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Farrag Y, Farrag M, Varela-García M, Torrijos-Pulpón C, Capuozzo M, Ottaiano A, Lago F, Mera A, Pino J, Gualillo O. Adipokines as potential pharmacological targets for immune inflammatory rheumatic diseases: Focus on rheumatoid arthritis, osteoarthritis, and intervertebral disc degeneration. Pharmacol Res 2024; 205:107219. [PMID: 38763327 DOI: 10.1016/j.phrs.2024.107219] [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: 04/02/2024] [Revised: 05/16/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
Adipokines are a heterogeneous group of signalling molecules secreted prevalently by adipose tissue. Initially considered as regulators of energy metabolism and appetite, adipokines have been recognized for their substantial involvement in musculoskeletal disorders, including osteoarthritis, rheumatoid arthritis, and many others. Understanding the role of adipokines in rheumatic inflammatory and autoimmune diseases, as well as in other musculoskeletal diseases such as intervertebral disc degeneration, is crucial for the development of novel therapeutic strategies. Targeting adipokines, or their signalling pathways, may offer new opportunities for the treatment and management of these conditions. By modulating adipokines levels or activity, it may be possible to regulate inflammation, to maintain bone health, and preserve muscle mass, thereby improving the outcomes and quality of life for individuals affected by musculoskeletal diseases. The aim of this review article is to update the reader on the multifaceted role of adipokines in the main rheumatic diseases such as osteoarthritis and rheumatoid arthritis and to unravel the complex interplay among adipokines, cartilage metabolism, bone remodelling and muscles, which will pave the way for innovative therapeutic intervention in the future. For completeness, the role of adipokines in intervertebral disc degeneration will be also addressed.
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Affiliation(s)
- Yousof Farrag
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana SIN, Santiago de Compostela 15706, Spain.
| | - Mariam Farrag
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana SIN, Santiago de Compostela 15706, Spain.
| | - María Varela-García
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana SIN, Santiago de Compostela 15706, Spain.
| | - Carlos Torrijos-Pulpón
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana SIN, Santiago de Compostela 15706, Spain.
| | - Maurizio Capuozzo
- Pharmaceutical Department, ASL-Napoli-3 Sud, Via Marittima 3, Ercolano 80056, Italy.
| | - Alessando Ottaiano
- Istituto Nazionale Tumori di Napoli, IRCCS "G. Pascale", Via M. Semmola, Naples 80131, Italy.
| | - Francisca Lago
- Molecular and Cellular Cardiology Group, SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), Research Laboratory 7, Santiago University Clinical Hospital, Santiago de Compostela 15706, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain.
| | - Antonio Mera
- SERGAS, Servizo Galego de Saude, Santiago University Clinical Hospital, Division of Rheumatology, Santiago de Compostela 15706, Spain.
| | - Jesus Pino
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana SIN, Santiago de Compostela 15706, Spain; International PhD School, University of Santiago de Compostela (EDIUS), Santiago de Compostela 15706, Spain; University of Santiago de Compostela, Department of Surgery and Medical Surgical Specialties, Santiago University Clinical Hospital, Trav. Choupana s/n, 15706, Santiago de Compostela, Spain.
| | - Oreste Gualillo
- SERGAS (Servizo Galego de Saude) and IDIS (Instituto de Investigación Sanitaria de Santiago), The NEIRID Group (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Santiago University Clinical Hospital, Building C, Travesía da Choupana SIN, Santiago de Compostela 15706, Spain; International PhD School, University of Santiago de Compostela (EDIUS), Santiago de Compostela 15706, Spain.
