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Yang J, He J, Yang L. Advanced glycation end products impair the repair of injured tendon: a study in rats. BMC Musculoskelet Disord 2024; 25:700. [PMID: 39227794 PMCID: PMC11370031 DOI: 10.1186/s12891-024-07760-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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 08/05/2024] [Indexed: 09/05/2024] Open
Abstract
BACKGROUND The AGEs levels in tissues of diabetics and elderly tend to be higher than in normal individuals. This study aims to determine the effects of AGEs on Achilles tendon repair. MATERIALS AND METHODS Thirty-six male eight-week-old Sprague Dawley rats were selected in this study. The rats were randomly divided into two experimental groups and a control group after the transection of the Achilles tendon. During the tendon repair, the experimental groups were injected around the Achilles tendon with 350mmol/L (low dose group) and 1000mmol/L (high dose group) D-ribose 0.2 ml respectively to increase the AGEs level, while in the control group were given the same amount of PBS. The injections were given twice a week for six weeks. Collagen-I, TNF-α, and IL-6 expression in the healed Achilles tendon was assessed. Additionally, macroscopic, pathological, and biomechanical evaluations of Achilles tendon repair were conducted. RESULTS The repaired Achilles tendons in the high dose group showed severe swelling and distinctive adhesions. The histological score went up with the increase of the AGEs in the Achilles tendon (p<0.001). TNF- α and IL-6 in the Achilles tendon increased (p<0.001, p<0.001), and the production of collagen-I decreased with the accumulation of AGEs in the repaired Achilles tendon (p<0.001). The tensile strength of Achilles tendon in the high dose group was impaired significantly. CONCLUSION In current study, the compromised tendon repair model induced by AGEs was successfully established in rat. The study demonstrated that AGEs significantly impair Achilles tendon repair.
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Affiliation(s)
- Juan Yang
- Department of Geriatrics, Shanghai Fourth People's Hospital Affiliated to Tongji University, No.1279 Sanmen Road, Shanghai, 200434, China
| | - Jirui He
- The Second Clinical Medical College, Lanzhou University, No. 82 Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China.
| | - Ling Yang
- Department of Geriatrics, Shanghai Fourth People's Hospital Affiliated to Tongji University, No.1279 Sanmen Road, Shanghai, 200434, China.
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2
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Wang X, Liu Z, Deng S, Zhou J, Li X, Huang J, Chen J, Ji C, Deng Y, Hu Y. SIRT3 alleviates high glucose-induced chondrocyte injury through the promotion of autophagy and suppression of apoptosis in osteoarthritis progression. Int Immunopharmacol 2024; 130:111755. [PMID: 38408417 DOI: 10.1016/j.intimp.2024.111755] [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: 11/28/2023] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
A growing amount of epidemiological evidence proposes diabetes mellitus (DM) to be an independent risk factor for osteoarthritis (OA). Sirtuin 3 (SIRT3), which is mainly located in mitochondria, belongs to the family of nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylases and is involved in the physiological and pathological processes of cell regulation. The aim of this study was to investigate the effects of SIRT3 on diabetic OA and underlying mechanisms in the prevention of type 2 DM (T2DM)-induced articular cartilage damage. High-fat and high-sugar diets combined with streptozotocin (STZ) injection were used for establishing an experimental T2DM rat model. The destabilization of medial meniscus (DMM) surgery was applied to induce the rat OA model. Primary rat chondrocytes were cultivated with a concentration of gradient glucose. Treatment with intra-articular injection of SIRT3 overexpression lentivirus was achieved in vivo, and intervention with SIRT3 knockdown was performed using siRNA transfection in vitro. High glucose content was found to activate inflammatory response, facilitate apoptosis, downregulate autophagy, and exacerbate mitochondrial dysfunction in a dose-dependent manner in rat chondrocytes, which can be deteriorated by SIRT3 knockdown. In addition, articular cartilage damage was found to be more severe in T2DM-OA rats than in DMM-induced OA rats, which can be mitigated by the intra-articular injection of SIRT3 overexpression lentivirus. Targeting SIRT3 is a potential therapeutic strategy for the alleviation of diabetic OA.
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Affiliation(s)
- Xuezhong Wang
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Zilin Liu
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Shuang Deng
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Jianlin Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Xuyang Li
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Jun Huang
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Junwen Chen
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Chuang Ji
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Yu Deng
- Department of Orthopedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, No. 169 Donghu Road, Wuchang District, Wuhan, 430071, China.
| | - Yong Hu
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China.
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3
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Chen J, Xu W, Dai T, Jiao S, Xue X, Jiang J, Li S, Meng Q. Pioglitazone-Loaded Cartilage-Targeted Nanomicelles (Pio@C-HA-DOs) for Osteoarthritis Treatment. Int J Nanomedicine 2023; 18:5871-5890. [PMID: 37873552 PMCID: PMC10590558 DOI: 10.2147/ijn.s428938] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/07/2023] [Indexed: 10/25/2023] Open
Abstract
Background Hyaluronic acid (HA) is a popular biological material for osteoarthritis (OA) treatment. Pioglitazone, a PPAR-γ agonist, has been found to inhibit OA, but its use is limited because achieving the desired local drug concentration after administration is challenging. Purpose Herein, we constructed HA-based cartilage-targeted nanomicelles (C-HA-DOs) to deliver pioglitazone in a sustained manner and evaluated their efficacy in vitro and in vivo. Methods C-HA-DOs were chemically synthesized with HA and the WYRGRL peptide and dodecylamine. The products were characterized by FT-IR, 1H NMR, zeta potential and TEM. The drug loading rate and cumulative, sustained drug release from Pio@C-HA-DOs were determined, and their biocompatibility and effect on oxidative stress in chondrocytes were evaluated. The uptake of C-HA-DOs by chondrocytes and their effect on OA-related genes were examined in vitro. The nanomicelle distribution in the joint cavity was observed by in vivo small animal fluorescence imaging (IVIS). The therapeutic effects of C-HA-DOs and Pio@C-HA-DOs in OA rats were analysed histologically. Results The C-HA-DOs had a particle size of 198.4±2.431 nm, a surface charge of -8.290±0.308 mV, and a critical micelle concentration of 25.66 mg/Land were stable in solution. The cumulative drug release from the Pio@C-HA-DOs was approximately 40% at pH 7.4 over 24 hours and approximately 50% at pH 6.4 over 4 hours. Chondrocytes rapidly take up C-HA-DOs, and the uptake efficiency is higher under oxidative stress. In chondrocytes, C-HA-DOs, and Pio@C-HA-DOs inhibited H2O2-induced death, reduced intracellular ROS levels, and restored the mitochondrial membrane potential. The IVIS images confirmed that the micelles target cartilage. Pio@C-HA-DOs reduced the degradation of collagen II and proteoglycans by inhibiting the expression of MMP and ADAMTS, ultimately delaying OA progression in vitro and in vivo. Conclusion Herein, C-HA-DOs provided targeted drug delivery to articular cartilage and improved the role of pioglitazone in the treatment of OA.
