveland, OH
- Case Western Reserve School of Medicine, Cleveland, OH
| | | | - Jerry Y Du
- University Hospitals Cleveland Medical Center, Cleveland, OH
| | | | | | - Nicholas U Ahn
- University Hospitals Cleveland Medical Center, Cleveland, OH
- Case Western Reserve School of Medicine, Cleveland, OH
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Chen X, Liu J, Sun Y, Wen J, Zhou Q, Ding X, Zhang X. Correlation analysis of differentially expressed long non-coding RNA HOTAIR with PTEN/PI3K/AKT pathway and inflammation in patients with osteoarthritis and the effect of baicalin intervention. J Orthop Surg Res 2023; 18:34. [PMID: 36635778 PMCID: PMC9835332 DOI: 10.1186/s13018-023-03505-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/02/2023] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVE This study aims to investigate the correlation of long non-coding RNA HOX transcript antisense RNA (lncRNA HOTAIR) with the PTEN/PI3K/AKT pathway and clinical-related indicators in osteoarthritis (OA) and determine the effect of baicalin intervention. METHODS The levels of clinical lipid metabolism indexes and immune-inflammatory indexes in OA patients and normal controls was detected. OA chondrocytes (OA-CHs) were induced with peripheral blood mononuclear cells (PBMCs), followed by baicalin treatment (50 ug/mL). RT-qPCR was performed to measure lncRNA HOTAIR expression. The levels of inflammatory cytokines and adiponectin were detected using ELISA kits. CCK-8 assay was used to assess the viability of CHs. The related protein expression was measured using Western blot analysis. RESULTS LncRNA HOTAIR might act as a biomarker of OA in vivo. LncRNA HOTAIR was positively correlated with TC, hs-CRP, IgA, TNF-α, and VAS score. Overexpression of lncRNA HOTAIR in vitro inhibited cell proliferation, reduced IL-10 and PTEN expression, but augmented TNF-α, p-PI3K, and p-AKT proteins in OA-CHs stimulated by OA-PBMCs. The changes of above indexes were also observed in OA-CHs stimulated by OA-PBMCs treated with si-lncRNA HOTAIR or baicalin, implying the synergistic effects of baicalin and lncRNA HOTAIR silencing on OA. CONCLUSIONS Conclusively, lncRNA HOTAIR was highly expressed in OA-CHs, which facilitated OA inflammatory responses by orchestrating inflammatory cytokines and the PTEN/PI3K/AKT pathway. Baicalin exerted therapeutic effects by inhibiting the expression of lncRNA HOTAIR, decreasing the protein levels of p-PI3K and p-AKT, and increasing the protein levels of PTEN, APN, and ADIPOR1.
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Affiliation(s)
- Xiaolu Chen
- grid.252251.30000 0004 1757 8247Anhui University of Traditional Chinese Medicine, Hefei, 230031 Anhui Province China ,grid.252251.30000 0004 1757 8247Institute of Rheumatology, Anhui University of Chinese Medicine, Hefei, 230012 Anhui Province China
| | - Jian Liu
- grid.412679.f0000 0004 1771 3402Department of Rheumatology and Immunology, First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, 230038 Anhui Province China ,grid.252251.30000 0004 1757 8247Institute of Rheumatology, Anhui University of Chinese Medicine, Hefei, 230012 Anhui Province China
| | - Yanqiu Sun
- grid.252251.30000 0004 1757 8247Anhui University of Traditional Chinese Medicine, Hefei, 230031 Anhui Province China ,grid.252251.30000 0004 1757 8247Institute of Rheumatology, Anhui University of Chinese Medicine, Hefei, 230012 Anhui Province China
| | - Jianting Wen
- grid.252251.30000 0004 1757 8247Anhui University of Traditional Chinese Medicine, Hefei, 230031 Anhui Province China ,grid.252251.30000 0004 1757 8247Institute of Rheumatology, Anhui University of Chinese Medicine, Hefei, 230012 Anhui Province China
| | - Qin Zhou
- grid.252251.30000 0004 1757 8247Anhui University of Traditional Chinese Medicine, Hefei, 230031 Anhui Province China ,grid.252251.30000 0004 1757 8247Institute of Rheumatology, Anhui University of Chinese Medicine, Hefei, 230012 Anhui Province China
| | - Xiang Ding
- grid.252251.30000 0004 1757 8247Anhui University of Traditional Chinese Medicine, Hefei, 230031 Anhui Province China ,grid.252251.30000 0004 1757 8247Institute of Rheumatology, Anhui University of Chinese Medicine, Hefei, 230012 Anhui Province China
| | - Xianheng Zhang
- grid.252251.30000 0004 1757 8247Anhui University of Traditional Chinese Medicine, Hefei, 230031 Anhui Province China ,grid.252251.30000 0004 1757 8247Institute of Rheumatology, Anhui University of Chinese Medicine, Hefei, 230012 Anhui Province China
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14
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Effusion-synovitis worsening mediates the association between body mass index and Kellgren-Lawrence progression in obese individuals: data from the Osteoarthritis Initiative. Osteoarthritis Cartilage 2022; 30:1278-1286. [PMID: 35714760 PMCID: PMC9910445 DOI: 10.1016/j.joca.2022.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/04/2022] [Accepted: 05/31/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Both obesity and synovitis are independently associated with knee osteoarthritis (KOA) progression. We examined whether synovitis mediates the relationship between body mass index (BMI) and KOA radiographic progression in the Osteoarthritis Initiative (OAI) cohort. DESIGN We conducted a case-control study within the OAI. Cases (n = 315) were right knees with an increase of ≥1 Kellgren-Lawrence from baseline to 48 months of follow-up. Controls (n = 315) were right knees with no KL change. Cases and controls were matched by age, sex, race, and baseline KL. MRI Osteoarthritis Knee Score (MOAKS) at baseline and at 2 years was used for a semi-quantitative scoring (0-3) of effusion-synovitis and Hoffa-synovitis. Conditional logistic regression estimated associations between BMI and synovitis with KOA progression. Mediation analysis was used to assess the mediating effects of synovitis. RESULTS The mean age of participants was 61 years, 70.8% were women, and 87% were White. KOA progression was associated with higher BMI (adjusted OR 1.05; 95%CI 1.01-1.09) and effusion-synovitis relative to no effusion-synovitis (adjusted OR 2.2; 95%CI 1.6-3.1). Associations between effusion-synovitis worsening and KOA progression were more pronounced among obese individuals (OR 34.1; 95%CI 4.2-274.8; P = 0.001) compared to normal weight (OR 3.2; 95%CI 0.8-12.8, P=0.096) individuals. Effusion-synovitis at 2 years, but not at baseline, mediated the relationship between BMI and KOA progression over a 4-year period. CONCLUSIONS We found that effusion-synovitis worsening mediated the association between BMI and KOA progression and was associated with increased risk of KOA progression, particularly among obese individuals.
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Yang F, Huang HJ, Zhang Z, Zhang X, Wang JQ. Hyperlipidemia does not influence clinical outcome in arthroscopic treatment of femoroacetabular impingement syndrome. J Orthop Surg Res 2022; 17:398. [PMID: 36045389 PMCID: PMC9429662 DOI: 10.1186/s13018-022-03290-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/15/2022] [Indexed: 11/24/2022] Open
Abstract
Background Cholesterol can trigger degenerative processes in the chondrocytes. The internal layer of the hip labral consists of cartilage-specific type II collagen-positive fibrocartilage. The purpose of this study was to compare outcomes after arthroscopy labral repair in FAIS patients with preoperative hyperlipidemia to a control group with no hyperlipidemia. Methods Data were prospectively collected and retrospectively reviewed for FAIS patients who had arthroscopy 2019. Patients with hyperlipidemia were 1:1 propensity-score matched to patients without hyperlipidemia. Patient-reported outcomes (HOS-ADL, iHOT-12, mHHS), VAS scores, radiographic measures, performed procedures, complications, and revision surgery were compared and analyzed for both groups. Results A total of 41 patients with hyperlipidemia and 41 patients without hyperlipidemia were found using propensity-score matching. When compared to preoperative levels, both groups demonstrated significant improvements in PROs and VAS scores at the final follow-up. Besides, there were no significant differences in preoperative scores and final outcome scores between the groups. Besides, there were no other differences in revision rate and the rate of meeting the PASS and MCID between the study and the control groups. Conclusion It was demonstrated in this study that FAIS patients with hyperlipidemia can expect to experience similar good short-term patient-reported outcomes as compared with patients without hyperlipidemia. Level of evidence Case-series study; Level of Evidence: Level III.
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Affiliation(s)
- Fan Yang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China
| | - Hong-Jie Huang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China
| | - Zhu Zhang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China
| | - Xin Zhang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China.
| | - Jian-Quan Wang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine of Peking University, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, People's Republic of China.