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Zhang C, Lin Y, Li H, Hu H, Chen Y, Huang Y, Huang Z, Fang X, Zhang W, Lin Y. Fatty acid binding protein 4 (FABP4) induces chondrocyte degeneration via activation of the NF-κb signaling pathway. FASEB J 2024; 38:e23347. [PMID: 38095503 DOI: 10.1096/fj.202301882r] [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: 09/14/2023] [Revised: 10/28/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023]
Abstract
The pathogenesis of osteoarthritis (OA) is still unclear. Fatty acid binding protein 4 (FABP4), a novel adipokine, has been found to play a role in OA. This study aimed to explore the role of NF-κB in FABP4-induced OA. In the in vivo study, four pairs of 12-week-old male FABP4 knockout (KO) and wild-type (WT) mice were included. The activation of NF-κB was assessed. In parallel, 24 6-week-old male C57/Bl6 mice were fed a high-fat diet (HFD) and randomly allocated to four groups: daily oral gavage with (1) PBS solution; (2) QNZ (NF-κB-specific inhibitor, 1 mg/kg/d); (3) BMS309403 (FABP4-specific inhibitor, 30 mg/kg/d); and (4) BMS309403 (30 mg/kg/d) + QNZ (1 mg/kg/d). The diet and treatment were sustained for 4 months. The knee joints were obtained to assess cartilage degradation, NF-κB activation, and subchondral bone sclerosis. In the in vitro study, a mouse chondrogenic cell line (ATDC5) was cultured. FABP4 was supplemented to stimulate chondrocytes, and the activation of NF-κB was investigated. In parallel, QNZ and NF-κB-specific siRNA were used to inhibit NF-κB. In vivo, the FABP4 WT mice had more significant NF-κB activation than the KO mice. Dual inhibition of FABP4 and NF-κB alleviated knee OA in mice. FABP4 has no significant effect on the activation of the JNK signaling pathway. In vitro, FABP4 directly activated NF-κB in chondrocytes. The use of QNZ and NF-κB-siRNA significantly alleviated the expression of catabolic markers of chondrocytes induced by FABP4. FABP4 induces chondrocyte degeneration by activating the NF-κB pathway.
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Affiliation(s)
- Chaofan Zhang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yiming Lin
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Hongyan Li
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Hongxin Hu
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopedic Surgery, Affiliated Hospital of Putian University, Putian, China
| | - Yongfa Chen
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Pediatric Orthopaedic Surgery, the First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Ying Huang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Zida Huang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Xinyu Fang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Wenming Zhang
- Department of Orthopaedic Surgery, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Orthopaedic Surgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Fujian Provincial Institute of Orthopedics, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Yunzhi Lin
- Department of Stomatology, the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
- Department of Stomatology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, China
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Rocchetti MT, Bizzoca D, Moretti L, Ragni E, Moretti FL, Vicenti G, Solarino G, Rizzello A, Petruzzella V, Palese LL, Scacco S, Banfi G, Moretti B, Gnoni A. A Gel-Based Proteomic Analysis Reveals Synovial α-Enolase and Fibrinogen β-Chain Dysregulation in Knee Osteoarthritis: A Controlled Trial. J Pers Med 2023; 13:916. [PMID: 37373906 PMCID: PMC10305339 DOI: 10.3390/jpm13060916] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/28/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND The identification of synovial fluid (SF) biomarkers that could anticipate the diagnosis of osteoarthritis (OA) is gaining increasing importance in orthopaedic clinical practice. This controlled trial aims to assess the differences between the SF proteome of patients affected by severe OA undergoing Total Knee Replacement (TKR) compared to control subjects (i.e., subjects younger than 35, undergoing knee arthroscopy for acute meniscus injury). METHODS The synovial samples were collected from patients with Kellgren Lawrence grade 3 and 4 knee osteoarthritis undergoing THR (study group) and young patients with meniscal tears and no OA signs undergoing arthroscopic surgery (control group). The samples were processed and analyzed following the protocol defined in our previous study. All of the patients underwent clinical evaluation using the International Knee Documentation Committee (IKDC) subjective knee evaluation (main outcome), Knee Society Clinical Rating System (KSS), Knee injury and Osteoarthritis Outcome Score (KOOS), and Visual Analogue Scale (VAS) for pain. The drugs' assumptions and comorbidities were recorded. All patients underwent preoperative serial blood tests, including complete blood count and C-Reactive Protein (CRP). RESULTS The synovial samples' analysis showed a significantly different fibrinogen beta chain (FBG) and alpha-enolase 1 (ENO1) concentration in OA compared to the control samples. A significant correlation between clinical scores, FBG, and ENO1 concentration was observed in osteoarthritic patients. CONCLUSIONS Synovial fluid FBG and ENO1 concentrations are significantly different in patients affected by knee OA compared with non-OA subjects.