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Affiliation(s)
- Junyan Chen
- Guizhou Medical University, Guiyang, 550025, People’s Republic of China
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Wuyan Xu
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Tianming Dai
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Songsong Jiao
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Xiang Xue
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Jiayang Jiang
- Guizhou Medical University, Guiyang, 550025, People’s Republic of China
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Siming Li
- Guizhou Medical University, Guiyang, 550025, People’s Republic of China
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Qingqi Meng
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
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4
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Sheng W, Wang Q, Qin H, Cao S, Wei Y, Weng J, Yu F, Zeng H. Osteoarthritis: Role of Peroxisome Proliferator-Activated Receptors. Int J Mol Sci 2023; 24:13137. [PMID: 37685944 PMCID: PMC10487662 DOI: 10.3390/ijms241713137] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/04/2023] [Accepted: 08/15/2023] [Indexed: 09/10/2023] Open
Abstract
Osteoarthritis (OA) represents the foremost degenerative joint disease observed in a clinical context. The escalating issue of population aging significantly exacerbates the prevalence of OA, thereby imposing an immense annual economic burden on societies worldwide. The current therapeutic landscape falls short in offering reliable pharmaceutical interventions and efficient treatment methodologies to tackle this growing problem. However, the scientific community continues to dedicate significant efforts towards advancing OA treatment research. Contemporary studies have discovered that the progression of OA may be slowed through the strategic influence on peroxisome proliferator-activated receptors (PPARs). PPARs are ligand-activated receptors within the nuclear hormone receptor family. The three distinctive subtypes-PPARα, PPARβ/δ, and PPARγ-find expression across a broad range of cellular terminals, thus managing a multitude of intracellular metabolic operations. The activation of PPARγ and PPARα has been shown to efficaciously modulate the NF-κB signaling pathway, AP-1, and other oxidative stress-responsive signaling conduits, leading to the inhibition of inflammatory responses. Furthermore, the activation of PPARγ and PPARα may confer protection to chondrocytes by exerting control over its autophagic behavior. In summation, both PPARγ and PPARα have emerged as promising potential targets for the development of effective OA treatments.
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Affiliation(s)
- Weibei Sheng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Qichang Wang
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Haotian Qin
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Siyang Cao
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Yihao Wei
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Jian Weng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Fei Yu
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Hui Zeng
- National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen 518036, China
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5
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Motta F, Barone E, Sica A, Selmi C. Inflammaging and Osteoarthritis. Clin Rev Allergy Immunol 2023; 64:222-238. [PMID: 35716253 DOI: 10.1007/s12016-022-08941-1] [Citation(s) in RCA: 82] [Impact Index Per Article: 82.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2022] [Indexed: 12/15/2022]
Abstract
Osteoarthritis is a highly prevalent disease particularly in subjects over 65 years of age worldwide. While in the past it was considered a mere consequence of cartilage degradation leading to anatomical and functional joint impairment, in recent decades, there has been a more dynamic view with the synovium, the cartilage, and the subchondral bone producing inflammatory mediators which ultimately lead to cartilage damage. Inflammaging is defined as a chronic, sterile, low-grade inflammation state driven by endogenous signals in the absence of infections, occurring with aging. This chronic status is linked to the production of reactive oxygen species and molecules involved in the development of age-related disease such as cancer, diabetes, and cardiovascular and neurodegenerative diseases. Inflammaging contributes to osteoarthritis development where both the innate and the adaptive immune response are involved. Elevated systemic and local inflammatory cytokines and senescent molecules promote cartilage degradation, and antigens derived from damaged joints further trigger inflammation through inflammasome activation. B and T lymphocyte populations also change with inflammaging and OA, with reduced regulatory functions, thus implicating self-reactivity as an additional mechanism of joint damage. The discovery of the underlying pathogenic pathways may help to identify potential therapeutic targets for the management or the prevention of osteoarthritis. We will provide a comprehensive evaluation of the current literature on the role of inflammaging in osteoarthritis and discuss the emerging therapeutic strategies.
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Affiliation(s)
- Francesca Motta
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089, Rozzano, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, via Rita Levi Montalcini, 20090, Pieve Emanuele, Milan, Italy
| | - Elisa Barone
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089, Rozzano, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, via Rita Levi Montalcini, 20090, Pieve Emanuele, Milan, Italy
| | - Antonio Sica
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089, Rozzano, Milan, Italy.,Department of Pharmaceutical Sciences, Università del Piemonte Orientale "Amedeo Avogadro", Largo Donegani 2, 28100, Novara, Italy
| | - Carlo Selmi
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089, Rozzano, Milan, Italy. .,Department of Biomedical Sciences, Humanitas University, via Rita Levi Montalcini, 20090, Pieve Emanuele, Milan, Italy.
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6
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Turosz N, Chęcińska K, Chęciński M, Kamińska M, Nowak Z, Sikora M, Chlubek D. A Scoping Review of the Use of Pioglitazone in the Treatment of Temporo-Mandibular Joint Arthritis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192416518. [PMID: 36554400 PMCID: PMC9779153 DOI: 10.3390/ijerph192416518] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 05/27/2023]
Abstract
Thiazolidinediones (TZDs) are a group of diabetes medications currently being investigated for anti-arthritis effectiveness, one of which is pioglitazone. The purpose of this scoping review is to evaluate the potential use of pioglitazone in the treatment of temporomandibular joint (TMJ) arthritis. The criteria of eligibility were studies with the diagnosis of arthritis and pioglitazone treatment with a change in any inflammation index as an outcome. Of the 1169 records initially identified following the selection process, two animal studies and four clinical studies were included in the review. Improvements from the baseline were observed in each treatment group for each inflammation indicator. The results of the animal studies on the temporomandibular joints and on patients with rheumatoid and psoriatic arthritis indicate that the drug in question may have potential to treat arthritis, including within the temporomandibular joint.