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Gratal P, Mediero A, Lamuedra A, Matamoros-Recio A, Herencia C, Herrero-Beaumont G, Martín-Santamaría S, Largo R. 6-shogaol treatment improves experimental knee OA exerting a pleiotropic effect over immune innate signaling response in chondrocytes. Br J Pharmacol 2022; 179:5089-5108. [PMID: 35760458 DOI: 10.1111/bph.15908] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 04/09/2022] [Accepted: 06/14/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE The pathogenesis of osteoarthritis (OA) implicates a low-grade inflammation associated to the activation of the innate immune system. Toll like receptor (TLR) stimulation triggers the release of inflammatory mediators, which aggravate OA severity. The aim was to study the preventive effect of 6-shogaol (6S), a potential TLR4 inhibitor, on the treatment of experimental knee OA. EXPERIMENTAL APPROACH OA was induced in C57BL6 mice by surgical section of the medial meniscotibial ligament, which received 6S for eight weeks. Cartilage damage, inflammatory mediator presence, and disease markers were assessed in the joint tissues by immunohistochemistry. Computational modelling was used to predict binding modes of 6S into the TLR4/MD2 receptor and its permeability across cellular membranes. Employing LPS-stimulated chondrocytes and MAPK assay, we clarified 6S action mechanisms. KEY RESULTS 6S treatment was able to prevent articular cartilage lesions, synovitis, and the presence of pro-inflammatory mediators and disease markers in OA animals. Molecular modelling studies predicted 6S interaction with the TLR4/MD-2 heterodimer in an antagonist conformation through its binding into the MD-2 pocket. In cell culture, we confirmed that 6S reduced LPS-induced TLR4 inflammatory signaling pathways. Besides, MAPK assay demonstrated that 6S directly inhibits the ERK1/2 phosphorylation activity. CONCLUSION AND IMPLICATIONS 6S evoked a preventive action on cartilage and synovial inflammation in OA mice. 6S effect may take place not only by hindering the interaction between TLR4 ligands and the TLR4/MD-2 complex in chondrocytes, but also through inhibition of ERK phosphorylation, implying a pleiotropic effect on different mediators activated during OA, which proposes it as an attractive drug for OA treatment.
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Affiliation(s)
- Paula Gratal
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Aránzazu Mediero
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Ana Lamuedra
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Alejandra Matamoros-Recio
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CIB-CSIC, Madrid, Spain
| | - Carmen Herencia
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Sonsoles Martín-Santamaría
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CIB-CSIC, Madrid, Spain
| | - Raquel Largo
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
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Sanchez-Lopez E, Coras R, Torres A, Lane NE, Guma M. Synovial inflammation in osteoarthritis progression. Nat Rev Rheumatol 2022; 18:258-275. [PMID: 35165404 PMCID: PMC9050956 DOI: 10.1038/s41584-022-00749-9] [Citation(s) in RCA: 278] [Impact Index Per Article: 139.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2022] [Indexed: 02/06/2023]
Abstract
Osteoarthritis (OA) is a progressive degenerative disease resulting in joint deterioration. Synovial inflammation is present in the OA joint and has been associated with radiographic and pain progression. Several OA risk factors, including ageing, obesity, trauma and mechanical loading, play a role in OA pathogenesis, likely by modifying synovial biology. In addition, other factors, such as mitochondrial dysfunction, damage-associated molecular patterns, cytokines, metabolites and crystals in the synovium, activate synovial cells and mediate synovial inflammation. An understanding of the activated pathways that are involved in OA-related synovial inflammation could form the basis for the stratification of patients and the development of novel therapeutics. This Review focuses on the biology of the OA synovium, how the cells residing in or recruited to the synovium interact with each other, how they become activated, how they contribute to OA progression and their interplay with other joint structures.
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Affiliation(s)
- Elsa Sanchez-Lopez
- Department of Orthopaedic Surgery, University of California San Diego, San Diego, CA, USA
| | - Roxana Coras
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, San Diego, CA, USA
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Alyssa Torres
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, San Diego, CA, USA
| | - Nancy E Lane
- Division of Rheumatology, Department of Medicine, University of California Davis, Davis, CA, USA
| | - Monica Guma
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, San Diego, CA, USA.
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain.
- San Diego VA Healthcare Service, San Diego, CA, USA.
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Li H, Gou Y, Tian F, Zhang Y, Lian Q, Hu Y, Zhang L. Combination of metformin and exercise alleviates osteoarthritis in ovariectomized mice fed a high-fat diet. Bone 2022; 157:116323. [PMID: 34990878 DOI: 10.1016/j.bone.2021.116323] [Citation(s) in RCA: 3] [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: 10/16/2021] [Revised: 12/10/2021] [Accepted: 12/28/2021] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To evaluate and compare the effects of the combined intervention of metformin and exercise on the degeneration of cartilage and subchondral bone in a mouse model of osteoarthritis (OA) induced by estrogen deficiency and obesity. METHODS 56 female 3-month-old C57BL/6 mice underwent ovariectomy (OVX) (n = 40) or a sham operation (n = 16) and were randomized into seven groups (n = 8/group): 1) sham-operated mice with a normal diet (Sham), 2) OVX mice with a normal diet (OVX), 3) sham-operated mice with high-fat diet (HFD) (HSVX), 4) OVX mice with HFD (HOVX), 5) OVX mice with HFD + exercise (HOVE), 6) OVX mice with HFD + metformin (HOMX), and 7) OVX mice with HFD + metformin + exercise (HOME). Drug administration and exercise training were initiated 72 h after surgical operation. The pathology of OA was assessed by histomorphology analyses, immunohistochemistry (IHC), tartrate-resistant acid phosphatase (TRAP) staining, micro-computed tomography and enzyme-linked immunosorbent assay (ELISA). RESULTS Histomorphological analysis revealed that OA was significantly exacerbated by the coexistence of estrogen deficiency and obesity and markedly alleviated by the combined intervention. In details, metformin plus exercise ameliorated the abnormal metabolic status and cartilage lesions, significantly increased aggrecan and collagen-II expression and decreased the expression of ADAMTS-4. Furthermore, combined intervention markedly improved bone degeneration, bone mass and microarchitecture of subchondral bone. And the intervention also increased the concentration of OCN and decreased the serum concentration of IL-1β and CTX-1 and glucose. CONCLUSIONS The coexistence of estrogen deficiency and obesity further aggravates abnormal metabolic pathology and articular degeneration, which could be prevented by the combination with metformin and exercise, suggesting that combined intervention may be a potential candidate for amelioration of the progression of OA.
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Affiliation(s)
- Hetong Li
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, Hebei, PR China.
| | - Yu Gou
- Department of Orthopaedic Surgery, Tianjin Hospital, Tianjin University, Tianjin, PR China.
| | - Faming Tian
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, PR China.
| | - Ya Zhang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, PR China
| | - Qiangqiang Lian
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, PR China
| | - Yunpeng Hu
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, Hebei, PR China
| | - Liu Zhang
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, Hebei, PR China.
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Lamuedra A, Gratal P, Calatrava L, Ruiz-Perez VL, Palencia-Campos A, Portal-Núñez S, Mediero A, Herrero-Beaumont G, Largo R. Blocking chondrocyte hypertrophy in conditional Evc knockout mice does not modify cartilage damage in osteoarthritis. FASEB J 2022; 36:e22258. [PMID: 35334131 DOI: 10.1096/fj.202101791rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/21/2022] [Accepted: 03/07/2022] [Indexed: 12/16/2022]
Abstract
Chondrocytes in osteoarthritic (OA) cartilage acquire a hypertrophic-like phenotype, where Hedgehog (Hh) signaling is pivotal. Hh overexpression causes OA-like cartilage lesions, whereas its downregulation prevents articular destruction in mouse models. Mutations in EVC and EVC2 genes disrupt Hh signaling, and are responsible for the Ellis-van Creveld syndrome skeletal dysplasia. Since Ellis-van Creveld syndrome protein (Evc) deletion is expected to hamper Hh target gene expression we hypothesized that it would also prevent OA progression avoiding chondrocyte hypertrophy. Our aim was to study Evc as a new therapeutic target in OA, and whether Evc deletion restrains chondrocyte hypertrophy and prevents joint damage in an Evc tamoxifen induced knockout (EvccKO ) model of OA. For this purpose, OA was induced by surgical knee destabilization in wild-type (WT) and EvccKO adult mice, and healthy WT mice were used as controls (n = 10 knees/group). Hypertrophic markers and Hh genes were measured by qRT-PCR, and metalloproteinases (MMP) levels assessed by western blot. Human OA chondrocytes and cartilage samples were obtained from patients undergoing knee joint replacement surgery. Cyclopamine (CPA) was used for Hh pharmacological inhibition and IL-1 beta as an inflammatory insult. Our results showed that tamoxifen induced inactivation of Evc inhibited Hh overexpression and partially prevented chondrocyte hypertrophy during OA, although it did not ameliorate cartilage damage in DMM-EvccKO mice. Hh pathway inhibition did not modify the expression of proinflammatory mediators induced by IL-1 beta in human OA chondrocytes in culture. We found that hypertrophic-IHH-and inflammatory-COX-2-markers co-localized in OA cartilage samples. We concluded that tamoxifen induced inactivation of Evc partially prevented chondrocyte hypertrophy in DMM-EvccKO mice, but it did not ameliorate cartilage damage. Overall, our results suggest that chondrocyte hypertrophy per se is not a pathogenic event in the progression of OA.