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Affiliation(s)
- Maria Teresa Rocchetti
- Department of Clinical and Experimental Medicine, University of Foggia, Via Pinto 1, 71122 Foggia, Italy
| | - Davide Bizzoca
- Orthopaedics Unit-UOSD Vertebral Surgery, DAI Neuroscience, Sense Organs and Locomotor System, AOU Consorziale Policlinico, 70124 Bari, Italy
- PhD Course in Public Health, Clinical Medicine and Oncology, DiMePre-J, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Lorenzo Moretti
- Orthopaedics Unit-UOSD Vertebral Surgery, DAI Neuroscience, Sense Organs and Locomotor System, AOU Consorziale Policlinico, 70124 Bari, Italy
| | - Enrico Ragni
- IRCCS Istituto Ortopedico Galeazzi, Laboratorio di Biotecnologie Applicate all'Ortopedia, Via R. Galeazzi 4, 20161 Milano, Italy
| | - Francesco Luca Moretti
- IRCCS Istituto Ortopedico Galeazzi, Laboratorio di Biotecnologie Applicate all'Ortopedia, Via R. Galeazzi 4, 20161 Milano, Italy
- National Centre for Chemicals, Cosmetic Products and Consumer Protection, National Institute of Health, 00161 Rome, Italy
| | - Giovanni Vicenti
- Orthopaedics Unit-UOSD Vertebral Surgery, DAI Neuroscience, Sense Organs and Locomotor System, AOU Consorziale Policlinico, 70124 Bari, Italy
| | - Giuseppe Solarino
- Orthopaedics Unit-UOSD Vertebral Surgery, DAI Neuroscience, Sense Organs and Locomotor System, AOU Consorziale Policlinico, 70124 Bari, Italy
| | - Alessandro Rizzello
- Clinical Biochemistry, DiBraiN, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Vittoria Petruzzella
- Clinical Biochemistry, DiBraiN, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Luigi Leonardo Palese
- Clinical Biochemistry, DiBraiN, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Salvatore Scacco
- Clinical Biochemistry, DiBraiN, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
| | - Giuseppe Banfi
- IRCCS Galeazzi-Sant'Ambrogio, Via Cristina Belgioioso 173, 20157 Milano, Italy
- Faculty of Medicine, Università Vita-Salute San Raffaele, Via Olgettina 58, 20132 Milano, Italy
| | - Biagio Moretti
- Orthopaedics Unit-UOSD Vertebral Surgery, DAI Neuroscience, Sense Organs and Locomotor System, AOU Consorziale Policlinico, 70124 Bari, Italy
| | - Antonio Gnoni
- Clinical Biochemistry, DiBraiN, School of Medicine, University of Bari "Aldo Moro", 70124 Bari, Italy
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Zhu Z, Tang T, Pan S, Sun Z, Huang C, Ruan R, He Z, Liu S, Zheng X, Guo K. Effect of knee joint weight change on knee function recovery and gait after total knee arthroplasty. BMC Musculoskelet Disord 2022; 23:694. [PMID: 35869453 PMCID: PMC9306069 DOI: 10.1186/s12891-022-05647-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 07/13/2022] [Indexed: 11/10/2022] Open
Abstract
Background Knee osteoarthritis (KOA) is a common disease based on degenerative pathological changes. Total knee arthroplasty (TKA) is an effective treatment for end-stage of KOA. However, only volume adaptation can be achieved with current knee prostheses, and it is difficult to achieve weight adaptation. This study focused on the weight difference of knee joints and initially explored the impact of this change on knee joint functional recovery and gait changes in patients after surgery. Methods From October 2015 to June 2019, patients who underwent primary unilateral TKA were enrolled in this prospective cohort study with the same brand of knee prostheses. General data were collected from patients who met the criteria. The resected bone and soft tissues were collected and weighed precisely during TKA, and multivariate regression analysis was used to determine the factors affecting the weight of