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He Y, Lu S, Chen W, Yang L, Li F, Zhou P, Chen Z, Wan R, Zhang Z, Sun Y, Lin J, Chen Y, Luo Z, Xu C, Chen S. Exosomes derived from tendon stem/progenitor cells enhance tendon-bone interface healing after rotator cuff repair in a rat model. Bioact Mater 2024; 40:484-502. [PMID: 39040569 PMCID: PMC11260958 DOI: 10.1016/j.bioactmat.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 07/24/2024] Open
Abstract
The rate of retear after surgical repair remains high. Mesenchymal stem cells (MSCs) have been extensively employed in regenerative medicine for several decades. However, safety and ethical concerns constrain their clinical application. Tendon Stem/Progenitor Cells (TSPCs)-derived exosomes have emerged as promising cell-free therapeutic agents. Therefore, urgent studies are needed to investigate whether TSPC-Exos could enhance tendon-bone healing and elucidate the underlying mechanisms. In this study, TSPC-Exos were found to promote the proliferation, migration, and expression of fibrogenesis markers in BMSCs. Furthermore, TSPC-Exos demonstrated an ability to suppress the polarization of M1 macrophages while promoting M2 macrophage polarization. In a rat model of rotator cuff repair, TSPC-Exos modulated inflammation and improved the histological structure of the tendon-bone interface, the biomechanical properties of the repaired tendon, and the function of the joint. Mechanistically, TSPC-Exos exhibited high expression of miR-21a-5p, which regulated the expression of PDCD4. The PDCD4/AKT/mTOR axis was implicated in the therapeutic effects of TSPC-Exos on proliferation, migration, and fibrogenesis in BMSCs. This study introduces a novel approach utilizing TSPC-Exos therapy as a promising strategy for cell-free therapies, potentially benefiting patients with rotator cuff tear in the future.
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Affiliation(s)
- Yanwei He
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Shihao Lu
- Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Wenbo Chen
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Li Yang
- Department of Rheumatology and Immunology, Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Fangqi Li
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Peng Zhou
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, Aachen, 52074, Germany
| | - Zan Chen
- Department of Orthopaedics, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Renwen Wan
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Zifan Zhang
- Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Yaying Sun
- Department of Sports Medicine, Shanghai General Hospital, Shanghai Jiaotong University, Shanghai, 200080, China
| | - Jinrong Lin
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Yisheng Chen
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
| | - Chen Xu
- Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Shiyi Chen
- Department of Sports Medicine, Huashan Hospital Fudan University, Shanghai, 200040, China
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Zhou JF, Zhang MR, Wang Q, Li MZ, Bai JS, Dai Q, Zhang YH, Yan MX, Li XH, Chen J, Liu YY, Liu CC, Ye J, Zhou B. Two novel compounds inhibit Flavivirus infection in vitro and in vivo by targeting lipid metabolism. J Virol 2024:e0063524. [PMID: 39158346 DOI: 10.1128/jvi.00635-24] [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: 06/10/2024] [Accepted: 07/10/2024] [Indexed: 08/20/2024] Open
Abstract
Flavivirus infection capitalizes on cellular lipid metabolism to remodel the cellular intima, creating a specialized lipid environment conducive to viral replication, assembly, and release. The Japanese encephalitis virus (JEV), a member of the Flavivirus genus, is responsible for significant morbidity and mortality in both humans and animals. Currently, there are no effective antiviral drugs available to combat JEV infection. In this study, we embarked on a quest to identify anti-JEV compounds within a lipid compound library. Our research led to the discovery of two novel compounds, isobavachalcone (IBC) and corosolic acid (CA), which exhibit dose-dependent inhibition of JEV proliferation. Time-of-addition assays indicated that IBC and CA predominantly target the late stage of the viral replication cycle. Mechanistically, JEV nonstructural proteins 1 and 2A (NS1 and NS2A) impede 5'-adenosine monophosphate (AMP)-activated protein kinase (AMPK) activation by obstructing the liver kinase B1 (LKB1)-AMPK interaction, resulting in decreased p-AMPK expression and a consequent upsurge in lipid synthesis. In contrast, IBC and CA may stimulate AMPK by binding to its active allosteric site, thereby inhibiting lipid synthesis essential for JEV replication and ultimately curtailing viral infection. Most importantly, in vivo experiments demonstrated that IBC and CA protected mice from JEV-induced mortality, significantly reducing viral loads in the brain and mitigating histopathological alterations. Overall, IBC and CA demonstrate significant potential as effective anti-JEV agents by precisely targeting AMPK-associated signaling pathways. These findings open new therapeutic avenues for addressing infections caused by