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Wang C, Wei M, Wu Y, Fan HT, Liang ZK, Liu AR, Xin WJ, Feng X. Epigenetic Up-Regulation of ADAMTS4 in Sympathetic Ganglia is Involved in the Maintenance of Neuropathic Pain Following Nerve Injury. Neurochem Res 2023:10.1007/s11064-023-03896-x. [PMID: 36947308 DOI: 10.1007/s11064-023-03896-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/08/2023] [Accepted: 02/17/2023] [Indexed: 03/23/2023]
Abstract
Sympathetic axonal sprouting into dorsal root ganglia is a major phenomenon implicated in neuropathic pain, and sympathetic ganglia blockage may relieve some intractable chronic pain in animal pain models and clinical conditions. These suggest that sympathetic ganglia participated in the maintenance of chronic pain. However, the molecular mechanism underlying sympathetic ganglia-mediated chronic pain is not clear. Here, we found that spared nerve injury treatment upregulated the expression of ADAMTS4 and AP-2α protein and mRNA in the noradrenergic neurons of sympathetic ganglia during neuropathic pain maintenance. Knockdown the ADAMTS4 or AP-2α by injecting specific retro scAAV-TH (Tyrosine Hydroxylase)-shRNA ameliorated the mechanical allodynia induced by spared nerve injury on day 21 and 28. Furthermore, chromatin immunoprecipitation and coimmunoprecipitation assays found that spared nerve injury increased the recruitment of AP-2α to the ADAMTS4 gene promoter, the interaction between AP-2α and histone acetyltransferase p300 and the histone H4 acetylation on day 28. Finally, knockdown the AP-2α reduced the acetylation of H4 on the promoter region of ADAMTS4 gene and suppressed the increase of ADAMTS4 expression induced by spared nerve injury. Together, these results suggested that the enhanced interaction between AP-2α and p300 mediated the epigenetic upregulation of ADAMTS4 in sympathetic ganglia noradrenergic neurons, which contributed to the maintenance of spared nerve injury induced neuropathic pain.
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Affiliation(s)
- Chen Wang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ming Wei
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Wu
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hai-Ting Fan
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zheng-Kai Liang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - An-Ran Liu
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wen-Jun Xin
- Zhongshan School of Medicine and Guangdong Province Key Laboratory of Brain Function and Disease, Sun Yat-sen University, Guangzhou, 510080, China.
- Zhongshan Medical School, Sun Yat-sen University, Zhongshan Rd. 2, Guangzhou, China.
| | - Xia Feng
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
- Department of Anesthesiology, The First Affiliated Hospital, 58 Zhong Shan Rd 2, Guangzhou, 510080, China.
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Theaflavin-3,3 -Digallate Protects Cartilage from Degradation by Modulating Inflammation and Antioxidant Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3047425. [PMID: 35847580 PMCID: PMC9286955 DOI: 10.1155/2022/3047425] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/15/2022] [Indexed: 12/25/2022]
Abstract
Background Osteoarthritis (OA) is a common degenerative joint disease that may be closely linked to inflammation and oxidative stress destroying the balance of cartilage matrix. Theaflavin-3,3′-digallate (TFDG), a natural substance derived from black tea, has been reported to restrict the activity of inflammatory cytokines and effectively eliminate reactive oxygen species (ROS) in various diseases. However, it is not clear whether TFDG can improve OA. Methods Chondrocytes were treated with or without IL-1β and 20 μM and 40 μM TFDG. The effect of TFDG on the proliferation of chondrocytes was detected by CCK8. RT-qPCR was used to detect the gene expression of inflammatory factors, extracellular matrix synthesis, and degradation genes. Western blot and immunofluorescence assays were used to detect the protein expression. The fluorescence intensity of reactive oxygen species labeled by DCFH-DA was detected by flow cytometry. We established an OA rat model by performing destabilized medial meniscus (DMM) surgery to observe whether TFDG can protect chondrocytes under arthritis in vivo. Results TFDG was found to inhibit proinflammatory factors (IL-6, TNF-α, iNOS, and PGE) and matrix-degrading enzymes (MMP13, MMP3, and ADAMTS5) expression and protected extracellular matrix components of chondrocytes (ACAN, COL2, and SOX9). TFDG accelerated the scavenging of ROS caused by IL-1β according to the Nrf2 signaling pathway activation. At the same time, TFDG suppressed the PI3K/AKT/NF-κB and MAPK signaling pathways to delay the inflammatory process. The cartilage of DMM rats receiving TFDG showed lower Osteoarthritis Research Society International (OARSI) scores and expressed higher levels of COL2 and Nrf2 compared with those of rats in the DMM group. Conclusion TFDG could protect cartilage from degradation and alleviate osteoarthritis in rats, which suggests that TFDG has potential as a drug candidate for OA therapy.