the removed knee tissues. We compared the weight of excised tissues and the total weight of the knee prosthesis, and the weight difference was defined as the increased weight of the knee joint (IWKJ). All patients were evaluated by HSS score, gait analysis, and affected side knee X-ray at two weeks, three months, and the last follow-up after the operation. To further determine the influence of IWKJ on postoperative functional recovery, the relationship between IWKJ, HSS score, and gait analysis was analyzed by univariate regression. Results In total, 210 patients were eventually included in observation. All patients underwent postoperative follow-up for no less than two years. Multiple regression analysis showed that the course of the disease, body weight, and kellgren-Larencen stage(K-L stage)of the affected knee joint were independent factors affecting the weight of the removed knee tissues and were positively correlated with it. Univariate analysis showed that IWKJ was negatively correlated with HSS score at two weeks and three months after the operation. In addition, the values of spatiotemporal parameters and knee rotation ROM were negatively correlated with IWKJ two weeks after surgery, while outside food load response was positively correlated with IWKJ. Cadence, knee rotation ROM, and Ankle rotation ROM were negatively correlated with IWKJ, while outside food was positively correlated with IWKJ three months after surgery. At the last follow-up, only the hip rotation ROM was positively correlated with IWKJ. Conclusions All Patients underwent TKA had varying degrees of increased knee weight. The increased weight was 298.98 ± 63.77 g. Patients' body weight, K-L staging, and disease duration are important factors that cause differences in resected knee tissue. Three months after the operation, the changes in knee joint weight had a negative correlation with the HSS score, which at the same time, it had varying degrees of linearity with gait parameters. However, the influence of weight diminished over time.
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Liu S, Wu D, Fan Z, Yang J, Li Y, Meng Y, Gao C, Zhan H. FABP4 in obesity-associated carcinogenesis: Novel insights into mechanisms and therapeutic implications. Front Mol Biosci 2022; 9:973955. [PMID: 36060264 PMCID: PMC9438896 DOI: 10.3389/fmolb.2022.973955] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/25/2022] [Indexed: 11/23/2022] Open
Abstract
The increasing prevalence of obesity worldwide is associated with an increased risk of various diseases, including multiple metabolic diseases, cardiovascular diseases, and malignant tumors. Fatty acid binding proteins (FABPs) are members of the adipokine family of multifunctional proteins that are related to fatty acid metabolism and are divided into 12 types according to their tissue origin. FABP4 is mainly secreted by adipocytes and macrophages. Under obesity, the synthesis of FABP4 increases, and the FABP4 content is higher not only in tissues but also in the blood, which promotes the occurrence and development of various cancers. Here, we comprehensively investigated obesity epidemiology and the biological mechanisms associated with the functions of FABP4 that may explain this effect. In this review, we explore the molecular mechanisms by which FABP4 promotes carcinoma development and the interaction between fat and cancer cells in obese circumstances here. This review leads us to understand how FABP4 signaling is involved in obesity-associated tumors, which could increase the potential for advancing novel therapeutic strategies and molecular targets for the systematic treatment of malignant tumors.