Flaviviruses. IMPORTANCE This study is the inaugural utilization of a lipid compound library in antiviral drug screening. Two lipid compounds, isobavachalcone (IBC) and corosolic acid (CA), emerged from the screening, exhibiting substantial inhibitory effects on the Japanese encephalitis virus (JEV) proliferation in vitro. In vivo experiments underscored their efficacy, with IBC and CA reducing viral loads in the brain and mitigating JEV-induced histopathological changes, effectively shielding mice from fatal JEV infection. Intriguingly, IBC and CA may activate 5'-adenosine monophosphate (AMP)-activated protein kinase (AMPK) by binding to its active site, curtailing the synthesis of lipid substances, and thus suppressing JEV proliferation. This indicates AMPK as a potential antiviral target. Remarkably, IBC and CA demonstrated suppression of multiple viruses, including Flaviviruses (JEV and Zika virus), porcine herpesvirus (pseudorabies virus), and coronaviruses (porcine deltacoronavirus and porcine epidemic diarrhea virus), suggesting their potential as broad-spectrum antiviral agents. These findings shed new light on the potential applications of these compounds in antiviral research.
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Affiliation(s)
- Jiang-Fei Zhou
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Meng-Ran Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Qi Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Mei-Zhen Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ji-Shan Bai
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Qi Dai
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yuan-Hang Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Meng-Xue Yan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Xiao-Han Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jing Chen
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Ya-Yun Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Chun-Chun Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Jing Ye
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Bin Zhou
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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Tang L, Ding J, Yang K, Zong Z, Wu R, Li H. New insights into the mechanisms and therapeutic strategies of chondrocyte autophagy in osteoarthritis. J Mol Med (Berl) 2024:10.1007/s00109-024-02473-1. [PMID: 39145815 DOI: 10.1007/s00109-024-02473-1] [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: 12/17/2023] [Revised: 06/22/2024] [Accepted: 07/29/2024] [Indexed: 08/16/2024]
Abstract
Osteoarthritis (OA) is a chronic joint disease with an unclear cause characterized by secondary osteophytes and degenerative changes in the articular cartilage. More than 250 million people are expected to be affected by it by 2050, putting a tremendous socioeconomic strain on the entire world. OA cannot currently be treated with any effective medications that change the illness. Over time, chondrocytes undergo gradual metabolic, structural, and functional changes as a result of aging or abuse. The degenerative progression of osteoarthritis is significantly influenced by the imbalance of chondrocyte homeostasis. By continuously recycling and rebuilding macromolecules or organelles, autophagy functions as a crucial regulatory system to maintain homeostasis during an individual's growth and development. This review uses chondrocytes as its starting point and establishes a strong connection between autophagy and osteoarthritis in order to thoroughly examine the mechanisms behind chondrocyte autophagy in osteoarthritis. Biomarkers of chondrocyte autophagy will be identified, and prospective targeted medications and novel treatment approaches for slowing or preventing the course of OA will be developed based on chondrocyte senescence, autophagy, and apoptosis in OA. KEY MESSAGES: Currently, OA has not been treated with any drugs that can effectively cure it. We hope that by exploring specific targets in the course of osteoarthritis, we can promote the progress of treatment strategies. The degenerative progression of osteoarthritis is significantly influenced by the imbalance of chondrocyte balance. Through the continuous recovery and reconstruction of macromolecules or organelles, autophagy is an important regulatory system for maintaining homeostasis during individual growth and development. In this paper, the close relationship between autophagy and osteoarthritis was established with chondrocytes as the starting point, in order to further explore the mechanism of chondrocyte autophagy in osteoarthritis. The development process of osteoarthritis was studied from the perspective of chondrocytes, and the change of autophagy level had a significant impact on osteoarthritis. Chondrocyte autophagy is mainly determined by intracellular mitochondrial autophagy, so we are committed to finding relevant molecules. Through PI3K/AKT- and MAPK-related pathways, the biomarkers of chondrocyte autophagy were identified, and chondrocyte senescence, autophagy, and apoptosis based on osteoarthritis provided a constructive idea for the development of prospective targeted drugs and new therapies to slow down or prevent the progression of osteoarthritis.
