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Yao Q, He L, Bao C, Yan X, Ao J. The role of TNF-α in osteoporosis, bone repair and inflammatory bone diseases: A review. Tissue Cell 2024; 89:102422. [PMID: 39003912 DOI: 10.1016/j.tice.2024.102422] [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: 10/14/2023] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 07/16/2024]
Abstract
Tumour necrosis factor alpha (TNF-α) is a pleiotropic cytokine synthesised primarily by mononuclear cells; it has a potent pro-inflammatory effect, playing a crucial role in metabolic, immune, and inflammatory diseases. This cytokine has been studied in various biological systems. In bone tissue, TNF-α plays an integral role in skeletal disorders such as osteoporosis, fracture repair and rheumatoid arthritis through its involvement in regulating the balance between osteoblasts and osteoclasts, mediating inflammatory responses, promoting angiogenesis and exacerbating synovial proliferation. The biological effect TNF-α exerts in this context is determined by a combination of the signalling pathway it activates, the type of receptor it binds, and the concentration and duration of exposure. This review summarises the participation and pathophysiological role of TNF-α in osteoporosis, bone damage repair, chronic immunoinflammatory bone disease and spinal cord injury, and discusses its main mechanisms.
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Affiliation(s)
| | - Li He
- Affiliated Hospital of Zunyi Medical University, China.
| | | | - Xuhang Yan
- Affiliated Hospital of Zunyi Medical University, China.
| | - Jun Ao
- Affiliated Hospital of Zunyi Medical University, China.
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Liu X, Liu X, Wang H, Chen M, Zhang G, Ren D, Zhang N, Wei W. Quantitative proteomic analysis of circulating exosomes reveals the mechanism by which Triptolide protects against collagen-induced arthritis. Immun Inflamm Dis 2024; 12:e1322. [PMID: 38888462 PMCID: PMC11184934 DOI: 10.1002/iid3.1322] [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: 12/21/2023] [Revised: 06/03/2024] [Accepted: 06/07/2024] [Indexed: 06/20/2024] Open
Abstract
INTRODUCTION Triptolide (TP), a natural product derived from the herbal medicine Tripterygium wilfordii, exhibits potent immunosuppressive activity. However, the mechanisms underlying its effects in rheumatoid arthritis remain incompletely understood. METHODS Collagen-induced arthritis (CIA) model was induced in Sprague-Dawley rats by immunization with bovine type II collagen, and TP was administrated as treatment. The therapeutic effect of TP was evaluated based on paw swelling, histopathology, and serum levels of inflammatory factors. Exosomes isolated from rat serum were characterized by transmission electron microscopy, dynamic light scattering, and western blot analysis. Proteomic profiling of exosomes was analyzed by direct DIA quantitative proteomics analysis. Gene ontology and the Kyoto Encyclopedia of Genes and Genomes databases were employed for enrichment analysis related to molecular function, biological processes, and signaling pathways. Western blot analysis was used to analyze differentially expressed proteins. RESULTS TP treatment ameliorated arthritic phenotypes in CIA rats as evidenced by reduced arthritis score, paw swelling, pathological injury severity scores, and serum levels of inflammatory cytokines. The proteomic analysis revealed that TP treatment significantly inhibited complement and coagulation cascades, interleukin-17 signaling pathway, and cholesterol metabolism, which were reactivated in CIA rats. Importantly, lipocalin 2 (LCN2) and myeloperoxidase (MPO) levels were markedly upregulated in the CIA group but suppressed upon TP administration. Furthermore, in synovial tissues, LCN2 and MPO expression levels were also elevated in the CIA group but decreased following TP treatment. CONCLUSION Our findings demonstrate that TP alleviates CIA, possibly through modulation of exosomal LCN2 and MPO proteins.