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Affiliation(s)
- Ana Lamuedra
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Paula Gratal
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Lucía Calatrava
- Instituto de Investigaciones Biomédicas 'Alberto Sols', CSIC-UAM, Madrid, Spain.,CIBER de Enfermedades Raras (CIBERER), ISCIII, Spain
| | - Víctor Luis Ruiz-Perez
- Instituto de Investigaciones Biomédicas 'Alberto Sols', CSIC-UAM, Madrid, Spain.,CIBER de Enfermedades Raras (CIBERER), ISCIII, Spain.,Instituto de Genética Médica y Molecular (INGEMM), Hospital Universitario La Paz-IdiPaz-UAM, Madrid, Spain
| | | | - Sergio Portal-Núñez
- Bone Physiopathology Laboratory, Applied Molecular Medicine Institute (IMMA), Universidad San Pablo-CEU, Madrid, Spain
| | - Aránzazu Mediero
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
| | - Raquel Largo
- Bone and Joint Research Unit, Service of Rheumatology, IIS-Fundación Jiménez Díaz, Autonomous University of Madrid, Madrid, Spain
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20
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Wei Z, Li F, Pi G. Association Between Gut Microbiota and Osteoarthritis: A Review of Evidence for Potential Mechanisms and Therapeutics. Front Cell Infect Microbiol 2022; 12:812596. [PMID: 35372125 PMCID: PMC8966131 DOI: 10.3389/fcimb.2022.812596] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/24/2022] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a multifactorial joint disease characterized by degeneration of articular cartilage, which leads to joints pain, disability and reduced quality of life in patients with OA. Interpreting the potential mechanisms underlying OA pathogenesis is crucial to the development of new disease modifying treatments. Although multiple factors contribute to the initiation and progression of OA, gut microbiota has gradually been regarded as an important pathogenic factor in the development of OA. Gut microbiota can be regarded as a multifunctional “organ”, closely related to a series of immune, metabolic and neurological functions. This review summarized research evidences supporting the correlation between gut microbiota and OA, and interpreted the potential mechanisms underlying the correlation from four aspects: immune system, metabolism, gut-brain axis and gut microbiota modulation. Future research should focus on whether there are specific gut microbiota composition or even specific pathogens and the corresponding signaling pathways that contribute to the initiation and progression of OA, and validate the potential of targeting gut microbiota for the treatment of patients with OA.
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Affiliation(s)
| | - Feng Li
- *Correspondence: Feng Li, ; Guofu Pi,
| | - Guofu Pi
- *Correspondence: Feng Li, ; Guofu Pi,
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21
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Cao X, Cui Z, Ding Z, Chen Y, Wu S, Wang X, Huang J. An osteoarthritis subtype characterized by synovial lipid metabolism disorder and fibroblast-like synoviocyte dysfunction. J Orthop Translat 2022; 33:142-152. [PMID: 35330945 PMCID: PMC8919236 DOI: 10.1016/j.jot.2022.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/08/2022] [Accepted: 02/22/2022] [Indexed: 11/25/2022] Open
Abstract
Background The heterogeneity of osteoarthritis (OA) significantly limits the effectiveness of pharmacological treatments in an unselected patient population. In this context, the identification of OA subtypes is meaningful for the development of therapies that target specific types of OA pathogenesis. Methods Expression array profiles of 70 OA and 36 control synovial samples were extracted from the GEO database. Unsupervised consensus clustering was performed based on the most variable genes to identify OA subclusters. Next, Joint samples from OA patients were obtained. We divided the OA patient into two subpopulations according to synovial ADCY7 levels. Synovium and cartilage samples from different OA subpopulations were evaluated. In addition, we established a high-fat diet (HFD)-induced rat OA model. We evaluated OA progression, lipid metabolism, synovitis and fibroblast-like synoviocytes (FLS) function in this HFD-induced OA model. Results 70 OA patients were categorized into three distinct subclusters. We noted that one subcluster was characterized by synovial lipid metabolism disorder GO terms. We further identified the most noticeable KEGG pathway “Regulation of lipolysis in adipocytes” in this subcluster as well as the most significantly differentially expressed gene, ADCY7. We found that the ADCY7 high expressing group (32.6%) exhibited features of synovial inflammatory lipolysis epithelial-mesenchymal transition (EMT) tendency, as well as faster join space narrowing. The HFD induced OA-like degeneration in rat joints. We observed similar synovial inflammatory lipolysis and EMT in FLS, characterized by higher proliferative and invasive activity and elevated proinflammatory and procatabolic properties. ADCY7 was highly expressed in the synovium of the HFD-OA model rats and the inhibition of ADCY7 effectively attenuated these HFD-induced degenerative changes as well as synovial inflammatory lipolysis and FLS dysfunction. In HFD-FLSs, ADCY7 promoted the phosphorylation of PKA as well as its downstream lipid droplet-associated protein PLIN1 and hormone-sensitive lipase (HSL). The inhibition of PKA largely alleviated ADCY7-mediated HFD-FLS dysfunction. Conclusions We described a synovial EMT and lipid metabolism disorder in the pathogenesis of OA. This novel mechanism may represent a currently undefined OA subtype. ADCY7 is a potential molecular marker of this pathomechanism. The Translational potential of this article Utilizing synovial samples from OA patients, we identified a subpopulation with high ADCY7 expression. This may represent a currently undefined OA subtype and explain the clinical phenomenon of more severe synovial inflammation in obese OA patients. In addition, we established an HFD-induced OA rat model and found an upregulation of ADCY7 in the synovium. We confirmed that the inhibition of ADCY7 could effectively attenuate HFD-induced degenerative changes as well as the inflammatory lipolysis and FLS dysfunction observed in the rat model. This suggests that ADCY7 and its downstream pathways are potential pharmacological targets for treating this lipid-metabolism-disorder-related OA mechanism.
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22
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Guan Z, Luo L, Liu S, Guan Z, Zhang Q, Li X, Tao K. The Role of Depletion of Gut Microbiota in Osteoporosis and Osteoarthritis: A Narrative Review. Front Endocrinol (Lausanne) 2022; 13:847401. [PMID: 35418947 PMCID: PMC8996773 DOI: 10.3389/fendo.2022.847401] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/28/2022] [Indexed: 01/01/2023] Open
Abstract
Osteoporosis and osteoarthritis are common diseases in an aging society, are considered metabolic diseases, and affect the quality of life of older adults. In addition, the gut microbiome is considered an additional organ to regulate bone metabolism. In the past decade, people have been studying the relationship between gut microbiota and bone metabolism. The role and mechanism of the gut microbiota in regulating bone metabolism is very important to improve the development of osteoporosis and osteoarthritis. Depletion of the gut microbiota as a method of studying the role of the gut microbiota was provided strategies to enhance the role of the gut microbiota in regulating osteoporosis and osteoarthritis. In this review, we discuss how depletion of the gut microbiota affects osteoporosis and osteoarthritis.
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Affiliation(s)
- Zhiyuan Guan
- Department of Orthopedics, The Shanghai Tenth People’s Hospital of Tongji University, Shanghai, China
| | - Liying Luo
- Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shengfu Liu
- Department of Orthopedics, The Shanghai Tenth People’s Hospital of Tongji University, Shanghai, China
| | - Zhiqiang Guan
- Department of Dermatology, Xuzhou Municipal Hospital Affiliated with Xuzhou Medical University, Xuzhou, China
- *Correspondence: Kun Tao, ; Zhiqiang Guan, ; Qinggang Zhang, ; Xu Li,
| | - Qinggang Zhang
- Department of Orthopedics, The Shanghai Tenth People’s Hospital of Tongji University, Shanghai, China
- *Correspondence: Kun Tao, ; Zhiqiang Guan, ; Qinggang Zhang, ; Xu Li,
| | - Xu Li
- Spine Center, Department of Orthopedics, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Kun Tao, ; Zhiqiang Guan, ; Qinggang Zhang, ; Xu Li,
| | - Kun Tao
- Department of Orthopedics, The Shanghai Tenth People’s Hospital of Tongji University, Shanghai, China
- *Correspondence: Kun Tao, ; Zhiqiang Guan, ; Qinggang Zhang, ; Xu Li,
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23
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Haubruck P, Pinto MM, Moradi B, Little CB, Gentek R. Monocytes, Macrophages, and Their Potential Niches in Synovial Joints - Therapeutic Targets in Post-Traumatic Osteoarthritis? Front Immunol 2021; 12:763702. [PMID: 34804052 PMCID: PMC8600114 DOI: 10.3389/fimmu.2021.763702] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 10/18/2021] [Indexed: 12/21/2022] Open
Abstract
Synovial joints are complex structures that enable normal locomotion. Following injury, they undergo a series of changes, including a prevalent inflammatory response. This increases the risk for development of osteoarthritis (OA), the most common joint disorder. In healthy joints, macrophages are the predominant immune cells. They regulate bone turnover, constantly scavenge debris from the joint cavity and, together with synovial fibroblasts, form a protective barrier. Macrophages thus work in concert with the non-hematopoietic stroma. In turn, the stroma provides a scaffold as well as molecular signals for macrophage survival and functional imprinting: “a macrophage niche”. These intricate cellular interactions are susceptible to perturbations like those induced by joint injury. With this review, we explore how the concepts of local tissue niches apply to synovial joints. We introduce the joint micro-anatomy and cellular players, and discuss their potential interactions in healthy joints, with an emphasis on molecular cues underlying their crosstalk and relevance to joint functionality. We then consider how these interactions are perturbed by joint injury and how they may contribute to OA pathogenesis. We conclude by discussing how understanding these changes might help identify novel therapeutic avenues with the potential of restoring joint function and reducing post-traumatic OA risk.