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Affiliation(s)
- Natalia Turosz
- Ortomania, Bartosza Głowackiego 6/1, 30-085 Kraków, Poland
| | - Kamila Chęcińska
- Department of Glass Technology and Amorphous Coatings, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland
| | - Maciej Chęciński
- Department of Oral Surgery, Preventive Medicine Center, Komorowskiego 12, 30-106 Kraków, Poland
| | - Monika Kamińska
- Collegium Medicum, Jan Kochanowski University, aleja IX Wieków Kielc 19A, 25-317 Kielce, Poland
| | - Zuzanna Nowak
- Department of Temporomandibular Disorders, Medical University of Silesia in Katowice, Traugutta sq.2, 41-800 Zabrze, Poland
| | - Maciej Sikora
- Department of Maxillofacial Surgery, Hospital of the Ministry of Interior, Wojska Polskiego 51, 25-375 Kielce, Poland
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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7
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Qiu L, Zhang M, Li C, Hou Y, Liu H, Lin J, Yao J, Duan DZ, Zhang YX, Li M, Li YL, Wang P, Li JT, Jin XJ, Liu YQ. Deciphering the active constituents of Dabushen decoction of ameliorating osteoarthritis via PPARγ preservation by targeting DNMT1. Front Pharmacol 2022; 13:993498. [PMID: 36506533 PMCID: PMC9727303 DOI: 10.3389/fphar.2022.993498] [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: 07/13/2022] [Accepted: 11/01/2022] [Indexed: 11/24/2022] Open
Abstract
Osteoarthritis (OA) is a multifactorial and chronic degenerative joint disease. Due to the adverse effects of currently used drugs, a safer and more effective therapy for treating OA is needed. Peroxisome proliferator-activated receptor-γ (PPARγ) is a key protein protecting cartilage. DNMT1-mediated hypermethylation of PPARγ promoter leads to its suppression. Therefore, DNMT1 might be an effective target for exerting cartilage protective effects by regulating the epigenetic expression of PPARγ. Dabushen decoction (DD) is a representative prescription of Dunhuang ancient medical prescription, which has a potential therapeutic effect on OA. So far, the research of the efficacy and material basis of DD in the treatment of OA remains unclear. In this study, Micro-CT, HE staining, S-O staining, and immunohistochemistry analysis were used to demonstrate that DD increased the expression of PPARγ and collagen synthesis in an OA rat model. Next, the structure of DNMT1 was used to screen the active constituents of DD by molecular docking method for treatment OA. Seven potential active constituents, including isoliquiritigenin, emodin, taxifolin, catalpol, alisol A, zingerone, and schisandrin C were hited. The protective effect of the potential active constituents to chondrocytes were evaluated by protein capillary electrophoresis, immunofluorescence assays, and ex vivo culture of rat knee cartilage. The five constituents, such as alisol A, emodin, taxifolin, isoliquiritigenin, and schisandrin C could promote the expression of PPARγ and ameliorate IL-1β-induced downregulation of collagen II and the production of MMP-13. Alisol A and Emodin could effectively mitigate cartilage damage. At last, molecular dynamics simulations with MM-GBSA method was applied to investigate the interaction pattern of the active constituents and DNMT1 complexes. The five constituents, such as alisol A, emodin, taxifolin, isoliquiritigenin, and schisandrin C achieved a stable binding pattern with DNMT1, in which alisol A has a relatively high binding free energy. In conclusion, this study elucidates that the active constituents of DD (alisol A, emodin, taxifolin, isoliquiritigenin, and schisandrin C) could ameliorate osteoarthritis via PPARγ preservation by targeting DNMT1.These findings facilitated clinical use of DD and provided a valuable strategy for developing natural epigenetic modulators from Chinese herbal formula.
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Affiliation(s)
- Lu Qiu
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,Key Laboratory of Dunhuang Medicine, Ministry of Education, Gansu University of Chinese Medicine, Lanzhou, China
| | - Min Zhang
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, China
| | - Chenghao Li
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,Key Laboratory of Dunhuang Medicine, Ministry of Education, Gansu University of Chinese Medicine, Lanzhou, China
| | - Yehu Hou
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,Key Laboratory of Dunhuang Medicine, Ministry of Education, Gansu University of Chinese Medicine, Lanzhou, China
| | - Hao Liu
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jia Lin
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, China
| | - Juan Yao
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, China
| | - Dong Zhu Duan
- Shaanxi Key Laboratory of Phytochemistry and College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, China
| | - Yi Xi Zhang
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, China
| | - Mi Li
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, China
| | - Ya Ling Li
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,Key Laboratory of Dunhuang Medicine, Ministry of Education, Gansu University of Chinese Medicine, Lanzhou, China
| | - Peng Wang
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jin Tian Li
- Key Laboratory of Dunhuang Medicine, Ministry of Education, Gansu University of Chinese Medicine, Lanzhou, China
| | - Xiao Jie Jin
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,Key Laboratory of Dunhuang Medicine, Ministry of Education, Gansu University of Chinese Medicine, Lanzhou, China,College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou, China,*Correspondence: Xiao Jie Jin, ; Yong Qi Liu,
| | - Yong Qi Liu
- Gansu University Key Laboratory for Molecular Medicine and Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, China,Key Laboratory of Dunhuang Medicine, Ministry of Education, Gansu University of Chinese Medicine, Lanzhou, China,*Correspondence: Xiao Jie Jin, ; Yong Qi Liu,
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8
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He CP, Chen C, Jiang XC, Li H, Zhu LX, Wang PX, Xiao T. The role of AGEs in pathogenesis of cartilage destruction in osteoarthritis. Bone Joint Res 2022; 11:292-300. [PMID: 35549515 PMCID: PMC9130677 DOI: 10.1302/2046-3758.115.bjr-2021-0334.r1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Osteoarthritis (OA) is a degenerative disease resulting from progressive joint destruction caused by many factors. Its pathogenesis is complex and has not been elucidated to date. Advanced glycation end products (AGEs) are a series of irreversible and stable macromolecular complexes formed by reducing sugar with protein, lipid, and nucleic acid through a non-enzymatic glycosylation reaction (Maillard reaction). They are an important indicator of the degree of ageing. Currently, it is considered that AGEs accumulation in vivo is a molecular basis of age-induced OA, and AGEs production and accumulation in vivo is one of the important reasons for the induction and acceleration of the pathological changes of OA. In recent years, it has been found that AGEs are involved in a variety of pathological processes of OA, including extracellular matrix degradation, chondrocyte apoptosis, and autophagy. Clearly, AGEs play an important role in regulating the expression of OA-related genes and maintaining the chondrocyte phenotype and the stability of the intra-articular environment. This article reviews the latest research results of AGEs in a variety of pathological processes of OA, to provide a new direction for the study of OA pathogenesis and a new target for prevention and treatment. Cite this article: Bone Joint Res 2022;11(5):292–300.