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Liu X, Feng Y, Liu W, Li H, Hu Z, Hu S, Ke J, Long X. Toll‐like receptor 2 mediates the degeneration of cartilage in experimental inflammatory TMJOA. Oral Dis 2020. [DOI: 10.1111/odi.13744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xin Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Yaping Feng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Wen Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Huimin Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Zhihui Hu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Shiyu Hu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Jin Ke
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
| | - Xing Long
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) & Key Laboratory of Oral Biomedicine Ministry of Education School & Hospital of Stomatology Wuhan University Wuhan China
- Department of Oral and Maxillofacial Surgery School & Hospital of Stomatology Wuhan University Wuhan China
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Sun L, Wang G, He M, Mei Z, Zhang F, Liu P. Effect and mechanism of the CACNA2D1-CGRP pathway in osteoarthritis-induced ongoing pain. Biomed Pharmacother 2020; 129:110374. [PMID: 32570114 DOI: 10.1016/j.biopha.2020.110374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 06/04/2020] [Accepted: 06/07/2020] [Indexed: 12/27/2022] Open
Abstract
This study built an OA model in rats by monosodium iodoacetate (MIA) injection to determine the effects and mechanism of the voltage-dependent calcium channel subunit alpha-2/delta-1 (CACNA2D1)-calcitonin gene-related protein (CGRP) pathway in osteoarthritis (OA)-induced ongoing pain. CACNA2D1 expression was measured by qPCR assay, western blotting assay, and immunofluorescence. Pain behaviors in rats were assessed with the measurement of thermal paw withdrawal latency (PWL) and mechanical paw withdrawal threshold (PWT). The expression of CACNA2D1, neuropeptide Y (NPY), activating transcription factor 3 (ATF3), CGRP, protein kinase A (PKA), phosphorylated (p)-PKA, adenylyl cyclase (AC), protein kinase C (PKC), p-PKC, phospholipase C (PLC), and mitogen-activated protein kinase (MAPK) signaling pathway proteins were measured, OA rats had higher CACNA2D1 expression than normal rats. Knockdown of CACNA2D1 led to the elevation of the pain threshold of OA rats, and CACNA2D1 over-expression decreased the pain threshold of normal rats. Moreover, CACNA2D1 over-expression inhibited the expression of CGRP, up-regulated the expressions of NPY, ATF3, p-PKA, AC, p-PKC, PLC, p-Jun N-terminal kinase (JNK), and p-p38, and had no significant effect on phosphorylated extracellular signal-regulated kinase (p-ERK) expression in vivo and in vitro. Using this model of MIA-induced OA, we demonstrated that CACNA2D1 might be involved in the process of pain by modulating the CGRP and AC-PKA/PKC/MAPK signaling pathways in the dorsal root ganglion.
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Affiliation(s)
- Liang Sun
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Guodong Wang
- Departments of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China
| | - Meifang He
- Laboratory of General Surgery, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhigang Mei
- Guangzhou Sihe Biotechnology Co., Ltd., Guangzhou, China
| | - Fazhou Zhang
- Guangzhou Sihe Biotechnology Co., Ltd., Guangzhou, China
| | - Ping Liu
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China; Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, China.