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Afzali MF, Radakovich LB, Sykes MM, Campbell MA, Patton KM, Sanford JL, Vigon N, Ek R, Narez GE, Marolf AJ, Sikes KJ, Haut Donahue TL, Santangelo KS. Early removal of the infrapatellar fat pad/synovium complex beneficially alters the pathogenesis of moderate stage idiopathic knee osteoarthritis in male Dunkin Hartley guinea pigs. Arthritis Res Ther 2022; 24:282. [PMID: 36578046 PMCID: PMC9795160 DOI: 10.1186/s13075-022-02971-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/02/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The infrapatellar fat pad (IFP) is the largest adipose deposit in the knee; however, its contributions to the homeostasis of this organ remain undefined. To determine the influence of the IFP and its associated synovium (IFP/synovium complex or IFP/SC) on joint health, this study evaluated the progression of osteoarthritis (OA) following excision of this unit in a rodent model of naturally-occurring disease. METHODS Male Dunkin-Hartley guinea pigs (n=18) received surgical removal of the IFP in one knee at 3 months of age; contralateral knees received sham surgery as matched internal controls. Mobility and gait assessments were performed prior to IFP/SC removal and monthly thereafter. Animals were harvested at 7 months of age. Ten set of these knees were processed for microcomputed tomography (microCT), histopathology, transcript expression analyses, and immunohistochemistry (IHC); 8 sets of knees were dedicated to microCT and biomechanical testing (material properties of knee joints tissues and anterior drawer laxity). RESULTS Fibrous connective tissue (FCT) developed in place of the native adipose depot. Gait demonstrated no significant differences between IFP/SC removal and contralateral hindlimbs. MicroCT OA scores were improved in knees containing the FCT. Quantitatively, IFP/SC-containing knees had more osteophyte development and increased trabecular volume bone mineral density (vBMD) in femora and tibiae. Histopathology confirmed maintenance of articular cartilage structure, proteoglycan content, and chondrocyte cellularity in FCT-containing knees. Transcript analyses revealed decreased expression of adipose-related molecules and select inflammatory mediators in FCTs compared to IFP/SCs. This was verified via IHC for two key inflammatory agents. The medial articular cartilage in knees with native IFP/SCs showed an increase in equilibrium modulus, which correlated with increased amounts of magnesium and phosphorus. DISCUSSION/CONCLUSION Formation of the FCT resulted in reduced OA-associated changes in both bone and cartilage. This benefit may be associated with: a decrease in inflammatory mediators at transcript and protein levels; and/or improved biomechanical properties. Thus, the IFP/SC may play a role in the pathogenesis of knee OA in this strain, with removal prior to disease onset appearing to have short-term benefits.
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Affiliation(s)
- Maryam F. Afzali
- grid.47894.360000 0004 1936 8083Department of Microbiology, Immunology and Pathology, Colorado State University, 200 West Lake Street, Fort Collins, CO 80523 USA
| | - Lauren B. Radakovich
- grid.47894.360000 0004 1936 8083Department of Microbiology, Immunology and Pathology, Colorado State University, 200 West Lake Street, Fort Collins, CO 80523 USA
| | - Madeline M. Sykes
- grid.47894.360000 0004 1936 8083Department of Microbiology, Immunology and Pathology, Colorado State University, 200 West Lake Street, Fort Collins, CO 80523 USA
| | - Margaret A. Campbell
- grid.47894.360000 0004 1936 8083Department of Microbiology, Immunology and Pathology, Colorado State University, 200 West Lake Street, Fort Collins, CO 80523 USA
| | - Kayley M. Patton
- grid.47894.360000 0004 1936 8083Department of Microbiology, Immunology and Pathology, Colorado State University, 200 West Lake Street, Fort Collins, CO 80523 USA
| | - Joseph L. Sanford
- grid.47894.360000 0004 1936 8083Department of Microbiology, Immunology and Pathology, Colorado State University, 200 West Lake Street, Fort Collins, CO 80523 USA