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Affiliation(s)
- Lujia Tang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- The Third Clinical Medicine School, Nanchang University, Nanchang, China
| | - Jiatong Ding
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Kangping Yang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhen Zong
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Rui Wu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Hui Li
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Nanchang University, Nanchang, China.
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Li Y, Ding Z, Liu F, Li S, Huang W, Zhou S, Han Y, Liu L, Li Y, Yin Z. Luteolin regulating synthesis and catabolism of osteoarthritis chondrocytes via activating autophagy. Heliyon 2024; 10:e31028. [PMID: 38882274 PMCID: PMC11176761 DOI: 10.1016/j.heliyon.2024.e31028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 06/18/2024] Open
Abstract
Osteoarthritis (OA) is a prevalent bone and joint disease characterized by degeneration. The dysregulation between chondrocyte synthesis and breakdown is a key factor in OA development. Targeting the degenerative changes in cartilage tissue degradation could be a potential treatment approach for OA. Previous research has established a strong link between autophagy and the regulation of chondrocyte functions. Activating autophagy has shown promise in mitigating cartilage tissue degeneration. Currently, osteoarthritis treatment primarily focuses on symptom management, as there is no definitive medication to stop disease progression. Previous studies have demonstrated that luteolin, a flavonoid present in Chinese herbal medicine, can activate autophagy and reduce the expression of MMP1 and ADAMTS-5. This study utilized an in vitro osteoarthritis model with chondrocytes stimulated by IL-1β, treated with varying concentrations of luteolin. Treatment with luteolin notably increased the levels of synthesis factors Aggrecan and Collagen II, while decreasing the levels of decomposition factors MMP-1 and ADAMTS-5. Moreover, inhibition of autophagy by Chloroquine reversed the imbalances in chondrocyte activities induced by IL-1β. In an in vivo model of knee osteoarthritis induced by medial meniscal instability (DMM), luteolin was administered as a therapeutic regimen. After 12 weeks, knee cartilage tissues from mice were analyzed. Immunofluorescence and immunohistochemical staining revealed a decrease in P62 expression and an increase in Beclin-1 in the cartilage tissues. Additionally, cartilage wear in the knee joints of mice was alleviated by safranin O and fast green staining. Our study findings underscore the significant role of luteolin in effectively rebalancing chondrocyte activities disrupted by IL-1β. Our results strongly indicate that luteolin has the potential to be developed as a novel therapeutic agent for the treatment of osteoarthritis, offering promising prospects for future drug development.
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Affiliation(s)
- Yetian Li
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #218 Ji Xi Road, Hefei, 230032, Anhui, China
| | - Zhenfei Ding
- Department of Orthopedics, The First Affiliated Hospital of Bengbu Medical University, #287 Changhuai Road, Bengbu, 233000, Anhui, China
| | - Fuen Liu
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #218 Ji Xi Road, Hefei, 230032, Anhui, China
- Department of Emergency Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, #17 Lu Jiang Road, Hefei, 230001, Anhui, China
| | - Shuang Li
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #218 Ji Xi Road, Hefei, 230032, Anhui, China
| | - Wei Huang
- Department of Orthopedics,The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, #17 Lu Jiang Road, Hefei, 230001, Anhui, China
| | - Shusheng Zhou
- Department of Emergency Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, #17 Lu Jiang Road, Hefei, 230001, Anhui, China
| | - Yongsheng Han
- Department of Emergency Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, #17 Lu Jiang Road, Hefei, 230001, Anhui, China
| | - Ling Liu
- Department of Emergency Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, #17 Lu Jiang Road, Hefei, 230001, Anhui, China
| | - Yan Li
- Department of Emergency Center, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, #17 Lu Jiang Road, Hefei, 230001, Anhui, China
| | - Zongsheng Yin
- Department of Orthopaedics, The First Affiliated Hospital of Anhui Medical University, #218 Ji Xi Road, Hefei, 230032, Anhui, China
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Luo X, Ye Z, Xu C, Chen H, Dai S, Chen W, Bao G. Corosolic acid enhances oxidative stress-induced apoptosis and senescence in pancreatic cancer cells by inhibiting the JAK2/STAT3 pathway. Mol Biol Rep 2024; 51:176. [PMID: 38252208 DOI: 10.1007/s11033-023-09105-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/05/2023] [Indexed: 01/23/2024]