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Barreto G, Manninen M, K. Eklund K. Osteoarthritis and Toll-Like Receptors: When Innate Immunity Meets Chondrocyte Apoptosis. BIOLOGY 2020; 9:biology9040065. [PMID: 32235418 PMCID: PMC7235883 DOI: 10.3390/biology9040065] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/26/2020] [Accepted: 03/28/2020] [Indexed: 02/06/2023]
Abstract
Osteoarthritis (OA) has long been viewed as a degenerative disease of cartilage, but accumulating evidence indicates that inflammation has a critical role in its pathogenesis. In particular, chondrocyte-mediated inflammatory responses triggered by the activation of innate immune receptors by alarmins (also known as danger signals) are thought to be involved. Thus, toll-like receptors (TLRs) and their signaling pathways are of particular interest. Recent reports suggest that among the TLR-induced innate immune responses, apoptosis is one of the critical events. Apoptosis is of particular importance, given that chondrocyte death is a dominant feature in OA. This review focuses on the role of TLR signaling in chondrocytes and the role of TLR activation in chondrocyte apoptosis. The functional relevance of TLR and TLR-triggered apoptosis in OA are discussed as well as their relevance as candidates for novel disease-modifying OA drugs (DMOADs).
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Affiliation(s)
- Goncalo Barreto
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, 00014 Helsinki, Finland;
- Translational Immunology Research Program, University of Helsinki, 00014 Helsinki, Finland
- Correspondence: ; Tel.: +358-4585-381-10
| | | | - Kari K. Eklund
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, 00014 Helsinki, Finland;
- Translational Immunology Research Program, University of Helsinki, 00014 Helsinki, Finland
- Orton Research Institute, 00280 Helsinki, Finland;
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YAO W, DAI H, GUI J. [Mechanical stress promotes cartilage repair in inflammatory environment]. Zhejiang Da Xue Xue Bao Yi Xue Ban 2019; 48:517-525. [PMID: 31901026 PMCID: PMC8800764 DOI: 10.3785/j.issn.1008-9292.2019.10.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 07/21/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To investigate the effect and mechanism of mechanical stress on cartilage repair in inflammatory environment. METHODS The chondrogenic progenitor cells (CPCs) were isolated from the knee joint cartilage of patients with osteoarthritis (OA) undergoing total knee arthroplasty. The CPCs were cultured and expanded in a 3-D scaffold constructed with alginate. Intermittent hydrostatic pressure (IHP) was applied in a inflammatory environment induced by IL-1β, and Western blot was used to detect the expression of MAPK signaling pathway proteins. Cell proliferation was detected by CCK-8 method, and the expression of related genes like matrix metallo-proteinases 13 (MMP-13) and a disintegrins and metalloproteinase with thrombospondin motif 5 (ADAMTS-5) was detected by real-time RT-PCR. The anterior cruciate ligament of the rats was cut to construct the knee joint OA model, and the appropriate mechanical stress was constructed with external fixation to distract the knee joint in order to observe the repair of the cartilage and to explore its mechanism. RESULTS Adding 0.01 ng/ml IL-1β in cell culture inhibited the proliferation of CPCs. After IHP application, the expression of MAPK pathway protein was decreased, the mRNA expression of MMP-13 and ADAMTS-5 was reduced. The inhibition of IL-1β on CPCs was counteracted by IHP. Four weeks after the anterior cruciate ligament resected, the articular cartilage degeneration was observed in rats. The Mankin score in the OA treatment (joint distraction) group was lower, and the cartilage repair was better than that of the control group (P<0.01). Animal experiments found that the suitable mechanical stress reduced the expression of P-p38, MMP-13 and COLL-X, inhibited cartilage cells apoptosis and promoted the repair of OA cartilage. CONCLUSIONS Mechanical stress can promote the proliferation of CPCs, reduce the expression of matrix degrading enzymes, and promote the repair of OA cartilage by inhibiting MAPK signaling pathway.