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Affiliation(s)
- Xiuchan Liu
- Department of Infectious DiseasesTianjin HospitalTianjinChina
- Department of Rheumatology and ImmunologyTianjin Medical University General HospitalTianjinChina
| | - Xu Liu
- Department of Infectious DiseasesTianjin Medical University General Hospital, Binhai HospitalTianjinChina
| | - Hui Wang
- Department of Rheumatology and ImmunologyTianjin Medical University General HospitalTianjinChina
| | - Ming Chen
- Department of Rheumatology and ImmunologyTianjin Medical University General HospitalTianjinChina
| | - Geng Zhang
- Department of Infectious DiseasesTianjin Medical University Baodi Clinical CollegeTianjinChina
| | - Dongyun Ren
- Department of Infectious DiseasesTianjin HospitalTianjinChina
| | - Na Zhang
- Department of Rheumatology and ImmunologyTianjin Medical University General HospitalTianjinChina
| | - Wei Wei
- Department of Rheumatology and ImmunologyTianjin Medical University General HospitalTianjinChina
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Ge M, Wu L, He F, Tai Y, Fang R, Han D, Guo P, Liu H, Hu Y, Xu S, Wei W, Wang Q. CP-25 inhibits the hyperactivation of rheumatic synoviocytes by suppressing the switch in G αs-G αi coupling to the β 2-adrenergic receptor. Cell Commun Signal 2023; 21:346. [PMID: 38037039 PMCID: PMC10688045 DOI: 10.1186/s12964-023-01358-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/16/2023] [Indexed: 12/02/2023] Open
Abstract
In essence, the β2 adrenergic receptor (β2AR) plays an antiproliferative role by increasing the intracellular cyclic 3',5'-adenosine monophosphate (cAMP) concentration through Gαs coupling, but interestingly, β2AR antagonists are able to effectively inhibit fibroblast-like synoviocytes (FLSs) proliferation, thus ameliorating experimental RA, indicating that the β2AR signalling pathway is impaired in RA FLSs via unknown mechanisms. The local epinephrine (Epi) level was found to be much higher in inflammatory joints than in normal joints, and high-level stimulation with Epi or isoproterenol (ISO) directly promoted FLSs proliferation and migration due to impaired β2AR signalling and cAMP production. By applying inhibitor of receptor internalization, and small interfering RNA (siRNA) of Gαs and Gαi, and by using fluorescence resonance energy transfer and coimmunoprecipitation assays, a switch in Gαs-Gαi coupling to β2AR was observed in inflammatory FLSs as well as in FLSs with chronic ISO stimulation. This Gαi coupling was then revealed to be initiated by G protein coupled receptor kinase 2 (GRK2) but not β-arrestin2 or protein kinase A-mediated phosphorylation of β2AR. Inhibiting the activity of GRK2 with the novel GRK2 inhibitor paeoniflorin-6'-O-benzene sulfonate (CP-25), a derivative of paeoniflorin, or the accepted GRK2 inhibitor paroxetine effectively reversed the switch in Gαs-Gαi coupling to β2AR during inflammation and restored the intracellular cAMP level in ISO-stimulated FLSs. As expected, CP-25 significantly inhibited the hyperplasia of FLSs in a collagen-induced arthritis (CIA) model (CIA FLSs) and normal FLSs stimulated with ISO and finally ameliorated CIA in rats. Together, our findings revealed the pathological changes in β2AR signalling in CIA FLSs, determined the underlying mechanisms and identified the pharmacological target of the GRK2 inhibitor CP-25 in treating CIA. Video Abstract.
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Affiliation(s)
- Mingli Ge
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Li Wu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, China
| | - Feng He
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Yu Tai
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Ruhong Fang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Dafei Han
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Paipai Guo
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China
| | - Hao Liu
- School of Pharmacy, Bengbu Medical College, Bengbu, 233030, China
| | - Yong Hu
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Shenglin Xu
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China.
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China.
| | - Qingtong Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, 230032, China.
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Zheng X, Qiu J, Gao N, Jiang T, Li Z, Zhang W, Gong Y, Hong Z, Hong H. Paroxetine Attenuates Chondrocyte Pyroptosis and Inhibits Osteoclast Formation by Inhibiting NF-κB Pathway Activation to Delay Osteoarthritis Progression. Drug Des Devel Ther 2023; 17:2383-2399. [PMID: 37605762 PMCID: PMC10440089 DOI: 10.2147/dddt.s417598] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/06/2023] [Indexed: 08/23/2023] Open
Abstract
Background Osteoarthritis (OA), a common chronic joint disease, is characterized by cartilage degeneration and subchondral bone reconstruction. NF-κB signaling pathway-activated inflammation and NLRP3-induced pyroptosis play essential roles in the development of OA. In this study, we examine whether paroxetine can inhibit pyroptosis and reduce osteoclast formation, thereby delaying the destruction of knee joints. Methods We employed high-density cultures, along with quantitative polymerase chain reactions and Western blotting techniques, to investigate the effects of paroxetine on extracellular matrix synthesis and degradation. The expression levels of NF-κB and pyroptosis-related signaling pathway proteins were examined by Western blotting and immunofluorescence. Furthermore, the impact of paroxetine on RANKL-induced osteoclast formation was evaluated through TRAP staining and F-actin ring fluorescence detection. To investigate the role of paroxetine in vivo, we constructed a mouse model with destabilization of the medial meniscus (DMM) surgery. Safranin O-Fast Green staining, Hematoxylin-Eosin staining, and immunohistochemistry were conducted to observe the extent of knee joint cartilage deformation. In addition, TRAP staining was used to observe the formation of osteoclasts in the subchondral bone. Results In the in vitro experiments with ATDC5, paroxetine treatment attenuated IL-1β-induced activation of the pyroptosis-related pathway and suppressed extracellular matrix catabolism by inhibiting the NF-kB signaling pathway. In addition, paroxetine treatment decreased the expression of RANKL-induced osteoclast marker genes and reduced osteoclast formation. In animal experiments conducted in vivo, mice treated with paroxetine exhibited thicker knee cartilage with a smoother surface compared to the DMM group. Additionally, the formation of osteoclasts in the subchondral bone was reduced in the paroxetine-treated mice. Further analysis revealed that paroxetine treatment played a role in preserving the balance of the extracellular matrix and delaying knee joint degeneration. Conclusion Paroxetine can inhibit pyroptosis and reduce osteoclast formation via inhibiting the NF-κB signaling pathway, suggesting that it may have therapeutic effects in patients with OA.