Abstract
BACKGROUND Pancreatic cancer (PC) is a fatal human malignancy with a poor prognosis. Corosolic acid (CRA) is a triterpenoid, has been reported to have inhibitory effects on tumor growth. However, the role of CRA on PC has not been explored. Here, we aimed to uncover the molecular mechanisms of CRA in PC progression. METHODS Cell viability, lactate dehydrogenase (LDH) release, cell apoptosis and senescence were detected by cell counting kit-8 (CCK-8), LDH, flow cytometry and senescence associated-β-galactosidase (SA-β-gal) assay. Levels of relevant proteins and oxidative stress (OS) markers were evaluated by Western blot and enzyme-linked immunosorbent assay (ELISA). A xenograft tumor model was established to explore the in vivo effects of CRA on PC. RESULTS We found that CRA inhibited PC cell viability and promoted LDH release in a dose-dependent manner, but had no significant effect on human normal pancreatic ductal epithelial cells HPDE6C7. CRA increased OS-induced cell apoptosis and senescence in HAPC and SW1990 cells. And CRA decreased the levels of anti-apoptotic protein Bcl-2, and elevated the expression of pro-apoptotic protein Bax and senescence-associated proteins P21 and P53. Besides, CRA decreased tumor growth in xenograft models. Furthermore, CRA inactivated the Janus kinase-2 (JAK2)/Signal Transducer and Activator of Transcription 3 (STAT3) signaling pathway in HAPC and SW1990 cells. Functional experiments demonstrated that activation of the JAK2/STAT3 pathway by the JAK2 activator coumermycin A1 (C-A1) or the STAT3 activator colivelin (col) reduced the contribution effect of OS, apoptosis and senescence by CRA. CONCLUSION Taken together, our findings indicated that CRA exerted anti-cancer effects in PC by inhibiting the JAK2/STAT3 pathway.
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Affiliation(s)
- Xu Luo
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, China
| | - Zhengchen Ye
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, China
| | - Chenglei Xu
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, China
| | - Huan Chen
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, China
| | - Shupeng Dai
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, China
| | - Weihong Chen
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, China
| | - Guoqing Bao
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, China.
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周 巧, 刘 健, 万 磊, 朱 艳, 齐 亚, 胡 月. [ Xinfeng Capsule alleviates interleukin-1β-induced chondrocyte inflammation and extracellular matrix degradation by regulating the miR-502-5p/TRAF2/NF-κB axis]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2024; 44:108-118. [PMID: 38293982 PMCID: PMC10878885 DOI: 10.12122/j.issn.1673-4254.2024.01.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Indexed: 02/01/2024]
Abstract
OBJECTIVE To investigate the mechanism that mediates the inhibitory effect of Xinfeng Capsule (XFC) on interleukin (IL)-1β-induced impairment of chondrocytes. METHODS XFC-medicated serum was collected from SD rats with XFC gavage, and its optimal concentration for chondrocyte treatment was determined using Cell Counting Kit-8 assay and flow cytometry. Dual luciferase reporter analysis was performed to analyze the targeting relationship between miR-502-5p and TRAF2. In cultured human chondrocytes induced with IL-1β, the effects of transfection with miR-502-5p inhibitor and XFC-medicated serum, alone or in combination, on expression levels of IL-1β, tumor necrosis factor-α (TNF-α), IL-4, and IL-10 were examined with ELISA, and the changes in the expressions of collagen type Ⅱ alpha 1 (COL2A1), matrix metalloproteinase 13 (MMP13), adisintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS5), and miR-502-5p/TRAF2/NF-κB axis gene expression were detected using RT-qPCR, Western blotting, and immunofluorescence assay. RESULTS In cultured human chondrocytes, treatment with IL-1β significantly decreased the cell viability, increased cell apoptosis rate, lowered miR-502-5p, IL-4, IL-10, and COL2A1 expressions, and enhanced IL-1β, TNF-α, ADAMTS5, MMP13, TRAF2, and NF-κB p65 expressions (P < 0.05), and these changes were significantly improved by treatment with XFC-medicated serum at the optimal concentration of 20% (P < 0.05). Transfection of the chondrocytes with miR-502-5p inhibitor resulted in elevated expressions of IL-1β, TNF-α, ADAMTS5, MMP13, TRAF2, and NF-κB p65 and lowered expressions of miR-502-5p, IL-4, IL-10, and COL2A1, and XFC-medicated serum obviously reversed the effects of miR-502-5p inhibitor. CONCLUSION XFC can inhibit IL-1β-induced inflammatory response and ECM degradation in cultured human chondrocytes possibly by regulating the miR-502-5p/TRAF2/NF-κB axis.