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Affiliation(s)
| | | | - Jianchao GUI
- 桂鉴超(1972—), 男, 博士, 教授, 博士生导师, 主要从事骨关节炎及软骨修复的机制研究; E-mail:
;
https://orcid.org/0000-0002-0876-5265
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Hsieh JL, Jou IM, Wu CL, Wu PT, Shiau AL, Chong HE, Lo YT, Shen PC, Chen SY. Estrogen and mechanical loading-related regulation of estrogen receptor-β and apoptosis in tendinopathy. PLoS One 2018; 13:e0204603. [PMID: 30296306 PMCID: PMC6175495 DOI: 10.1371/journal.pone.0204603] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/11/2018] [Indexed: 12/11/2022] Open
Abstract
Female-dominant tendinopathies are musculoskeletal disorders caused by repetitive hand posture and motion; they are considered overuse syndromes. Both external mechanical stress and changes in hormone levels might affect disease progression. We have previously reported that estrogen receptor-β (ER)-β expression was associated with the pathogenesis of de Quervain's disease. To study the underlying mechanisms, a cyclic stretching culture system was applied to tendon tissue from ovariectomized (OVX) rats. Furthermore, a collagenase I-induced rat tendinopathy model was established to examine the association of ER-β with disease progression. Our results showed that ER-β expression and the number of apoptotic cells were higher and associated with disease severity in rats with tendinopathy. Mechanical stress altered the morphology of primary tenocytes and collagen fiber alignment in tendons, and up-regulated the expression of matrix metalloproteinase-9, ER-β, and interleukin-1β, as well as induced apoptosis in tenocytes and tendon tissue from OVX rats. This is the first report on the effects of ER-β and mechanical stress in tendinopathy. We hope these findings contribute to new pharmacological therapies targeting ER-β signaling pathways to treat tendon-related diseases.
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Affiliation(s)
- Jeng-Long Hsieh
- Department of Medical Laboratory Science and Biotechnology, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - I-Ming Jou
- Department of Orthopedics, E-DA Hospital, Kaohsiung, Taiwan
| | - Chao-Liang Wu
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Ting Wu
- Department of Orthopedics, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ai-Li Shiau
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hao-Earn Chong
- Department of Medical Laboratory Science and Biotechnology, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Yu-Ting Lo
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Chuan Shen
- Department of Orthopedics, Tainan Hospital, Ministry of Health and Welfare, Tainan, Taiwan
- Department of Nursing, Chung Hwa University of Medical Technology, Tainan, Taiwan
- * E-mail: (PCS); (SYC)
| | - Shih-Yao Chen
- Department of Nursing, Chung Hwa University of Medical Technology, Tainan, Taiwan
- Department of Internal Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- * E-mail: (PCS); (SYC)
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Shang X, Wang Z, Tao H. Mechanism and therapeutic effectiveness of nerve growth factor in osteoarthritis pain. Ther Clin Risk Manag 2017; 13:951-956. [PMID: 28814877 PMCID: PMC5546917 DOI: 10.2147/tcrm.s139814] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Osteoarthritis (OA) is the most common form of articular joint arthritis and a cause of significant morbidity. In this review, we present the role of nerve growth factor (NGF) in pain generation, relationship between NGF and OA pain, and pathogenic factors (interleukin-1β, transforming growth factor-β1, mechanical loading, and adipokines) involved in OA development. Since NGF blocking is an efficient way to inhibit OA-associated pain, we summarize four categories of drugs that target NGF/tropomyosin receptor kinase A (TrkA) signaling. In addition, we discuss the future of NGF/TrkA antagonists and underline their potential for use in OA pain relief. A better understanding of the causes and treatment of OA will facilitate the development of more effective methods of OA pain management.