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Affiliation(s)
- Patrick Haubruck
- Centre for Orthopaedics, Trauma Surgery and Spinal Cord Injury, Trauma and Reconstructive Surgery, Heidelberg University Hospital, Heidelberg, Germany.,Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Marlene Magalhaes Pinto
- Centre for Inflammation Research & Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
| | - Babak Moradi
- Clinic of Orthopaedics and Trauma Surgery, University Clinic of Schleswig-Holstein, Kiel, Germany
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Rebecca Gentek
- Centre for Inflammation Research & Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
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24
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Papathanasiou I, Anastasopoulou L, Tsezou A. Cholesterol metabolism related genes in osteoarthritis. Bone 2021; 152:116076. [PMID: 34174501 DOI: 10.1016/j.bone.2021.116076] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 02/07/2023]
Abstract
Cholesterol homeostasis plays a significant role in skeletal development and the dysregulation of cholesterol-related mechanism has been shown to be involved in the development of cartilage diseases including osteoarthritis (OA). Epidemiological studies have shown an association between elevated serum cholesterol levels and OA. Furthermore, abnormal lipid accumulation in chondrocytes as a result of abnormal regulation of cholesterol homeostasis has been demonstrated to be involved in the development of OA. Although, many in vivo and in vitro studies support the connection between cholesterol and cartilage degradation, the mechanisms underlying the complex interactions between lipid metabolism, especially HDL cholesterol metabolism, and OA remain unclear. The current review aims to address this problem and focuses on key molecular players of the HDL metabolism pathway and their role in ΟΑ pathogenesis. Understanding the complexity of biological processes implicated in OA pathogenesis, such as cholesterol metabolism, may lead to new targets for drug therapy of OA patients.
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Affiliation(s)
- Ioanna Papathanasiou
- Department of Biology, University of Thessaly, Faculty of Medicine, Larisa, Greece; Department of Cytogenetics and Molecular Genetics, University of Thessaly, Faculty of Medicine, Larisa, Greece
| | - Lydia Anastasopoulou
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Giessen, 35392 Giessen, Germany
| | - Aspasia Tsezou
- Department of Biology, University of Thessaly, Faculty of Medicine, Larisa, Greece; Department of Cytogenetics and Molecular Genetics, University of Thessaly, Faculty of Medicine, Larisa, Greece.
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25
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Joint obesity as a pathogenic factor in osteoarthritis. Osteoarthritis Cartilage 2021; 29:1239-1241. [PMID: 34126200 DOI: 10.1016/j.joca.2021.05.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/20/2021] [Accepted: 05/31/2021] [Indexed: 02/02/2023]
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26
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Sun AR, Wu X, Crawford R, Li H, Mei L, Luo Y, Xiao Y, Mao X, Prasadam I. Effects of Diet Induced Weight Reduction on Cartilage Pathology and Inflammatory Mediators in the Joint Tissues. Front Med (Lausanne) 2021; 8:628843. [PMID: 33829022 PMCID: PMC8019705 DOI: 10.3389/fmed.2021.628843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 02/25/2021] [Indexed: 12/29/2022] Open
Abstract
Obesogenic diets contribute to the pathology of osteoarthritis (OA) by altering systemic and local metabolic inflammation. Yet, it remains unclear how quickly and reproducibly the body responds to weight loss strategies and improve OA. In this study we tested whether switching obese diet to a normal chow diet can mitigate the detrimental effects of inflammatory pathways that contribute to OA pathology. Male C57BL/6 mice were first fed with obesogenic diet (high fat diet) and switched to normal chow diet (obese diet → normal diet) or continued obese diet or normal diet throughout the experiment. A mouse model of OA was induced by surgical destabilization of the medial meniscus (DMM) model into the knee joint. Outcome measures included changes in metabolic factors such as glucose, insulin, lipid, and serum cytokines levels. Inflammation in synovial biopsies was scored and inflammation was determined using FACs sorted macrophages. Cartilage degeneration was monitored using histopathology. Our results indicate, dietary switching (obese diet → normal diet) reduced body weight and restored metabolic parameters and showed less synovial tissue inflammation. Systemic blood concentrations of pro-inflammatory cytokines IL-1α, IL-6, IL-12p40, and IL-17 were decreased, and anti-inflammatory cytokines IL-4 and IL-13 were increased in dietary switch group compared to mice that were fed with obesogenic diet continuously. Although obese diet worsens the cartilage degeneration in DMM OA model, weight loss induced by dietary switch does not promote the histopathological changes of OA during this study period. Collectively, these data demonstrate that switching obesogenic diet to normal improved metabolic syndrome symptoms and can modulate both systemic and synovium inflammation levels.
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Affiliation(s)
- Antonia RuJia Sun
- School of Mechanical, Medical, and Process Engineering, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.,Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiaoxin Wu
- School of Mechanical, Medical, and Process Engineering, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.,Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ross Crawford
- School of Mechanical, Medical, and Process Engineering, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.,Orthopedic Department, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Hongxing Li
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lin Mei
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yong Luo
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yin Xiao
- School of Mechanical, Medical, and Process Engineering, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, QLD, Australia
| | - Xinzhan Mao
- Department of Orthopaedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Indira Prasadam
- School of Mechanical, Medical, and Process Engineering, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
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27
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Cross-Sectional Association between Hypercholesterolemia and Knee Pain in the Elderly with Radiographic Knee Osteoarthritis: Data from the Korean National Health and Nutritional Examination Survey. J Clin Med 2021; 10:jcm10050933. [PMID: 33804313 PMCID: PMC7957475 DOI: 10.3390/jcm10050933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/16/2021] [Accepted: 02/18/2021] [Indexed: 11/17/2022] Open
Abstract
Few studies have reported the relationship between knee pain and hypercholesterolemia in the elderly population with osteoarthritis (OA), independent of other variables. The aim of this study was to reveal the association between knee pain and metabolic diseases including hypercholesterolemia using a large-scale cohort. A cross-sectional study was conducted using data from the Korea National Health and the Nutrition Examination Survey (KNHANES-V, VI-1; 2010-2013). Among the subjects aged ≥60 years, 7438 subjects (weighted number estimate = 35,524,307) who replied knee pain item and performed the simple radiographs of knee were enrolled. Using multivariable ordinal logistic regression analysis, variables affecting knee pain were identified, and the odds ratio (OR) was calculated. Of the 35,524,307 subjects, 10,630,836 (29.9%) subjects experienced knee pain. Overall, 20,290,421 subjects (56.3%) had radiographic OA, and 8,119,372 (40.0%) of them complained of knee pain. Multivariable ordinal logistic regression analysis showed that among the metabolic diseases, only hypercholesterolemia was positively correlated with knee pain in the OA group (OR 1.24; 95% Confidence Interval 1.02-1.52, p = 0.033). There were no metabolic diseases correlated with knee pain in the non-OA group. This large-scale study revealed that in the elderly, hypercholesterolemia was positively associated with knee pain independent of body mass index and other metabolic diseases in the OA group, but not in the non-OA group. These results will help in understanding the nature of arthritic pain, and may support the need for exploring the longitudinal associations.