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Affiliation(s)
- 巧 周
- 安徽中医药大学第二附属医院,安徽 合肥 230061Second Affiliated Hospital, Anhui University of Chinese Medicine, Hefei 230061, China
- 安徽中医药大学,安徽 合肥 230012Anhui University of Chinese Medicine, Hefei 230012, China
| | - 健 刘
- 安徽中医药大学第一附属医院,安徽 合肥 230031First Affiliated Hospital, Anhui University of Chinese Medicine, Hefei 230031, China
| | - 磊 万
- 安徽中医药大学第一附属医院,安徽 合肥 230031First Affiliated Hospital, Anhui University of Chinese Medicine, Hefei 230031, China
| | - 艳 朱
- 安徽中医药大学第二附属医院,安徽 合肥 230061Second Affiliated Hospital, Anhui University of Chinese Medicine, Hefei 230061, China
| | - 亚军 齐
- 安徽中医药大学,安徽 合肥 230012Anhui University of Chinese Medicine, Hefei 230012, China
| | - 月迪 胡
- 安徽中医药大学,安徽 合肥 230012Anhui University of Chinese Medicine, Hefei 230012, China
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Jiang H, Yu J, Yan Z, Lin Z, Lin M, Mao Y, Hong Z, Lin J, Xue X, Pan X. Pharmacological activation of the Nrf2 pathway by Taxifolin remodels articular cartilage microenvironment for the therapy of Osteoarthritis. Int Immunopharmacol 2023; 122:110587. [PMID: 37399606 DOI: 10.1016/j.intimp.2023.110587] [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: 05/25/2023] [Revised: 06/17/2023] [Accepted: 06/29/2023] [Indexed: 07/05/2023]
Abstract
BACKGROUND Osteoarthritis (OA) is a widely prevalent degenerative disease marked by extracellular matrix (ECM) degradation, inflammation, and apoptosis. Taxifolin (TAX) is a natural antioxidant possessing various pharmacological benefits, such as combating inflammation, oxidative stress, apoptosis, and serves as a potential chemopreventive agent by regulating genes through an antioxidant response element (ARE)-dependent mechanism. Currently, no studies have investigated the therapeutic impact and precise mechanism of TAX on OA. PURPOSE The aim of this study is to examine the potential role and mechanism of TAX in reshaping the cartilage microenvironment, thereby offering a stronger theoretical foundation for pharmacologically activating the Nrf2 pathway to manage OA. STUDY DESIGN AND METHODS The pharmacological effects of TAX were examined in chondrocytes through in vitro studies and in a destabilization of the medial meniscus (DMM) rat model for in vivo analysis. RESULTS TAX suppresses IL-1β triggered secretion of inflammatory agents, chondrocyte apoptosis, and ECM degradation, contributing to the remodeling of the cartilage microenvironment. In vivo experiment results demonstrated that TAX counteracted cartilage degeneration induced by DMM in rats. Mechanistic investigations revealed that TAX hinders OA development by reducing NF-κB activation and ROS production through the activation of the Nrf2/HO-1 axis. CONCLUSION TAX reshapes the articular cartilage microenvironment by suppressing inflammation, mitigating apoptosis, and decreasing ECM degradation through the activation of the Nrf2 pathway. As a result, pharmacological activation of the Nrf2 pathway by TAX holds potential clinical significance in remodeling the joint microenvironment for OA treatment.
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Affiliation(s)
- Hongyi Jiang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Jiachen Yu
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Zijian Yan
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Zhongnan Lin
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Minghao Lin
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, China
| | - Yiwen Mao
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Zechao Hong
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Jian Lin
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
| | - Xinghe Xue
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
| | - Xiaoyun Pan
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China; Key Laboratory of Orthopedics of Zhejiang Province, Wenzhou, Zhejiang Province, China; The Second Clinical School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
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