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Affiliation(s)
- Xiushuai Shang
- Department of Orthopedic Surgery, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Zhaofei Wang
- Department of Orthopedic Surgery, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Hairong Tao
- Department of Orthopedic Surgery, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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Xiao L, Xu HG, Wang H, Liu P, Liu C, Shen X, Zhang T, Xu YM. Intermittent Cyclic Mechanical Tension Promotes Degeneration of Endplate Cartilage via the Nuclear Factor-κB Signaling Pathway: an in Vivo Study. Orthop Surg 2017; 8:393-9. [PMID: 27627724 DOI: 10.1111/os.12260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 06/28/2016] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To establish a rabbit model for investigating the effects of intermittent cyclic mechanical tension (ICMT) on promoting degeneration of endplate cartilage. METHODS Forty New Zealand white rabbits were subjected to surgery and randomly divided into three equal groups as follows: control group (no treatment, n = 10), sham group (animals underwent a sham operation but were not subjected to mechanical tensile strain, n = 15) and loaded group (discs were subjected to 1.5 MPa external tensile loading by using an external loading device during the animals' daily activity, n = 15). Mechanical tensile strain was applied for 8 h/d. The animals were examined radiologically after 8 weeks treatment and then killed for removal of endplate cartilage tissue samples from their spines. Histological staining was performed to examine the morphology of endplate cartilage tissue. Multiple strategies were employed to examine degeneration of endplate cartilage and nuclear factor (NF)-κB signaling pathway activation. RESULTS After ICMT loading for 56 days, radiology revealed ossification, hyperosteogeny and stenosis in the intervertebral spaces. Examination of hematoxylin and eosin staining of sections of endplate cartilage showed significant damage as the load duration increased in the ICMT loading group. Expression of aggrecan (ACAN), type II collagen (COL-2A), SRY-related high mobility group-box gene 9 (SOX9) was down-regulated (FACAN = 21.515, P < 0.01; FCOL-2A = 6.670, P = 0.05; FSOX9 = 7.888, P < 0.05), whereas that of matrix metallopeptidase 13 (MMP13) was up-regulated (FMMP13 = 14.120, P < 0.01) after ICMT. Western blot and immunofluorescence revealed that expression of protein was consistent with gene expression results. Additionally, ICMT loading can lead to NF-κB signaling pathway activation as well as degeneration of endplate cartilage. CONCLUSION These experiments indicate that ICMT contributes to the activation of NF-κB signaling pathway in vivo and that the NF-κB signaling pathway further up-regulates MMP13, leading to degeneration of endplate cartilage.
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Affiliation(s)
- Liang Xiao
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Hong-Guang Xu
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China.
| | - Hong Wang
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Ping Liu
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Chen Liu
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Xiang Shen
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Tao Zhang
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Yong-Ming Xu
- Department of Orthopaedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, China
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Yang Z, Wu B, Jia S, Zhao Y, Hou R, Liu X, Wang X, Chen L, Yang X, Lei D, Wang L. The mechanically activated p38/MMP-2 signaling pathway promotes bone marrow mesenchymal stem cell migration in rats. Arch Oral Biol 2017; 76:55-60. [PMID: 28126687 DOI: 10.1016/j.archoralbio.2017.01.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 11/01/2016] [Accepted: 01/18/2017] [Indexed: 01/24/2023]
Abstract
OBJECTIVE The aim of the present study was to investigate the effect of static strain on bone marrow mesenchymal stem cell (BMMSC) migration and whether the p38/matrix metalloproteinase-2 (MMP-2) axis plays a role in induction of BMMSC migration under mechanical strain. DESIGN Both in vivo and in vitro investigations were performed. Twelve adult male Sprague-Dawley rats were randomly divided into 2 groups (n=6 per group). Rats in the experimental group underwent right mandibular distraction osteogenesis, whereas rats in the control group were subjected to osteotomy in the mandible without distraction. Immunohistochemistry and immunofluorescence were performed to evaluate phospho-p38 (p-p38) and Nestin expression. BMMSCs were isolated from rat mandibles. BMMSCs in the experimental group were subjected to static mechanical strain for 2h, whereas those in the control group underwent no strain. The biological roles of static strain and the p38/MMP-2 axis in BMMSC migration were evaluated by Transwell assays and western blotting by inhibiting p38 phosphorylation. RESULTS There were significantly more Nestin+ cells in the bone calluses of the experimental group than in those of the control group. In addition, Nestin+/p-p38+ cell numbers were significantly higher in the experimental group than in the control group, indicating that static strain activated p38 signaling in BMMSCs in vivo. In accordance with in vivo results, static strain in vitro stimulated phosphorylation of p38 in BMMSCs. Furthermore, expression of MMP-2 was elevated in BMMSCs under static strain compared with the control, and strain-induced MMP-2 expression was abolished by inhibition of p38 phosphorylation in BMMSCs. Moreover, Transwell assay results showed that static strain promoted BMMSC migration, which was abolished by inhibition of p38 phosphorylation. CONCLUSIONS The present study demonstrated that static strain can promote the migration ability of BMMSCs via p38/MMP-2 signaling. To the best of our knowledge, this study is the first report demonstrating that the p38/MMP-2 axis governs BMMSC migration under static mechanical strain.