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28
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Collins KH, Lenz KL, Pollitt EN, Ferguson D, Hutson I, Springer LE, Oestreich AK, Tang R, Choi YR, Meyer GA, Teitelbaum SL, Pham CTN, Harris CA, Guilak F. Adipose tissue is a critical regulator of osteoarthritis. Proc Natl Acad Sci U S A 2021; 118:e2021096118. [PMID: 33443201 PMCID: PMC7817130 DOI: 10.1073/pnas.2021096118] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Osteoarthritis (OA), the leading cause of pain and disability worldwide, disproportionally affects individuals with obesity. The mechanisms by which obesity leads to the onset and progression of OA are unclear due to the complex interactions among the metabolic, biomechanical, and inflammatory factors that accompany increased adiposity. We used a murine preclinical model of lipodystrophy (LD) to examine the direct contribution of adipose tissue to OA. Knee joints of LD mice were protected from spontaneous or posttraumatic OA, on either a chow or high-fat diet, despite similar body weight and the presence of systemic inflammation. These findings indicate that adipose tissue itself plays a critical role in the pathophysiology of OA. Susceptibility to posttraumatic OA was reintroduced into LD mice using implantation of a small adipose tissue depot derived from wild-type animals or mouse embryonic fibroblasts that undergo spontaneous adipogenesis, implicating paracrine signaling from fat, rather than body weight, as a mediator of joint degeneration.
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Affiliation(s)
- Kelsey H Collins
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110
- Shriners Hospitals for Children, St. Louis, MO 63110
- Center of Regenerative Medicine, Washington University, St. Louis, MO 63110
| | - Kristin L Lenz
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110
- Shriners Hospitals for Children, St. Louis, MO 63110
- Center of Regenerative Medicine, Washington University, St. Louis, MO 63110
| | - Eleanor N Pollitt
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110
- Shriners Hospitals for Children, St. Louis, MO 63110
- Center of Regenerative Medicine, Washington University, St. Louis, MO 63110
| | - Daniel Ferguson
- Division of Endocrinology, Washington University, St. Louis, MO 63110
| | - Irina Hutson
- Division of Endocrinology, Washington University, St. Louis, MO 63110
| | - Luke E Springer
- Division of Rheumatology, Washington University, St. Louis, MO 63110
| | - Arin K Oestreich
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110
- Shriners Hospitals for Children, St. Louis, MO 63110
- Center of Regenerative Medicine, Washington University, St. Louis, MO 63110
| | - Ruhang Tang
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110
- Shriners Hospitals for Children, St. Louis, MO 63110
- Center of Regenerative Medicine, Washington University, St. Louis, MO 63110
| | - Yun-Rak Choi
- Yonsei University College of Medicine, Seoul 120-752, South Korea
| | - Gretchen A Meyer
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110
- Program in Physical Therapy, Washington University, St. Louis, MO 63110
| | - Steven L Teitelbaum
- Department of Pathology and Immunology, Washington University, St. Louis, MO 63110
| | | | - Charles A Harris
- Division of Endocrinology, Washington University, St. Louis, MO 63110
| | - Farshid Guilak
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110;
- Shriners Hospitals for Children, St. Louis, MO 63110
- Center of Regenerative Medicine, Washington University, St. Louis, MO 63110
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29
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Villalvilla A, Larrañaga-Vera A, Lamuedra A, Pérez-Baos S, López-Reyes AG, Herrero-Beaumont G, Largo R. Modulation of the Inflammatory Process by Hypercholesterolemia in Osteoarthritis. Front Med (Lausanne) 2020; 7:566250. [PMID: 33102504 PMCID: PMC7546767 DOI: 10.3389/fmed.2020.566250] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/28/2020] [Indexed: 11/13/2022] Open
Abstract
Objective: Several studies have linked metabolic syndrome to the development of osteoarthritis (OA) through hypercholesterolemia, one of its components. However, epidemiological studies showed contradictory results, and it is not clear how hypercholesterolemia itself, or oxidized LDL (oxLDL)-a pathological molecule potentially involved in this relationship-could be affecting OA. The objectives of this study were to investigate the effect of hypercholesterolemia induced by high-fat diet (HFD) in cartilage from OA rabbits, and how oxLDL affect human chondrocyte inflammatory and catabolic responses. Design: New Zealand rabbits were fed with HFD for 18 weeks. On week 6, OA was surgically induced. At the end of the study, cartilage damage and IL-1β, IL-6, MCP-1, MMP-13, and COX-2 expression in articular cartilage were evaluated. In addition, cultured human OA articular chondrocytes were treated with oxLDL at concentrations equivalent to those expected in synovial fluid from HFD rabbits, in the presence of IL-1β and TNFα. The effect of oxLDL on cell viability, nitric oxide production and catabolic and pro-inflammatory gene expression was evaluated. Results: HFD intake did not modify cartilage structure or pro-inflammatory and catabolic gene expression and protein presence, both in healthy and OA animals. OxLDL did not affect human chondrocyte viability, ADAMTS5 and liver X receptor (LXR) α gene expression, but decreased the induction of IL-1β, IL-6, MCP-1, MMP-13, iNOS, and COX-2 gene expression and MMP-13 and COX-2 protein presence, evoked by cytokines. Conclusions: Our data suggest that cholesterol intake per se may not be deleterious for articular cartilage. Instead, cholesterol de novo synthesis and altered cholesterol metabolism could be involved in the associations observed in human disease.
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Affiliation(s)
- Amanda Villalvilla
- Bone and Joint Research Unit, Instituto de Investigación Sanitaria Fundación Jiménez Diaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Ane Larrañaga-Vera
- Bone and Joint Research Unit, Instituto de Investigación Sanitaria Fundación Jiménez Diaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Ana Lamuedra
- Bone and Joint Research Unit, Instituto de Investigación Sanitaria Fundación Jiménez Diaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Sandra Pérez-Baos
- Bone and Joint Research Unit, Instituto de Investigación Sanitaria Fundación Jiménez Diaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Alberto G López-Reyes
- Bone and Joint Research Unit, Instituto de Investigación Sanitaria Fundación Jiménez Diaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain.,Geroscience Laboratory, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City, Mexico
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, Instituto de Investigación Sanitaria Fundación Jiménez Diaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Raquel Largo
- Bone and Joint Research Unit, Instituto de Investigación Sanitaria Fundación Jiménez Diaz (IIS-FJD), Universidad Autónoma de Madrid (UAM), Madrid, Spain
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30
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Gratal P, Lamuedra A, Medina JP, Bermejo-Álvarez I, Largo R, Herrero-Beaumont G, Mediero A. Purinergic System Signaling in Metainflammation-Associated Osteoarthritis. Front Med (Lausanne) 2020; 7:506. [PMID: 32984382 PMCID: PMC7485330 DOI: 10.3389/fmed.2020.00506] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/22/2020] [Indexed: 12/18/2022] Open
Abstract
Inflammation triggered by metabolic imbalance, also called metainflammation, is low-grade inflammation caused by the components involved in metabolic syndrome (MetS), including central obesity and impaired glucose tolerance. This phenomenon is mainly due to excess nutrients and energy, and it contributes to the pathogenesis of osteoarthritis (OA). OA is characterized by the progressive degeneration of articular cartilage, which suffers erosion and progressively becomes thinner. Purinergic signaling is involved in several physiological and pathological processes, such as cell proliferation in development and tissue regeneration, neurotransmission and inflammation. Adenosine and ATP receptors, and other members of the signaling pathway, such as AMP-activated protein kinase (AMPK), are involved in obesity, type 2 diabetes (T2D) and OA progression. In this review, we focus on purinergic regulation in osteoarthritic cartilage and how different components of MetS, such as obesity and T2D, modulate the purinergic system in OA. In that regard, we describe the critical role in this disease of receptors, such as adenosine A2A receptor (A2AR) and ATP P2X7 receptor. Finally, we also assess how nucleotides regulate the inflammasome in OA.
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Affiliation(s)
- Paula Gratal
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Ana Lamuedra
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Juan Pablo Medina
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | | | - Raquel Largo
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | | | - Aránzazu Mediero
- Bone and Joint Research Unit, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
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31
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Conesa-Buendía FM, Mediero A, Fujikawa R, Esbrit P, Mulero F, Mahillo-Fernández I, Mues AOD. Beneficial effects of manually assisted chiropractic adjusting instrument in a rabbit model of osteoarthritis. Sci Rep 2020; 10:13237. [PMID: 32764579 PMCID: PMC7413258 DOI: 10.1038/s41598-020-70219-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 07/20/2020] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a degenerative disease characterized by injury of all joint tissues. Our previous study showed that in experimental osteoporosis, chiropractic manipulation (CM) exerts protective effects on bone. We here assessed whether CM might ameliorate OA by improving subchondral bone sclerosis, cartilage integrity and synovitis. Male New-Zealand rabbits underwent knee surgery to induce OA by anterior cruciate ligament injury. CM was performed using the chiropractic instrument ActivatorV 3 times/week for 8 weeks as follows: force 2 setting was applied to the tibial tubercle of the rabbit right hind limb (TM-OA), whereas the corresponding left hind limb received a false manipulation (FM-OA) consisting of ActivatorV firing in the air and slightly touching the tibial tubercle. After sacrifice, subchondral bone integrity was assessed in the tibiae by microCT and histology. Cartilage damage and synovitis were estimated by Mankin's and Krenn's scores, respectively, and histological techniques. Bone mineral density and content in both cortical and trabecular compartments of subchondral bone decreased in OA rabbits compared to controls, but partially reversed in the TM-OA group. Trabecular bone parameters in the latter group also showed a significant improvement compared to FM-OA group. Moreover RANKL, OPG, ALP and TRAP protein expression in subchondral bone significantly decreased in TM-OA rabbits with respect to FM-OA group. CM was associated with lower Mankin's and Krenn's scores and macrophage infiltrate together with a decreased protein expression of pro-inflammatory, fibrotic and angiogenic factors, in TM-OA rabbits with respect to FM-OA. Our results suggest that CM may mitigate OA progression by improving subchondral bone as well as cartilage and synovial membrane status.