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Affiliation(s)
- Xiaohang Zheng
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Jianxin Qiu
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Ning Gao
- Department of Cardiovascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People’s Republic of China
| | - Ting Jiang
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Ze Li
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Weikang Zhang
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Yuhang Gong
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Zhenghua Hong
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
| | - Huaxing Hong
- Orthopedic Department, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
- Enze Medical Research Center, Taizhou Hospital Affiliated to Wenzhou Medical University, Linhai, People’s Republic of China
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Chen Y, Gu Y, Xiong X, Zheng Y, Liu X, Wang W, Meng G. Roles of the adaptor protein tumor necrosis factor receptor type 1-associated death domain protein (TRADD) in human diseases. Biomed Pharmacother 2022; 153:113467. [DOI: 10.1016/j.biopha.2022.113467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 11/02/2022] Open
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Cheng H, Guo P, Su T, Jiang C, Zhu Z, Wei W, Zhang L, Wang Q. G protein-coupled receptor kinase type 2 and β-arrestin2: Key players in immune cell functions and inflammation. Cell Signal 2022; 95:110337. [DOI: 10.1016/j.cellsig.2022.110337] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 02/07/2023]
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Li XF, Wu S, Yan Q, Wu YY, Chen H, Yin SQ, Chen X, Wang H, Li J. PTEN Methylation Promotes Inflammation and Activation of Fibroblast-Like Synoviocytes in Rheumatoid Arthritis. Front Pharmacol 2021; 12:700373. [PMID: 34305608 PMCID: PMC8296842 DOI: 10.3389/fphar.2021.700373] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/28/2021] [Indexed: 12/16/2022] Open
Abstract
Rheumatoid arthritis (RA) is characterized by a tumor-like expansion of the synovium and subsequent destruction of adjacent articular cartilage and bone. In our previous work we showed that phosphatase and tension homolog deleted on chromosome 10 (PTEN) contributes to the activation of fibroblast-like synoviocytes (FLS) in adjuvant-induced arthritis (AIA), but the underlying mechanism is not unknown. In this study, we show that PTEN is downregulated while DNA methyltransferase (DNMT)1 is upregulated in FLS from RA patients and a rat model of AIA. DNA methylation of PTEN was increased by administration of tumor necrosis factor (TNF)-α in FLS of RA patients, as determined by chromatin immunoprecipitation and methylation-specific PCR. Treatment with the methylation inhibitor 5-azacytidine suppressed cytokine and chemokine release and FLS activation in vitro and alleviated paw swelling in vivo. PTEN overexpression reduced inflammation and activation of FLS via protein kinase B (AKT) signaling in RA, and intra-articular injection of PTEN-expressing adenovirus into the knee of AIA rats markedly reduced inflammation and paw swelling. Thus, PTEN methylation promotes the inflammation and activation of FLS in the pathogenesis of RA. These findings provide insight into the molecular basis of articular cartilage destruction in RA, and indicate that therapeutic strategies that prevent PTEN methylation may an effective treatment.
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Affiliation(s)
- Xiao-Feng Li
- Inflammation and Immune Mediated Disease Laboratory of Anhui Province, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China.,Postdoctoral Station of Clinical Medicine of Anhui Medical University, Hefei, China
| | - Sha Wu
- Inflammation and Immune Mediated Disease Laboratory of Anhui Province, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Qi Yan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yuan-Yuan Wu
- Inflammation and Immune Mediated Disease Laboratory of Anhui Province, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - He Chen
- Departments of Clinical Laboratory, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Su-Qin Yin
- Inflammation and Immune Mediated Disease Laboratory of Anhui Province, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Xin Chen
- Inflammation and Immune Mediated Disease Laboratory of Anhui Province, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Hua Wang
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jun Li
- Inflammation and Immune Mediated Disease Laboratory of Anhui Province, School of Pharmacy, Anhui Institute of Innovative Drugs, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
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