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Affiliation(s)
- Zihui Yang
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Baolei Wu
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Sen Jia
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yinghua Zhao
- Department of Prosthodontics, Stomatology Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Rui Hou
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xiaochang Liu
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xinge Wang
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Litong Chen
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xinjie Yang
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Delin Lei
- State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China.
| | - Lei Wang
- Department of Oral & Maxillofacial-Head and Neck Oncology, School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China; State Key Laboratory of Military Stomatology, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, China.
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Wang P, Li SS, Wang XH. Myricetin Exerts Anti-osteoarthritic Effects in IL-1β Stimulated SW1353 Cells via Regulating Matrix Metalloproteinases and Modulating JNK/P38MAPK/Ap-1/c-Fos and JAK/STAT Signalling. INT J PHARMACOL 2016. [DOI: 10.3923/ijp.2016.440.450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Na JY, Song K, Kim S, Kwon J. Rutin protects rat articular chondrocytes against oxidative stress induced by hydrogen peroxide through SIRT1 activation. Biochem Biophys Res Commun 2016; 473:1301-1308. [PMID: 27086847 DOI: 10.1016/j.bbrc.2016.04.064] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 04/13/2016] [Indexed: 12/16/2022]
Abstract
The progressive degeneration and ossification of articular chondrocytes are main symptoms in the pathogenesis of osteoarthritis (OA). Several flavonoids may provide an adjunctive alternative for the management of moderate OA in humans. Rutin, a natural flavone derivative (quercetin-3-rhamnosylglucoside), is well known for its potent anti-inflammatory and anti-oxidant properties against oxidative stress. However, the protective function of rutin related to OA, which is characterized by deterioration of articular cartilage, remains unclear. The present study investigated the protective effects of rutin, an activator of silent information regulator 1 (SIRT1), involved in the inhibition of NF-κB/MAPK signaling pathway in hydrogen peroxide (H2O2)-induced oxidative stress in rat chondrocytes. SIRT1 activation by rutin attenuated levels of inflammatory cytokines and NF-κB/MAPK signaling, whereas the inhibition of SIRT1 by sirtinol counteracted the beneficial effects of rutin in H2O2-treated chondrocytes. The findings of these studies suggested the potential involvement of SIRT1 in the pathogenesis of OA, and indicated that rutin is a possible therapeutic option for OA.
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Affiliation(s)
- Ji-Young Na
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University, 79 Gobongro, Iksan, 570-752, Republic of Korea
| | - Kibbeum Song
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University, 79 Gobongro, Iksan, 570-752, Republic of Korea
| | - Sokho Kim
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University, 79 Gobongro, Iksan, 570-752, Republic of Korea.
| | - Jungkee Kwon
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Chonbuk National University, 79 Gobongro, Iksan, 570-752, Republic of Korea.
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13
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Cyclic tensile stress of human annulus fibrosus cells induces MAPK activation: involvement in proinflammatory gene expression. Osteoarthritis Cartilage 2016; 24:679-87. [PMID: 26687822 DOI: 10.1016/j.joca.2015.11.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 11/05/2015] [Accepted: 11/24/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To study the role of mitogen-activated protein kinases (MAPKs) in human annulus fibrosus (AF) cells subjected to cyclic tensile stress (CTS). DESIGN An in vitro system for CTS studies was established using AF cultures on fibronectin-coated silicone dishes. MAPK phosphorylation was studied by western analysis, while gene expression was followed by qRT-PCR. DNA synthesis was assessed by both tritiated thymidine incorporation and flow cytometry, and collagen synthesis using tritiated proline incorporation and the protease-free collagenase method. RESULTS All three MAPKs studied, i.e., ERK, SAPK/JNK, and p38 were found to be phosphorylated immediately after CTS application within physiological range. A second wave of phosphorylation appeared at later time points. MAPK activation was elevated at higher CTS magnitudes, but independent of the frequency. CTS did not stimulate DNA synthesis neither extracellular matrix turnover, but it stimulated the proinflammatory genes, COX-2, IL-6, and IL-8. This stimulation was more intense at the highest magnitude (8%) tested and at the median frequency (1 Hz) and time interval (12 h). Blocking of ERK, SAPK/JNK, and p38 MAPK inhibited the CTS-induced stimulation of COX-2 and IL-8, while IL-6 expression was mediated only by SAPK/JNK and p38 MAPK. CONCLUSIONS We have described for the first time the activation of MAPKs in human AF cells in response to CTS and showed that it drives an inflammatory reaction. These observations shed light on the mechanisms of intervertebral disc (IVD) cell responses to mechanical stress, contributing to the understanding of disc pathophysiology and possibly to the design of novel therapeutic interventions.