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Affiliation(s)
- Chao-Peng He
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Cheng Chen
- Department of Orthopedics, Second Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Xin-Chen Jiang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha, China.,Hunan Provincial Key Laboratory of Neurorestoratology, Second Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Hui Li
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Li-Xin Zhu
- Department of Orthopedics, Second Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Ping-Xiao Wang
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Tao Xiao
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha, China
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9
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Yang Q, Shi Y, Jin T, Duan B, Wu S. Advanced Glycation End Products Induced Mitochondrial Dysfunction of Chondrocytes through Repression of AMPKα-SIRT1-PGC-1α Pathway. Pharmacology 2022; 107:298-307. [PMID: 35240662 DOI: 10.1159/000521720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 12/20/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Our previous studies have demonstrated advanced glycation end products (AGEs) was an important mediator in osteoarthritis (OA) which may induce mitochondrial dysfunction. AMP-activated protein kinase (AMPK), sirtuin 1 (SIRT1), and its downstream target peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α) are the critical sensors that regulate mitochondrial biogenesis and have been recognized as therapeutic targets in OA. This study was designed to test whether AGEs caused mitochondrial dysfunction through modulation of AMPKα/SIRT1/PGC-1α. METHODS We knocked down or overexpressed AMPKα, SIRT1, and PGC-1α by small interfering RNA or plasmid DNA transfection, respectively. Mitochondrial membrane potential (△Ψ) was detected by tetraethylbenzimidazolyl carbocyanine iodide (JC-1) fluorescence probe. RESULTS The results showed that AGEs impaired △Ψ, intracellular ATP level, and mitochondrial DNA content, linked to decreased AMPKα, SIRT1, and PGC-1α expression in chondrocyte. AMPKα pharmacologic activation or overexpression of AMPKα, SIRT1, and PGC-1α reversed impairments of mitochondrial biogenesis, oxidative stress, and inflammation in AGEs-induced chondrocytes. However, AMPKα activation using AICAR had decreased capacity to increase each of those same effect readouts in AGEs-treated SIRT1-siRNA or PGC-1α-siRNA chondrocyte. CONCLUSION Taken together, AGEs reduced the AMPKα/SIRT1/PGC-1α signaling in chondrocytes, leading to mitochondrial dysfunction as a result of increased oxidative stress, inflammation, and apoptosis. These results indicated that target AMPK may be as a novel therapeutic strategy for AGEs-related OA prevention.
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Affiliation(s)
- Qingshan Yang
- Department of Orthopaedics, Gan Su Province Hospital, Lan Zhou, China
| | - Yucong Shi
- Department of Orthopaedics, Gan Su Province Hospital, Lan Zhou, China.,Gansu University of Chinese Medicine, Lan Zhou, China
| | - Tao Jin
- Department of Orthopaedics, Gan Su Province Hospital, Lan Zhou, China.,Gansu University of Chinese Medicine, Lan Zhou, China
| | - Bowen Duan
- Department of Pharmacy, Gan Su ProvincTe Hospital, Lan Zhou, China
| | - Shujin Wu
- Department of Pharmacy, Gan Su ProvincTe Hospital, Lan Zhou, China
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10
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Liu H, Liu Y, Chen B. Antagonism of GPR4 with NE 52-QQ57 and the Suppression of AGE-Induced Degradation of Type II Collagen in Human Chondrocytes. Chem Res Toxicol 2020; 33:1915-1921. [PMID: 32370492 DOI: 10.1021/acs.chemrestox.0c00111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Osteoarthritis (OA) is a common degenerative joint disease for which an effective therapeutic strategy has not yet been established. AGEs are widely recognized as a contributor to OA pathogenesis. GPR4, a recently discovered proton-sensing transmembrane receptor, has been shown to possess a wide range of physiological functions. However, the potential role of this receptor in chondrocytes and the pathogenesis of OA is unclear. In the present study, we investigated the potential of GPR4 to modulate the effects of advanced glycation end products (AGEs) in SW1353 human chondrocytes. First, we demonstrate that GPR4 is fairly expressed in SW1353 chondrocytes and that exposure to AGEs increases the expression of this transmembrane receptor. Second, we found that antagonism of GPR4 with NE 52-QQ57 significantly inhibited the AGE-induced increased expression of several key inflammatory cytokines and signaling molecules, including tumor necrosis factor-α (TNF-α), interleukin (IL)-1β, IL-6, inducible nitric oxide synthase (iNOS), nitric oxide (NO), cyclooxygenase 2 (COX2), and prostaglandin E2 (PGE2). We also found that antagonisn of GPR4 had a remarkable ability to rescue type II collagen from AGE-induced degradation by inhibiting the expression of matrix metalloproteinase (MMP)-3 and MMP-13. As a key pro-inflammatory signaling pathway, we further tested the effect of GPR4 antagonism on the activation of nuclear factor-κB (NF-κB) and found that NF-κB activation was indeed suppressed, thereby indicating that the NF-κB signaling pathway may mediate the effects of GPR4 antagonism described above. These findings provide a basis for further research into the role of GPR4 -mediated signaling in OA.