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Affiliation(s)
- F M Conesa-Buendía
- Bone and Joint Research Unit, Institute of Health Research (IIS-Fundación Jiménez Díaz), Madrid, Spain
| | - A Mediero
- Bone and Joint Research Unit, Institute of Health Research (IIS-Fundación Jiménez Díaz), Madrid, Spain
| | - R Fujikawa
- Madrid College of Chiropractic-Real Centro Universitario Escorial-María Cristina, Paseo de los Alamillos, 2, 28200, San Lorenzo de El Escorial, Madrid, Spain
| | - P Esbrit
- Bone and Joint Research Unit, Institute of Health Research (IIS-Fundación Jiménez Díaz), Madrid, Spain
| | - F Mulero
- Molecular Imaging Unit, Spanish National Cancer Research Center (CNIO), Madrid, Spain
| | - I Mahillo-Fernández
- Epidemiology and Biostatistics Unit (IIS-Fundación Jiménez Díaz), Madrid, Spain
| | - Arantxa Ortega-De Mues
- Madrid College of Chiropractic-Real Centro Universitario Escorial-María Cristina, Paseo de los Alamillos, 2, 28200, San Lorenzo de El Escorial, Madrid, Spain.
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32
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Disorganization of chondrocyte columns in the growth plate does not aggravate experimental osteoarthritis in mice. Sci Rep 2020; 10:10745. [PMID: 32612184 PMCID: PMC7329885 DOI: 10.1038/s41598-020-67518-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 06/09/2020] [Indexed: 12/24/2022] Open
Abstract
Osteoarthritis (OA) is a multifactorial joint disease mainly affecting articular cartilage (AC) with a relevant biomechanical component. During endochondral ossification growth plate (GP) chondrocytes arrange in columns. GPs do not ossify in skeletally mature rodents. In neonatal mice, an altered joint loading induces GP chondrocyte disorganization. We aimed to study whether experimental OA involves GP disorganization in adult mice and to assess if it may have additional detrimental effects on AC damage. Knee OA was induced by destabilization of the medial meniscus (DMM) in wild-type (WT) adult mice, and in Tamoxifen-inducible Ellis-van-Creveld syndrome protein (Evc) knockouts (EvccKO), used as a model of GP disorganization due to Hedgehog signalling disruption. Chondrocyte column arrangement was assessed in the tibial GP and expressed as Column Index (CI). Both DMM-operated WT mice and non-operated-EvccKO showed a decreased CI, indicating GP chondrocyte column disarrangement, although in the latter, it was not associated to AC damage. The most severe GP chondrocyte disorganization occurred in DMM-EvccKO mice, in comparison to the other groups. However, this altered GP structure in DMM-EvccKO mice did not exacerbate AC damage. Further studies are needed to confirm the lack of interference of GP alterations on the analysis of AC employing OA mice.
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33
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Wu CL, Harasymowicz NS, Klimak MA, Collins KH, Guilak F. The role of macrophages in osteoarthritis and cartilage repair. Osteoarthritis Cartilage 2020; 28:544-554. [PMID: 31926267 PMCID: PMC7214213 DOI: 10.1016/j.joca.2019.12.007] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/15/2019] [Accepted: 12/30/2019] [Indexed: 02/07/2023]
Abstract
Osteoarthritis (OA) is a family of degenerative diseases affecting multiple joint tissues. Despite the diverse etiology and pathogenesis of OA, increasing evidence suggests that macrophages can play a significant role in modulating joint inflammation, and thus OA severity, via various secreted mediators. Recent advances in next-generation sequencing technologies coupled with proteomic and epigenetic tools have greatly facilitated research to elucidate the embryonic origin of macrophages in various tissues including joint synovium. Furthermore, scientists have now begun to appreciate that macrophage polarization can span beyond the conventionally recognized binary states (i.e., pro-inflammatory M1-like vs anti-inflammatory M2-like) and may encompass a broad spectrum of phenotypes. Although the presence of these cells has been shown in multiple joint tissues, additional mechanistic studies are required to provide a comprehensive understanding of the precise role of these diverse macrophage populations in OA onset and progression. New approaches that can modulate macrophages into desired functional phenotypes may provide novel therapeutic strategies for preventing OA or enhancing cartilage repair and regeneration.
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Affiliation(s)
- C-L Wu
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - N S Harasymowicz
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - M A Klimak
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University, St. Louis, MO 63110, USA
| | - K H Collins
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - F Guilak
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University, St. Louis, MO 63110, USA.
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34
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Identifying effector molecules, cells, and cytokines of innate immunity in OA. Osteoarthritis Cartilage 2020; 28:532-543. [PMID: 32044352 DOI: 10.1016/j.joca.2020.01.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 02/06/2023]
Abstract
Inflammatory changes are observed in affected joints of osteoarthritis (OA) patients and are thought to be involved in the pathology that develops along OA progression. This narrative review provides an overview of the various cell types that are present in the joint during OA and which alarmins, cytokines, chemokines, growth factors, and other mediators they produce. Moreover, the involvement of more systemic processes like inflammaging and its associated cellular senescence in the context of OA are discussed.
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Chen L, Yao F, Wang T, Li G, Chen P, Bulsara M, Zheng JJY, Landao-Bassonga E, Firth M, Vasantharao P, Huang Y, Lorimer M, Graves S, Gao J, Carey-Smith R, Papadimitriou J, Zhang C, Wood D, Jones C, Zheng M. Horizontal fissuring at the osteochondral interface: a novel and unique pathological feature in patients with obesity-related osteoarthritis. Ann Rheum Dis 2020; 79:811-818. [PMID: 32269059 PMCID: PMC7286031 DOI: 10.1136/annrheumdis-2020-216942] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 01/05/2023]
Abstract
Objectives Obesity is a well-recognised risk factor for osteoarthritis (OA). Our aim is to characterise body mass index (BMI)-associated pathological changes in the osteochondral unit and determine if obesity is the major causal antecedent of early joint replacement in patients with OA. Methods We analysed the correlation between BMI and the age at which patients undergo total knee replacement (TKR) in 41 023 patients from the Australian Orthopaedic Association National Joint Replacement Registry. We then investigated the effect of BMI on pathological changes of the tibia plateau of knee joint in a representative subset of the registry. Results 57.58% of patients in Australia who had TKR were obese. Patients with overweight, obese class I & II or obese class III received a TKR 1.89, 4.48 and 8.08 years earlier than patients with normal weight, respectively. Microscopic examination revealed that horizontal fissuring at the osteochondral interface was the major pathological feature of obesity-related OA. The frequency of horizontal fissure was strongly associated with increased BMI in the predominant compartment. An increase in one unit of BMI (1 kg/m2) increased the odds of horizontal fissures by 14.7%. 84.4% of the horizontal fissures were attributable to obesity. Reduced cartilage degradation and alteration of subchondral bone microstructure were also associated with increased BMI. Conclusions The key pathological feature in OA patients with obesity is horizontal fissuring at the osteochondral unit interface. Obesity is strongly associated with a younger age of first TKR, which may be a result of horizontal fissures.