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14
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Yang X, Guan Y, Tian S, Wang Y, Sun K, Chen Q. Mechanical and IL-1β Responsive miR-365 Contributes to Osteoarthritis Development by Targeting Histone Deacetylase 4. Int J Mol Sci 2016; 17:436. [PMID: 27023516 PMCID: PMC4848892 DOI: 10.3390/ijms17040436] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 12/21/2022] Open
Abstract
Mechanical stress plays an important role in the initiation and progression of osteoarthritis. Studies show that excessive mechanical stress can directly damage the cartilage extracellular matrix and shift the balance in chondrocytes to favor catabolic activity over anabolism. However, the underlying mechanism remains unknown. MicroRNAs (miRNAs) are emerging as important regulators in osteoarthritis pathogenesis. We have found that mechanical loading up-regulated microRNA miR-365 in growth plate chondrocytes, which promotes chondrocyte differentiation. Here, we explored the role of the mechanical responsive microRNA miR-365 in pathogenesis of osteoarthritis (OA). We found that miR-365 was up-regulated by cyclic loading and IL-1β stimulation in articular chondrocytes through a mechanism that involved the transcription factor NF-κB. miR-365 expressed significant higher level in rat anterior cruciate ligament (ACL) surgery induced OA cartilage as well as human OA cartilage from primary OA patients and traumatic OA Patients. Overexpression of miR-365 in chondrocytes increases gene expression of matrix degrading enzyme matrix metallopeptidase 13 (MMP13) and collagen type X (Col X). The increase in miR-365 expression in OA cartilage and in response to IL-1 may contribute to the abnormal gene expression pattern characteristic of OA. Inhibition of miR-365 down-regulated IL-1β induced MMP13 and Col X gene expression. We further showed histone deacetylase 4 (HDAC4) is a direct target of miR-365, which mediates mechanical stress and inflammation in OA pathogenesis. Thus, miR-365 is a critical regulator of mechanical stress and pro-inflammatory responses, which contributes cartilage catabolism. Manipulation of the expression of miR-365 in articular chondrocytes by miR-365 inhibitor may be a potent therapeutic target for the prevention and treatment of osteoarthritis.
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Affiliation(s)
- Xu Yang
- Department of Orthopedics, the Affiliated Hospital of Qingdao University, 1677 Wutaishan Rd, Qingdao 266000, China.
| | - Yingjie Guan
- Cell and Molecular Biology Laboratory, Department of Orthopedics, Alpert Medical School of Brown University/Rhode Island Hospital, Providence, RI 02903, USA.
| | - Shaoqi Tian
- Department of Orthopedics, the Affiliated Hospital of Qingdao University, 1677 Wutaishan Rd, Qingdao 266000, China.
| | - Yuanhe Wang
- Department of Orthopedics, the Affiliated Hospital of Qingdao University, 1677 Wutaishan Rd, Qingdao 266000, China.
| | - Kang Sun
- Department of Orthopedics, the Affiliated Hospital of Qingdao University, 1677 Wutaishan Rd, Qingdao 266000, China.
| | - Qian Chen
- Cell and Molecular Biology Laboratory, Department of Orthopedics, Alpert Medical School of Brown University/Rhode Island Hospital, Providence, RI 02903, USA.