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Affiliation(s)
- Haochuan Liu
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun City, Jilin Province 130033, China
| | - Yulong Liu
- Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun City, Jilin Province 130033, China
| | - Bing Chen
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun City, Jilin Province 130033, China
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11
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Inhibitory effect of phenolic compounds and plant extracts on the formation of advance glycation end products: A comprehensive review. Food Res Int 2020; 130:108933. [DOI: 10.1016/j.foodres.2019.108933] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 12/22/2022]
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12
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Huang H, Wang ZJ, Zhang HB, Liang JX, Cao WD, Wu Q, He CP, Chen C. The Function of PPARγ/AMPK/SIRT-1 Pathway in Inflammatory Response of Human Articular Chondrocytes Stimulated by Advanced Glycation End Products. Biol Pharm Bull 2020; 42:1303-1309. [PMID: 31366866 DOI: 10.1248/bpb.b19-00036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Accumulation of advanced glycation end products (AGEs) in the articular cartilage is a major risk factor for osteoarthritis (OA). To determine the mechanistic basis of AGE action in OA, we treated human articular chondrocytes with AGEs, and found that they not only up-regulated the pro-inflammatory cytokines interleukin (IL)-1β and tumor necrosis factor (TNF)-α, but also inhibited AMP-activated protein kinase (AMPK) phosphorylation and decreased sirtuin 1 (SIRT-1) levels in a concentration- and time-dependent manner. Pioglitazone, a peroxisome proliferator-activated receptor-γ (PPARγ) agonist restored the inhibited AMPK and SIRT-1 by AGEs. Pre-treatment of the cells with the agonists or antagonists of AMPK and SIRT-1 respectively abolished and augmented the inflammatory state induced by AGEs. Furthermore, AMPK agonist also restored the levels of SIRT-1 in the AGE-stimulated chondrocytes. Our findings indicate AGEs induce an inflammatory response in human articular chondrocytes via the PPARγ/AMPK/SIRT-1 pathway, which is therefore a potential target in OA therapy.
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Affiliation(s)
- Hao Huang
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
| | - Zhao-Jun Wang
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
| | - Hai-Bin Zhang
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
| | - Jian-Xia Liang
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
| | - Wen-Dong Cao
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
| | - Qi Wu
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
| | - Chao-Peng He
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
| | - Cheng Chen
- Department of Orthopedics, The 921st Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University
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Wang PL, Xie LH, Joseph EA, Li JR, Su XO, Zhou HC. Metal-Organic Frameworks for Food Safety. Chem Rev 2019; 119:10638-10690. [PMID: 31361477 DOI: 10.1021/acs.chemrev.9b00257] [Citation(s) in RCA: 272] [Impact Index Per Article: 54.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Food safety is a prevalent concern around the world. As such, detection, removal, and control of risks and hazardous substances present from harvest to consumption will always be necessary. Metal-organic frameworks (MOFs), a class of functional materials, possess unique physical and chemical properties, demonstrating promise in food safety applications. In this review, the synthesis and porosity of MOFs are first introduced by some representative examples that pertain to the field of food safety. Following that, the application of MOFs and MOF-based materials in food safety monitoring, food processing, covering preservation, sanitation, and packaging is overviewed. Future perspectives, as well as potential opportunities and challenges faced by MOFs in this field will also be discussed. This review aims to promote the development and progress of MOF chemistry and application research in the field of food safety, potentially leading to novel solutions.
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Affiliation(s)
- Pei-Long Wang
- Institute of Quality Standards and Testing Technology for Agro-products , Chinese Academy of Agricultural Sciences , Beijing 100081 , P. R. China.,Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , P. R. China
| | - Lin-Hua Xie
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , P. R. China
| | - Elizabeth A Joseph
- Department of Chemistry , Texas A&M University , P.O. Box 30012, College Station , Texas 77842-3012 , United States
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering , Beijing University of Technology , Beijing 100124 , P. R. China
| | - Xiao-Ou Su
- Institute of Quality Standards and Testing Technology for Agro-products , Chinese Academy of Agricultural Sciences , Beijing 100081 , P. R. China
| | - Hong-Cai Zhou
- Department of Chemistry , Texas A&M University , P.O. Box 30012, College Station , Texas 77842-3012 , United States
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14
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Shaikh-Kader A, Houreld NN, Rajendran NK, Abrahamse H. The link between advanced glycation end products and apoptosis in delayed wound healing. Cell Biochem Funct 2019; 37:432-442. [PMID: 31318458 DOI: 10.1002/cbf.3424] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 06/05/2018] [Accepted: 06/05/2019] [Indexed: 01/26/2023]
Abstract
Advanced glycation end products (AGEs) are naturally occurring molecules that start to accumulate from embryonic developmental stages and form as part of normal ageing. When reducing sugars interact with and modify proteins or lipids, AGE production occurs. AGE formation accelerates in chronic hyperglycemic conditions, and high AGE levels have been associated with the pathogenesis of various diseases. In addition, enhanced levels of AGEs have been linked to delayed wound healing as seen in patients with diabetes mellitus. Research has provided numerous ways in which a high AGE concentration results in impaired wound healing, including oxidative stress, structural and functional changes to proteins important in wound repair, an enhanced inflammatory response by activation of transcription factors, and possible exaggerated apoptosis of cells necessary to the wound repair process. Apoptosis is a naturally occurring cell death process that is significant for normal tissue functioning and plays an important role in wound repair by preventing a prolonged inflammatory response and excessive scar formation. Abnormal apoptosis affects wound healing, resulting in slow healing wounds. This review will summarize the role of AGEs in wound healing, focusing on the mechanisms by which AGEs lead to apoptosis in various cell types. The review provides the way forward for medical research and molecular studies as it focuses on the mechanisms by which AGEs induce apoptosis in various cell types, including fibroblasts, osteoblasts, neuronal cells, and endothelial cells. Reviewing the mechanisms of AGE-linked apoptosis is important in understanding the impact of high AGE levels in delayed wound healing in diabetic patients due to abnormal apoptosis of cells necessary to the wound healing process.
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Affiliation(s)
- Asma Shaikh-Kader
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Nicolette Nadene Houreld
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Naresh Kumar Rajendran
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
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15
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Luo R, Song Y, Liao Z, Yin H, Zhan S, Wang K, Li S, Li G, Ma L, Lu S, Zhang Y, Yang C. Impaired calcium homeostasis via advanced glycation end products promotes apoptosis through endoplasmic reticulum stress in human nucleus pulposus cells and exacerbates intervertebral disc degeneration in rats. FEBS J 2019; 286:4356-4373. [PMID: 31230413 DOI: 10.1111/febs.14972] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/05/2019] [Accepted: 06/21/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Rongjin Luo
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yu Song
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Zhiwei Liao
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Huipeng Yin
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Shengfeng Zhan
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Kun Wang
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Shuai Li
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Gaocai Li
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Liang Ma
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Saideng Lu
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yukun Zhang
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Cao Yang
- Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan China
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16
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Adeshara KA, Agrawal SB, Gaikwad SM, Tupe RS. Pioglitazone inhibits advanced glycation induced protein modifications and down-regulates expression of RAGE and NF-κB in renal cells. Int J Biol Macromol 2018; 119:1154-1163. [PMID: 30096396 DOI: 10.1016/j.ijbiomac.2018.08.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/06/2018] [Accepted: 08/07/2018] [Indexed: 12/20/2022]
Abstract
The present work aims to determine the effect of pioglitazone on in-vitro albumin glycation and AGE-RAGE induced oxidative stress and inflammation. Bovine serum albumin was glycated by methylglyoxal in absence or presence of pioglitazone. Glycation markers (fructosamine, carbonyl groups, β-amyloid aggregation, thiol groups, bilirubin binding capacity and AOPP); protein conformational changes (native-PAGE and HPLC analysis) were determined. Cellular study was done by estimating antioxidants, ROS levels, expression profile of membrane RAGE, NF-κB and levels of inflammatory cytokines (IL-6, TNF-α) using HEK-293 cell line. We observed that levels of glycation markers were reduced at higher concentration of pioglitazone as compared to glycated albumin. Structural analysis of glycated albumin showed inhibition of protein migration and structural changes when treated with pioglitazone. Pioglitazone has potentially restored cellular antioxidants and reduced levels of IL-6 and TNF-α by declining expression of membrane RAGE and NF-κB. In conclusion, pioglitazone preferentially binds to protein and alleviates protein structural changes by maintaining its integrity. Additionally, it suppresses RAGE and NF-κB levels hence alleviate cellular oxidative stress and inflammation.