| | - Nicole Vigon
- grid.266683.f0000 0001 2166 5835Department of Biomedical Engineering, S631 Life Sciences Laboratory, University of Massachusetts, Amherst, 240 Thatcher Road, Amherst, MA 01003 USA
| | - Ryan Ek
- grid.266683.f0000 0001 2166 5835Department of Biomedical Engineering, S631 Life Sciences Laboratory, University of Massachusetts, Amherst, 240 Thatcher Road, Amherst, MA 01003 USA
| | - Gerardo E. Narez
- grid.266683.f0000 0001 2166 5835Department of Biomedical Engineering, S631 Life Sciences Laboratory, University of Massachusetts, Amherst, 240 Thatcher Road, Amherst, MA 01003 USA
| | - Angela J. Marolf
- grid.47894.360000 0004 1936 8083Department of Environmental and Radiological Health Sciences, Colorado State University, 123 Flint Cancer Center, Fort Collins, CO 80523 USA
| | - Katie J. Sikes
- grid.47894.360000 0004 1936 8083Department of Clinical Sciences, Colorado State University, 1678 Clinical Sciences, Fort Collins, CO 80523 USA
| | - Tammy L. Haut Donahue
- grid.56061.340000 0000 9560 654XBiomedical Engineering Department, The University of Memphis, 3806 Norriswood, Memphis, TN 38152 USA
| | - Kelly S. Santangelo
- grid.47894.360000 0004 1936 8083Department of Microbiology, Immunology and Pathology, Colorado State University, 200 West Lake Street, Fort Collins, CO 80523 USA
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Mao H, Han B, Li H, Tao Y, Wu W. FABP4 knockdown suppresses inflammation, apoptosis and extracellular matrix degradation in IL-1β-induced chondrocytes by activating PPARγ to regulate the NF-κB signaling pathway. Mol Med Rep 2021; 24:855. [PMID: 34651666 PMCID: PMC8532115 DOI: 10.3892/mmr.2021.12495] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/15/2021] [Indexed: 01/24/2023] Open
Abstract
Osteoarthritis (OA) is a common degenerative disease that can lead to severe joint pain and loss of function, seriously threatening the health and normal life of patients. At present, the pathogenesis of OA remains to be clarified. Recent studies have shown that fatty acid-binding protein 4 (FABP4) is increased in the plasma and synovial fluid of patients with OA. However, the effect of FABP4 on OA is unclear. The present study established IL-1β-induced ATDC5 cells with FABP4 knockdown. Next, cell viability was detected with Cell Counting Kit-8 assay. The content of inflammatory factors, prostaglandin E2 and glycosaminoglycan (GAG) was detected via ELISA. The levels of reactive oxygen species (ROS) and superoxide dismutase (SOD) in cells were detected by using ROS and SOD kits, respectively. TUNEL staining was used to detect the apoptosis level. Western blotting was used to detect the expression levels of proteins. The results revealed that FABP4 was upregulated in IL-1β-induced ATDC5 cells. Knockdown of FABP4 increased cell viability, reduced inflammatory damage, oxidative stress and apoptosis in IL-1β-induced ATDC5 cells. Following FABP4 knockdown, the expression of matrix metalloproteinases (MMP3, MMP9 and MMP13) of IL-1β-induced ATDC5 cells was reduced, and the expression of GAG was promoted. FABP4 knockdown also inhibited the expression of NF-κB p65 and enhanced peroxisome proliferator-activated receptor (PPAR)γ expression. However, the presence of PPARγ inhibitor blocked the aforementioned effects of FABP4 on IL-1β-induced ATDC5 cells. In conclusion, FABP4 knockdown suppressed the inflammation, oxidative stress, apoptosis and extracellular matrix degradation of IL-1β-induced chondrocytes by activating PPARγ to inhibit the NF-κB signaling pathway.
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Affiliation(s)
- Huajie Mao
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Bin Han
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Hao Li
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Yiqing Tao
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
| | - Weigang Wu
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, P.R. China
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