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15
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Xu HG, Zheng Q, Song JX, Li J, Wang H, Liu P, Wang J, Wang CD, Zhang XL. Intermittent cyclic mechanical tension promotes endplate cartilage degeneration via canonical Wnt signaling pathway and E-cadherin/β-catenin complex cross-talk. Osteoarthritis Cartilage 2016; 24:158-68. [PMID: 26247612 DOI: 10.1016/j.joca.2015.07.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 07/20/2015] [Accepted: 07/27/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study aimed to investigate the role of the Wnt/β-catenin signaling pathway and E-cadherin/β-catenin complex in intermittent cyclic mechanical tension (ICMT)-induced endplate cartilage degeneration. DESIGN β-Catenin expression was measured in disc samples obtained from patients with disc degeneration and those with cervical vertebrae fracture or dislocation. Histological staining was performed to examine the disc tissue morphology and extracellular matrix after application of ICMT in vitro and in vivo. Multiple strategies were employed to examine activation of Wnt/β-catenin signaling after ICMT application in vivo and in vitro. Co-immunoprecipitation was performed to examine the interaction between E-cadherin and β-catenin. Pathway-specific inhibitors and an E-cadherin expression plasmid were used to regulate Wnt/β-catenin signaling and E-cadherin expression. RESULTS β-Catenin protein expression was elevated significantly, whereas cartilaginous genes were down-regulated in endplate cartilage samples obtained from patients with disc degeneration. ICMT loading led to Wnt/β-catenin signaling activation and the loss of the chondrogenic phenotype of endplate chondrocytes in both an in vivo rabbit model and in vitro endplate chondrocyte culture system. Inhibition of Wnt/β-catenin signaling suppressed the decrease in ICMT-induced cartilaginous gene expression. Furthermore, E-cadherin expression was inhibited by ICMT stimulation, resulting in a decrease in the interaction between E-cadherin and β-catenin proteins. Over-expression of E-cadherin rescued the cartilaginous gene expression by enhancing the interaction between E-cadherin and β-catenin proteins. CONCLUSIONS ICMT promotes endplate cartilage degeneration via activation of Wnt/β-catenin signaling and suppression of physical protein-protein interactions between E-cadherin and β-catenin.
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Affiliation(s)
- H-g Xu
- Department of Orthopedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, Anhui, China.
| | - Q Zheng
- Department of Orthopedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, Anhui, China
| | - J-x Song
- Department of Orthopedic Surgery, Chinese Medicine Hospitals of Wuhu, Wuhu, 241001, Anhui, China
| | - J Li
- Department of Cell Biology and Genetics, Zunyi Medical College, Zunyi, 563003, Guizhou, China
| | - H Wang
- Department of Orthopedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, Anhui, China
| | - P Liu
- Department of Orthopedic Surgery, Yijishan Hospital, Wannan Medical College, Wuhu, 241001, Anhui, China
| | - J Wang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - C-d Wang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China
| | - X-l Zhang
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200011, China.
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Astragalin inhibits IL-1β-induced inflammatory mediators production in human osteoarthritis chondrocyte by inhibiting NF-κB and MAPK activation. Int Immunopharmacol 2015; 25:83-7. [PMID: 25637445 DOI: 10.1016/j.intimp.2015.01.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 01/06/2015] [Accepted: 01/20/2015] [Indexed: 12/20/2022]
Abstract
Astragalin, a bioactive component isolated from Rosa agrestis, has been described to exhibit anti-inflammatory activity. The aim of this study was to investigate the anti-inflammatory effects and the underlying mechanisms of astragalin on IL-1β-stimulated human osteoarthritis chondrocyte. The production of NO and PGE2 was detected by Griess reaction and ELISA. The expression of iNOS and COX-2 was detected by western blotting. The expression of NF-κB and MAPKs was detected by western blot analysis. We found that astragalin dose-dependently inhibited IL-1β-induced NO and PGE2 production, as well as iNOS and COX-2 expression. Meanwhile, western blot analysis showed that astragalin inhibited IL-1β-induced NF-κB and MAPK activation in human osteoarthritis chondrocyte. In addition, astragalin was found to activate PPAR-γ. The inhibition of astragalin on IL-1β-induced NO and PGE2 production can be reversed by PPAR-γ antagonist GW9662. Astragalin suppressed IL-1β-induced inflammatory mediators via activating PPAR-γ, which subsequently inhibited IL-1β-induced NF-κB and MAPK activation. Astragalin may be a potential agent in the treatment of osteoarthritis.
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