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Affiliation(s)
- Krishna A Adeshara
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, India
| | | | - Sushama M Gaikwad
- Biochemical Sciences Division, National Chemical Laboratory, Pune, India
| | - Rashmi S Tupe
- Biochemical Sciences Division, Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth University, Pune, India.
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17
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Sun MMG, Beier F, Ratneswaran A. Nuclear receptors as potential drug targets in osteoarthritis. Curr Opin Pharmacol 2018; 40:81-86. [PMID: 29626714 DOI: 10.1016/j.coph.2018.03.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 03/20/2018] [Indexed: 12/19/2022]
Abstract
Osteoarthritis is amongst the major causes of disability worldwide, but no medications that can slow or stop progression of this disorder have been identified. Recent evidence suggests roles for a variety of members of the nuclear receptor family of ligand-activated transcription factors in various forms of osteoarthritis. Since nuclear receptors are amongst the major classes of drug targets, these studies suggest that modulators of nuclear receptor activity might provide novel strategies to treat osteoarthritis. This review focuses on recent advances in our understanding of the role of nuclear receptors in osteoarthritis onset and progression, as well as their therapeutic implications. Future studies should continue to examine the possible roles of additional nuclear receptors in the pathophysiology of different types of osteoarthritis.
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Affiliation(s)
- Margaret Man-Ger Sun
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, ON, Canada N6A 5C1; Bone & Joint Institute, The University of Western Ontario, London, ON, Canada N6A 5C1
| | - Frank Beier
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, ON, Canada N6A 5C1; Bone & Joint Institute, The University of Western Ontario, London, ON, Canada N6A 5C1.
| | - Anusha Ratneswaran
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, The University of Western Ontario, London, ON, Canada N6A 5C1; Bone & Joint Institute, The University of Western Ontario, London, ON, Canada N6A 5C1
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Wang ZJ, Zhang HB, Chen C, Huang H, Liang JX. Effect of PPARG on AGEs-induced AKT/MTOR signaling-associated human chondrocytes autophagy. Cell Biol Int 2018; 42:841-848. [PMID: 29453775 DOI: 10.1002/cbin.10951] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/11/2018] [Indexed: 12/21/2022]
Abstract
Accumulation of advanced glycation end products (AGEs) in articular cartilage is thought to represent a major risk factor for osteoarthritis development. In this study we aimed to probe the role of AGEs in human chondrocytes and to determine the impact of the peroxisome proliferator-activated receptor-γ (PPARG) on AGEs-induced cell autophagy. Cell viability was measured after human chondrocytes were treated with different concentrations of AGEs with or without the PPARG inhibitor, T0070907, or agonist, pioglitazone. Autophagy activation markers (MAP2LC3, BECN1 and SQSTM1/P62), expression of PPARG and the phosphorylation levels of Akt/MTOR were determined by Western blotting; autophagosome formation was analyzed by transmission electron microscopy (TEM); autophagic flux was detected with mRFP-GFP-LC3 tandem construct. Low doses of AGEs over a short amount of time stimulated chondrocyte proliferation and autophagy by limiting phosphorylation of Akt/MTOR signaling. The addition of PPARG inhibitor T0070907 lead to defective autophagy. High dose and long exposure to AGEs inhibited cell viability and autophagy by increasing phosphorylation levels of Akt/MTOR signaling. The agonist, pioglitazone, was shown to protect cell autophagy in a dose-dependent manner. Our findings suggest AGEs can downregulate PPARG and that PPARG maintains cell viability by activating the Akt/MTOR signaling pathway as well as inducing chondrocyte autophagy.
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Affiliation(s)
- Zhao-Jun Wang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Hai-Bin Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Cheng Chen
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Hao Huang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Jian-Xia Liang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
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Deng S, Zhou JL, Peng H, Fang HS, Liu F, Weng JQ. Local intra‑articular injection of vascular endothelial growth factor accelerates articular cartilage degeneration in rat osteoarthritis model. Mol Med Rep 2018; 17:6311-6318. [PMID: 29488610 PMCID: PMC5928607 DOI: 10.3892/mmr.2018.8652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/28/2017] [Indexed: 01/20/2023] Open
Abstract
In the pathophysiology of osteoarthritis (OA), articular cartilage degeneration exhibits a significant role. Vascular endothelial growth factor (VEGF) is considered to be an effective angiogenic factor and a crucial regulator of articular cartilage degeneration in the development of OA. Therefore, the present study aimed to investigate the underlying influences of exogenous VEGF on articular cartilage degeneration in OA model rat. A total of 24 male Sprague-Dawley rats were randomly allocated into 3 groups. In the normal saline (NS) and VEGF groups, animals received bilateral anterior cruciate ligament (ACL) transection to establish the OA model; at 4 weeks post-surgery, the rats received local intra-articular injections of 100 µl NS or VEGF solution, respectively, every week for 4 weeks. The Control group received neither surgery nor injections. All animals were sacrificed at 12 weeks following surgery. Prominent cartilage degeneration was observed in rats in the NS- and VEGF-injected groups. The extent and the grade of cartilage damage in the VEGF-injected group were notably more severe compared with those in the NS-treated group. Western blotting results demonstrated that the expression levels of aggrecan and type II collagen were significantly reduced in OA model rats that were treated with VEGF. In addition, the expression levels of matrix metalloproteinase (MMP)-3, MMP-9, MMP-13, a disintegrin and metalloproteinase with thrombospondin motifs (a disintegrin and metalloproteinase; ADAMTS)-4, −5 and −12, type III collagen and transforming growth factor-β1 were significantly increased following VEGF administration. Results from the present study indicated that VEGF may exhibit a promoting role in the development of OA by destroying articular cartilage matrix.