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Affiliation(s)
- Lianzhi Chen
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Felix Yao
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Tao Wang
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Guangyi Li
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Peilin Chen
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Max Bulsara
- Institute for Health Research, University of Notre Dame, Fremantle, Western Australia, Australia
| | - Jessica Jun Yi Zheng
- Department of Orthopaedic Surgery, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
| | - Euphemie Landao-Bassonga
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Marty Firth
- Centre for Applied Statistics, Department of Mathematics and Statistics, University of Western Australia, Perth, Western Australia, Australia
| | - Praveen Vasantharao
- Department of Orthopaedic Surgery, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Yigang Huang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Michelle Lorimer
- South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia
| | - Stephen Graves
- Australian Orthopaedic Association National Joint Replacement Registry, Adelaide, South Australia, Australia
| | - Junjie Gao
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Perron Institute for Neurological and Translational Science, Perth, Western Australia, Australia
| | - Richard Carey-Smith
- Department of Orthopaedic Surgery, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
| | - John Papadimitriou
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Pathwest Laboratories, Perth, Western Australia, Australia
| | - Changqing Zhang
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - David Wood
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Christopher Jones
- Medical School, Curtin University, Perth, Western Australia, Australia .,Department of Orthopaedic Surgery, Fiona Stanley Hospital Group, Perth, Western Australia, Australia
| | - Minghao Zheng
- Centre for Orthopaedic Research, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia .,Perron Institute for Neurological and Translational Science, Perth, Western Australia, Australia
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36
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Gao YH, Zhao CW, Liu B, Dong N, Ding L, Li YR, Liu JG, Feng W, Qi X, Jin XH. An update on the association between metabolic syndrome and osteoarthritis and on the potential role of leptin in osteoarthritis. Cytokine 2020; 129:155043. [PMID: 32078923 DOI: 10.1016/j.cyto.2020.155043] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/22/2020] [Accepted: 02/11/2020] [Indexed: 12/23/2022]
Abstract
Metabolic syndrome (MetS) has been associated with osteoarthritis (OA). Leptin, which is one of the markers of MetS, has been associated with OA pathophysiology. This study aimed to provide an update on the association between MetS and OA and on the potential role of leptin in OA. In this review, we summarized the current knowledge of the association between MetS and OA and updated the evidence on the potential role of leptin in OA. Clinical studies have investigated the epidemiologic association between MetS or its components and OA. Results suggested strong epidemiologic associations between MetS and OA, especially in the Asian population. Animal studies also indicated that metabolic dysregulation may lead to OA pathogenesis. The systemic role of MetS in OA pathophysiology is associated with obesity-related inflammation, the beneficial role of n-3 polyunsaturated fatty acids and deleterious role of cholesterol, physical inactivity, hypertension-induced subchondral ischemia, dyslipidemia-induced ectopic lipid deposition in chondrocytes, hyperglycemia-induced local effects of oxidative stress and advanced glycation end-products, low-grade systemic inflammation, and obesity-related adipokines by inducing the expression of proinflammtory factors. Leptin levels in serum/plasma and synovial fluid were associated with joint pain, radiographic progression, bone formation biomarkers, cartilage volume, knee OA incidence, and total joint arthroplasty in OA patients. Elevated leptin expression and increased effect of leptin on infrapatellar fat pad, synovium, articular cartilage, and bone were also involved in the pathogenesis of OA. Current knowledge indicates a convincing epidemiologic association between MetS and OA, especially in the Asian population. Animal studies have also shown that metabolic dysregulation may lead to OA pathogenesis. Accumulating evidence suggests that leptin may play a potential role in OA pathogenesis. Therefore, leptin and its receptor may be an emerging target for intervention in metabolic-associated OA.
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Affiliation(s)
- Yu-Hang Gao
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Cheng-Wu Zhao
- Department of Sports Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Bo Liu
- Department of Ultrasound, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Ning Dong
- Department of Pediatric Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Lu Ding
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Ye-Ran Li
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Jian-Guo Liu
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Wei Feng
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Xin Qi
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Xian-Hua Jin
- Department of Dermatology, The Second Hospital of Jilin University, Changchun, Jilin 130022, China.
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Blaker CL, Clarke EC, Little CB. Adding insult to injury: synergistic effect of combining risk-factors in models of post-traumatic osteoarthritis. Osteoarthritis Cartilage 2019; 27:1731-1734. [PMID: 31276817 DOI: 10.1016/j.joca.2019.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 06/25/2019] [Indexed: 02/02/2023]
Affiliation(s)
- C L Blaker
- Murray Maxwell Biomechanics Laboratory, St Leonards, NSW, Australia
| | - E C Clarke
- Murray Maxwell Biomechanics Laboratory, St Leonards, NSW, Australia
| | - C B Little
- Raymond Purves Bone and Joint Research Laboratory, Royal North Shore Hospital, Kolling Institute and Institute of Bone and Joint Research, University of Sydney, St Leonards, NSW, Australia.
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Xu X, Liu X, Yang Y, He J, Gu H, Jiang M, Huang Y, Liu X, Liu L. Resveratrol inhibits the development of obesity-related osteoarthritis via the TLR4 and PI3K/Akt signaling pathways. Connect Tissue Res 2019; 60:571-582. [PMID: 30922122 DOI: 10.1080/03008207.2019.1601187] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Aim of the study: Obesity leads to mild, chronic inflammation which is a primary risk factor for osteoarthritis (OA). Resveratrol exerts a protective effect on OA through its anti-inflammatory properties, but the precise mechanism remains unknown. The present study aimed to investigate the mechanism by which resveratrol alleviates obesity-related OA, and whether it is linked to the TLR4 and PI3K/Akt signaling pathways. Materials and methods: C57BL/6J male mice were fed a high-fat diet (HFD) with or without resveratrol treatment and knee joints were collected for analysis. In addition, IL-1β-induced SW1353 cells were used to study in vitro the reciprocal effects of TLR4 and PI3K/Akt pathways. Results: Resveratrol inhibited the development of OA in mice fed a HFD. TLR4 and PI3K/Akt signaling pathways were both activated in the articular cartilage; resveratrol treatment down-regulated TLR4 but up-regulated PI3K/Akt signaling. Further in vitro results showed that the effect of resveratrol alone on activation of PI3K/Akt was attenuated but not abolished by the TLR4 inhibitor CLI-095, and resveratrol failed to reduce TLR4 protein expression in IL-1β stimulated cells pretreated with the PI3K inhibitor LY294002. Conclusions: Resveratrol may exert an anti-osteoarthritic effect by inhibiting TLR4 via the activation of PI3K/Akt signaling pathways. Resveratrol has potential as a drug for OA prevention.
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Affiliation(s)
- Xiaolei Xu
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China.,Department of Nutrition and Food Hygiene, School of Public Health, Beihua University , Jilin , China
| | - Xudan Liu
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China
| | - Yingchun Yang
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China
| | - Jianyi He
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China
| | - Hailun Gu
- Department of Orthopedics, Shengjing Hospital, China Medical University , Shenyang , China
| | - Mengqi Jiang
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China
| | - Yue Huang
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China
| | - Xiaotong Liu
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China
| | - Li Liu
- Department of Nutrition and Food Hygiene, School of Public Health, China Medical University , Shenyang , China
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Liu B, Gao YH, Dong N, Zhao CW, Huang YF, Liu JG, Qi X. Differential expression of adipokines in the synovium and infrapatellar fat pad of osteoarthritis patients with and without metabolic syndrome. Connect Tissue Res 2019; 60:611-618. [PMID: 31137976 DOI: 10.1080/03008207.2019.1620221] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Objective: To evaluate the expression levels of adipokines in the synovium and infrapatellar fat pad (IPFP) in osteoarthritis (OA) patients with and without metabolic syndrome (MetS). Methods: 120 female patients with OA were enrolled, and 60 healthy women matched body mass index, age, and sex, served as controls. Adipokines levels were measured using a sandwich enzyme-linked immunosorbent assay of the serum of all participants and synovial fluid (SF) of OA patients. Local expression levels of adipokines in the synovium and IPFP were examined by immunohistochemical analysis. The amount of adipokine proteins was analyzed using Western blot, and adipokine mRNA expressions were determined via quantitative real-time polymerase chain reaction (qRT-PCR). Results: Serum leptin levels were significantly higher in the non-MetS-OA group than those in controls (7.97 vs. 4.24 ng/ml, p< 0.001), and even higher leptin levels were found in the MetS-OA group (19.05 ng/ml; p< 0.001 for both). Serum adiponectin levels were significantly lower in the MetS-OA group than those in controls (8.09 vs. 10.07 μg/ml, respectively; p= 0.001). The synovium and IPFP in the MetS-OA group secreted more leptin and less adiponectin than those in the non-MetS-OA group (Leptin: 5.32 vs. 1.28 in synovium, respectively; p= 0.028; 6.44 vs. 0.88 in IPFP, respectively; p= 0.017. Adiponectin: 1.12 vs. 0.12 in synovium, respectively; p= 0.042; 1.07 vs. 0.09 in IPFP, respectively; p= 0.027). Resistin expression levels in the serum, SF, and articular tissues were similar among the groups. Conclusions: Expressions of adipokines were different in the synovium and IPFP of OA patients with and without MetS.