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Affiliation(s)
- Shuang Deng
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jian-Lin Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hao Peng
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hong-Song Fang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Feng Liu
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jin-Qing Weng
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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Liu H, Chen X, Zhang D, Wang J, Wang S, Sun B. Effects of Highland Barley Bran Extract Rich in Phenolic Acids on the Formation of N ε-Carboxymethyllysine in a Biscuit Model. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1916-1922. [PMID: 29414239 DOI: 10.1021/acs.jafc.7b04957] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Highland barley, a staple food in northwest China, is a well-known source of bioactive phytochemicals, including phenolic compounds. This study evaluated the inhibitory effects of highland barley bran extract (HBBE) on the advanced glycation end product (AGE) levels in a biscuit model, as measured by Nε-carboxymethyllysine (CML) content. CML was detected in all inhibition models using HBBE extracted with different solvents. Under optimal conditions, CML formation in the heated model system composed of glucose/lysine/linoleic acid was effectively inhibited by HBBE. This inhibition effect using extracts from 60% acetone solution was 45.58%. Five major phenolic acids from HBBE (ferulic, syringic, sinapic, p-coumaric, and caffeic acids) were further tested for their trapping and scavenging abilities of glyoxal, a reactive carbonyl species and a key intermediate compound for forming CML. This study has demonstrated that HBBE can potentially control CML formation during food processing, therefore effectively reducing glycation in foods and benefiting those with chronic diseases.
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Affiliation(s)
- Huilin Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Xiaomo Chen
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Dianwei Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, People's Republic of China
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology , 29 The Thirteenth Road, Tianjin Economy and Technology Development Area, Tianjin 300457, People's Republic of China
| | - Jing Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, People's Republic of China
| | - Shuo Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, People's Republic of China
- School of Medicine, Nankai University , Tianjin 300071, People's Republic of China
| | - Baoguo Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, People's Republic of China
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Zhang HB, Zhang Y, Chen C, Li YQ, Ma C, Wang ZJ. Pioglitazone inhibits advanced glycation end product-induced matrix metalloproteinases and apoptosis by suppressing the activation of MAPK and NF-κB. Apoptosis 2018; 21:1082-93. [PMID: 27515513 DOI: 10.1007/s10495-016-1280-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Apoptosis and degeneration coming mainly from chondrocytes are important mechanisms in the onset and progression of osteoarthritis. Specifically, advanced glycation end products (AGEs) play an important role in the pathogenesis of osteoarthritis. Pioglitazone, a peroxisome proliferator-activated receptor γ (PPARγ) agonist has a protective effect on cartilage. This study aims to evaluate the effect of pioglitazone on AGEs-induced chondrocyte apoptosis and degeneration and their underlying mechanism. The in vitro study shows that AGEs induce cleavage of caspase-3 and PARP, up-regulate MMP-13 expression, enhance chondrocyte apoptosis and down-regulate PPARγ expression in human primary chondrocytes, which is reversed by pioglitazone. Furthermore, AGEs activate phosphorylation of Erk, JNK, and p38, and pioglitazone reverses AGEs-induced phosphorylation of Erk and p38. AGEs-induced degradation of IκBα and translocation of nuclear NF-κB p65 is reversed by pioglitazone. Pretreatment of chondrocytes with SB202190 (p38 inhibitor), SP600125 (JNK inhibitor) and BAY-11-7082 (NF-κB inhibitor) inhibit AGEs-induced apoptosis and degeneration. In vivo experiments suggest that pioglitazone reverses AGEs-induced cartilage degeneration and apoptosis in a mouse model, as demonstrated by HE and Safranin O staining, immunohistochemical analyses of Type II collagen (Col II), metalloproteinases (MMPs) and caspase-3. These findings suggest that pioglitazone, a PPARγ agonist, inhibits AGEs-induced chondrocytes apoptosis and degeneration via suppressing the activation of MAPK and NF-κB.
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Affiliation(s)
- Hai-Bin Zhang
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
| | - Ying Zhang
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
| | - Cheng Chen
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China.
| | - Yu-Qing Li
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
| | - Chi Ma
- Department of Orthopedics, People's Hospital of Xiangxi Autonomous Prefecture, Jishou, Hunan, China
| | - Zhao-Jun Wang
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
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22
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Zhang W, Randell EW, Sun G, Likhodii S, Liu M, Furey A, Zhai G. Hyperglycemia-related advanced glycation end-products is associated with the altered phosphatidylcholine metabolism in osteoarthritis patients with diabetes. PLoS One 2017; 12:e0184105. [PMID: 28898260 PMCID: PMC5595284 DOI: 10.1371/journal.pone.0184105] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 08/17/2017] [Indexed: 02/04/2023] Open
Abstract
To test whether type 2 diabetic patients have an elevated level of advanced glycation end-products (AGEs) and responsible for altered phosphatidylcholine metabolism, which we recently found to be associated with osteoarthritis (OA) and diabetes mellitus (DM), synovial fluid (SF) and plasma samples were collected from OA patients with and without DM. Hyperglycemia-related AGEs including methylglyoxal (MG), free methylglyoxal-derived hydroimidazolone (MG-H1), and protein bound N-(Carboxymethyl)lysine (CML) and N-(Carboxyethyl)lysine (CEL) levels were measured in both SF and plasma samples using liquid chromatography coupled tandem mass spectrometry methodology. The correlation between these AGEs and phosphatidylcholine acyl-alkyl C34:3 (PC ae C34:3) and C36:3 (PC ae C36:3) were examined. Eighty four patients with knee OA, including 46 with DM and 38 without DM, were included in the study. There was no significant difference in plasma levels of MG, MG-H1, CML, and CEL between OA patients with and without DM. However, the levels of MG and MG-H1, but not CML and CEL in SF were significantly higher in OA patients with DM than in those without (all p ≤0.04). This association strengthened after adjustment for age, body mass index (BMI), sex and hexose level (p<0.02). Moreover, the levels of MG-H1 in SF was negatively and significantly correlated with PC ae C34:3 (ρ = -0.34; p = 0.02) and PC ae C36:3 (ρ = -0.39; P = 0.03) after the adjustment of age, BMI, sex and hexose level. Our data indicated that the production of non-protein bound AGEs was increased within the OA-affected joint of DM patients. This is associated with changes in phosphatidylcholine metabolism and might be responsible for the observed epidemiological association between OA and DM.
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Affiliation(s)
- Weidong Zhang
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland and Labrador, Canada
- School of Pharmaceutical Sciences, Jilin University, Changchun, P.R. China
| | - Edward W. Randell
- Department of Laboratory Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland and Labrador, Canada
| | - Guang Sun
- Discipline of Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland and Labrador, Canada
| | - Sergei Likhodii
- Department of Laboratory Medicine, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland and Labrador, Canada
| | - Ming Liu
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland and Labrador, Canada
| | - Andrew Furey
- Department of Surgery, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland and Labrador, Canada
| | - Guangju Zhai
- Discipline of Genetics, Faculty of Medicine, Memorial University of Newfoundland, St John’s, Newfoundland and Labrador, Canada
- Menzies Research Institute, University of Tasmania, Hobart, Tasmania, Australia
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23
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Rosenberg JH, Rai V, Dilisio MF, Sekundiak TD, Agrawal DK. Increased expression of damage-associated molecular patterns (DAMPs) in osteoarthritis of human knee joint compared to hip joint. Mol Cell Biochem 2017; 436:59-69. [PMID: 28573383 DOI: 10.1007/s11010-017-3078-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 05/25/2017] [Indexed: 01/15/2023]
Abstract
Osteoarthritis (OA) is a degenerative disease characterized by the destruction of cartilage. The greatest risk factors for the development of OA include age and obesity. Recent studies suggest the role of inflammation in the pathogenesis of OA. The two most common locations for OA to occur are in the knee and hip joints. The knee joint experiences more mechanical stress, cartilage degeneration, and inflammation than the hip joint. This could contribute to the increased incidence of OA in the knee joint. Damage-associated molecular patterns (DAMPs), including high-mobility group box-1, receptor for advanced glycation end products, and alarmins (S100A8 and S100A9), are released in the joint in response to stress-mediated chondrocyte and cartilage damage. This facilitates increased cartilage degradation and inflammation in the joint. Studies have documented the role of DAMPs in the pathogenesis of OA; however, the comparison of DAMPs and its influence on OA has not been discussed. In this study, we compared the DAMPs between OA knee and hip joints and found a significant difference in the levels of DAMPs expressed in the knee joint compared to the hip joint. The increased levels of DAMPs suggest a difference in the underlying pathogenesis of OA in the knee and the hip and highlights DAMPs as potential therapeutic targets for OA in the future.
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Affiliation(s)
- John H Rosenberg
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Vikrant Rai
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Matthew F Dilisio
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, 68178, USA.,Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Todd D Sekundiak
- Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE, 68178, USA
| | - Devendra K Agrawal
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, 68178, USA. .,Department of Clinical and Translational Science, The Peekie Nash Carpenter Endowed Chair in Medicine, Creighton University School of Medicine, CRISS II Room 510, 2500 California Plaza, Omaha, NE, 68178, USA.
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24
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Liu H, Mu L, Chen X, Wang J, Wang S, Sun B. Core-Shell Metal-Organic Frameworks/Molecularly Imprinted Nanoparticles as Absorbents for the Detection of Pyrraline in Milk and Milk Powder. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:986-992. [PMID: 28081599 DOI: 10.1021/acs.jafc.6b05429] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A novel core-shell metal-organic framework coated with a dummy template molecularly imprinted polymer (MOF@DMIP) was synthesized by one-pot bulk polymerization for the detection of pyrraline in food samples. The pyrraline analogue pyrrolidine-3-carboxylic acid was used as the template because of its lower cost, and MIL-101 was used as the MOF core owing to its numerous inherent advantages, including high chemical and hydrothermal stabilities. MIL-101@DMIP was used to detect trace pyrraline in foods by solid-phase extraction combined with high-performance liquid chromatography. It exhibited the advantages of faster mass transport, excellent sensitivity, and selectivity. Under optimum conditions, the detection limit of this system was 40.7 μg L-1, and a linear range was from 5 × 10-7 to 2 × 10-3 mol L-1, within relative standard deviations of 4.46-6.87%. The recoveries ranged from 92.23 to 103.87%, indicating the excellent ability of the prepared MIL-101@DMIP to recognize pyrraline in complex food matrices and its potential for application in pyrraline detection.
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Affiliation(s)
- Huilin Liu
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, China
| | - Lin Mu
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, China
| | - Xiaomo Chen
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, China
| | - Jing Wang
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, China
| | - Shuo Wang
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, China
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
| | - Baoguo Sun
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU) , 11 Fucheng Road, Beijing 100048, China
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25
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Abstract
Ageing-associated changes that affect articular tissues promote the development of osteoarthritis (OA). Although ageing and OA are closely linked, they are independent processes. Several potential mechanisms by which ageing contributes to OA have been elucidated. This Review focuses on the contributions of the following factors: age-related inflammation (also referred to as 'inflammaging'); cellular senescence (including the senescence-associated secretory phenotype (SASP)); mitochondrial dysfunction and oxidative stress; dysfunction in energy metabolism due to reduced activity of 5'-AMP-activated protein kinase (AMPK), which is associated with reduced autophagy; and alterations in cell signalling due to age-related changes in the extracellular matrix. These various processes contribute to the development of OA by promoting a proinflammatory, catabolic state accompanied by increased susceptibility to cell death that together lead to increased joint tissue destruction and defective repair of damaged matrix. The majority of studies to date have focused on articular cartilage, and it will be important to determine whether similar mechanisms occur in other joint tissues. Improved understanding of ageing-related mechanisms that promote OA could lead to the discovery of new targets for therapies that aim to slow or stop the progression of this chronic and disabling condition.
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Affiliation(s)
- Richard F Loeser
- Thurston Arthritis Research Center, Division of Rheumatology, Allergy, and Immunology, 3300 Thurston Building, Campus Box 7280, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7280, USA
| | - John A Collins
- Thurston Arthritis Research Center, Division of Rheumatology, Allergy, and Immunology, 3300 Thurston Building, Campus Box 7280, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7280, USA
| | - Brian O Diekman
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, 450 West Drive, Campus Box 7295, Chapel Hill, North Carolina 27599-7295, USA
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