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Affiliation(s)
- Bo Liu
- Department of Orthopaedic Surgery, The First Hospital of Jilin University , Changchun , Jilin , China
| | - Yu-Hang Gao
- Department of Orthopaedic Surgery, The First Hospital of Jilin University , Changchun , Jilin , China
| | - Ning Dong
- Department of Orthopaedic Surgery, The First Hospital of Jilin University , Changchun , Jilin , China
| | - Cheng-Wu Zhao
- Department of Sport Medicine, The First Hospital of Jilin University , Changchun , Jilin , China
| | - Yi-Fan Huang
- Department of Orthopaedic Surgery, The First Hospital of Jilin University , Changchun , Jilin , China
| | - Jian-Guo Liu
- Department of Orthopaedic Surgery, The First Hospital of Jilin University , Changchun , Jilin , China
| | - Xin Qi
- Department of Orthopaedic Surgery, The First Hospital of Jilin University , Changchun , Jilin , China
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40
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Gut microbiota and obesity-associated osteoarthritis. Osteoarthritis Cartilage 2019; 27:1257-1265. [PMID: 31146016 DOI: 10.1016/j.joca.2019.05.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 05/16/2019] [Accepted: 05/18/2019] [Indexed: 02/02/2023]
Abstract
Obesity is a well-known primary risk factor for osteoarthritis (OA). In recent decades, the biomechanics-based theoretical paradigm for the pathogenesis of obesity-associated OA has been gradually but fundamentally modified. This modification is a result of accumulating evidence that biological factors also contribute to the etiology of the disease. The gut microbiota is a complicated ecosystem that profoundly influences the health of the host and can be modulated by the combined effects of environmental stimuli and genetic factors. Recently, enteric dysbacteriosis has been identified as a causal factor in the initiation and propagation of obesity-associated OA in animal models. Gut microbes and their components, microbe-associated lipid metabolites, and OA interact at both systemic and local levels through mechanisms that involve interplay with the innate immune system. However, the demonstration of causality in humans will require further studies. Nonetheless, probiotics, prebiotics, dietary habits and exercise, which aid the restoration of a healthy microbial community, are potential therapeutic approaches in the treatment of obesity-associated OA.
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41
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Herrero-Beaumont G, Pérez-Baos S, Sánchez-Pernaute O, Roman-Blas JA, Lamuedra A, Largo R. Targeting chronic innate inflammatory pathways, the main road to prevention of osteoarthritis progression. Biochem Pharmacol 2019; 165:24-32. [PMID: 30825432 DOI: 10.1016/j.bcp.2019.02.030] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 02/26/2019] [Indexed: 12/15/2022]
Abstract
Osteoarthritis (OA) is a chronic joint disease characterized by cartilage degradation, osteophyte formation, subchondral bone sclerosis, and synovitis. Systemic factors such as obesity and the components of the metabolic syndrome seem to contribute to its progression. Breakdown of cartilage ensues from an altered balance between mechanical overload and its absorption by this tissue. There is in this context a status of persistent local inflammation by means of the chronic activation of innate immunity. A broad variety of danger-associated molecular patterns inside OA joint are able to activate pattern recognition receptors, mainly TLR (toll-like receptor) 2 and 4, which are overexpressed in the OA cartilage. Chronic activation of innate immune responses in chondrocytes results in a robust production of pro-inflammatory cytokines and chemokines, as well as of tissue-destructive enzymes, downstream of NF-κB and MAPK (mitogen activated protein kinase) dependent pathways. Besides, the toxic effects of an excess of glucose and/or fatty acids, which share the same pro-inflammatory intracellular signalling pathways, may add fuel to the fire. Not only high concentrations of glucose can render cells prone to inflammation, but also AGEs (advanced glycation end products) are integrated into the TLR signalling network through their own innate immune receptors. Considering these mechanisms, we argue for the control of both primary inflammation and proteolytic catabolism as a preventive strategy in OA, instead of focusing treatment on the enhancement of anabolic responses. Even though this approach would not return to normal already degraded cartilage, it nonetheless might avoid damage extension to the surrounding tissue.
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Affiliation(s)
| | - Sandra Pérez-Baos
- Joint and Bone Research Unit, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain
| | | | - Jorge A Roman-Blas
- Joint and Bone Research Unit, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain
| | - Ana Lamuedra
- Joint and Bone Research Unit, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain
| | - Raquel Largo
- Joint and Bone Research Unit, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain.
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42
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Sun AR, Wu X, Liu B, Chen Y, Armitage CW, Kollipara A, Crawford R, Beagley KW, Mao X, Xiao Y, Prasadam I. Pro-resolving lipid mediator ameliorates obesity induced osteoarthritis by regulating synovial macrophage polarisation. Sci Rep 2019; 9:426. [PMID: 30674985 PMCID: PMC6344566 DOI: 10.1038/s41598-018-36909-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 10/18/2018] [Indexed: 12/17/2022] Open
Abstract
Non-resolved persistent macrophage-mediated synovial inflammation is considered as one of the main drivers of both the establishment and progression of obesity-associated osteoarthritis (OA). Herein, we used clodronate-loaded liposomes (CL) to locally deplete macrophages in the synovial joints to examine the role of macrophages in the progression of obesity-induced OA. Furthermore, resolvin D1 (RvD1), a unique family of pro-resolving lipid mediator derived from the omega-3 polyunsaturated fatty acid, have shown marked potency in changing the pro-inflammatory behaviour of the macrophages. We sought to determine whether RvD1 administration ameliorates obesity-induced OA by resolving macrophage-mediated synovitis. Therapeutic properties of RvD1 and macrophage depletion (CL) were tested for its ability to slow post-traumatic OA (PTOA) in obese mice models. PTOA was induced in C57Bl/6 mice fed with high-fat diet (HFD) by surgically destabilising the meniscus. Firstly, CL treatment showed beneficial effects in reducing synovitis and cartilage destruction in obese mice with PTOA. In vitro treatment with RvD1 decreased the levels of pro-inflammatory markers in CD14+ human macrophages. Furthermore, intra-articular treatment with RvD1 diminishes the progression of OA in the knee joint from mice as follows: (a) decreases macrophages infiltration in synovium, (b) reduces the number of pro-inflammatory macrophages in synovium and (c) improves the severity of synovitis and cartilage degradation. Thus, our results provide new evidence for the potential targeting of macrophages in the treatment of obesity-induced OA.
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Affiliation(s)
- Antonia Rujia Sun
- Institute of Health and Biomedical Innovation, Faculty of Science and Engineering, Queensland University of Technology, Brisbane, 4059, Australia
| | - Xiaoxin Wu
- Department of Orthopaedic Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Bohao Liu
- Department of Orthopaedic Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yang Chen
- Department of Orthopaedic Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Charles W Armitage
- Institute of Health and Biomedical Innovation, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Avinash Kollipara
- Institute of Health and Biomedical Innovation, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia.,Department of Pediatrics, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - Ross Crawford
- Institute of Health and Biomedical Innovation, Faculty of Science and Engineering, Queensland University of Technology, Brisbane, 4059, Australia.,The Prince Charles Hospital, Orthopedic Department, Brisbane, Australia
| | - Kenneth W Beagley
- Institute of Health and Biomedical Innovation, Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Xinzhan Mao
- Department of Orthopaedic Surgery, Second Xiangya Hospital, Central South University, Changsha, China.
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, Faculty of Science and Engineering, Queensland University of Technology, Brisbane, 4059, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Indira Prasadam
- Institute of Health and Biomedical Innovation, Faculty of Science and Engineering, Queensland University of Technology, Brisbane, 4059, Australia. .,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Queensland, Australia.
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43
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Chang J, Liao Z, Lu M, Meng T, Han W, Ding C. Systemic and local adipose tissue in knee osteoarthritis. Osteoarthritis Cartilage 2018; 26:864-871. [PMID: 29578044 DOI: 10.1016/j.joca.2018.03.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 02/28/2018] [Accepted: 03/15/2018] [Indexed: 02/08/2023]
Abstract
Knee osteoarthritis (OA) is the most common joint disease. Body adipose tissue has been shown to be related to the development and progression of knee OA. Among systemic adipose tissues, subcutaneous adipose tissue is significantly and negatively associated with muscle mass and forces, and could be related to the presence and progression of knee OA. Visceral adipose tissue is associated with increased cartilage loss and production of pro-inflammatory cytokines. Intra-muscular adipose tissue is associated with knee osteoarthritic changes, but it remains controversial if inter-muscular adipose tissue has a role to play in the pathogenesis for knee OA. Knee local adipose tissue such as infrapatellar fat pad (IPFP) can interact with neighbouring tissues, and may have a biphasic effect in knee OA. The underlying mechanisms for the roles of the systemic and local fat in knee OA could be related to biomechanical, metabolic, inflammatory factors and fat fibrosis, which may have a separated or combined effect on OA. Tissue engineering from systemic or local adipose tissue is a new research direction, and adipose tissue-derived stem cells from systemic or local adipose tissue may be beneficial for OA cartilage repair. Research on systemic and local adipose tissue would provide novel approaches for prevention and treatment of knee OA, but further studies are required to explore the roles of different adipose tissues in knee OA and the effects of stem cells derived from different adipose tissues on knee OA.
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Affiliation(s)
- J Chang
- Department of Orthopaedics, 4th Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Z Liao
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Rheumatology and Immunology Division, 3rd Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - M Lu
- Department of Orthopaedics, 1st Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China
| | - T Meng
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - W Han
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - C Ding
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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