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Ma H, Du M, Hou T, Guo J, Liu Y, Jia Y, Wang L, An M. HMGB1/RAGE axis accelerates the repair of HUVECs injured by pathological mechanical stretching via promoting bFGF expression. Biochem Biophys Res Commun 2022; 636:75-83. [DOI: 10.1016/j.bbrc.2022.10.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 09/22/2022] [Accepted: 10/18/2022] [Indexed: 11/02/2022]
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Wang Q, Cui Y, Wu X, Wang J. Evodiamine protects against airway remodelling and inflammation in asthmatic rats by modulating the HMGB1/NF-κB/TLR-4 signalling pathway. PHARMACEUTICAL BIOLOGY 2021; 59:192-199. [PMID: 33577738 PMCID: PMC7889089 DOI: 10.1080/13880209.2020.1871374] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
CONTEXT Evodiamine, which is isolated from Evodia rutaecarpa (Rutaceae), possess strong anti-inflammatory, immunomodulatory, and antibacterial properties. OBJECTIVE The protective effects of evodiamine in asthma were evaluated. MATERIALS AND METHODS Thirty-two Sprague-Dawley (SD) rats were used, asthma was induced by injecting intraperitoneally with a mixture of Al(OH)3 (100 mg) and ovalbumin (OA; 1 mg/kg), further exposing them to a 2% OA aerosol for 1 week. All animals were divided into four groups: control, asthma, and evodiamine 40 and 80 mg/kg p.o. treated group. Serum levels of inflammatory cytokines, interferon gamma (IFN-γ), and immunoglobulin E (IgE) and infiltrations of inflammatory cells in the bronchoalveolar lavage fluid (BALF) of the animals were determined. The thickness of the smooth muscle layer and airway wall in the intact small bronchioles of asthmatic rats was examined as well. RESULTS Cytokine levels in the serum and BALF were lower in the evodiamine-treated group than in the asthma group. Evodiamine treatment reduced IgE and IFN-γ levels as well as the inflammatory cell infiltrate in the lung tissue of asthmatic rats. The thickness of the smooth muscle layer and airway wall of intact small bronchioles was less in the evodiamine-treated group than in the asthma group. Lower levels of TLR-4, MyD88, NF-κB, and HMGB1 mRNA in lung tissue were measured in the evodiamine-treated group than in the asthma group. DISCUSSION AND CONCLUSION The effect of evodiamine treatment protects the asthma, as evodiamine reduces airway inflammation and remodelling in the lung tissue by downregulating the HMGB1/NF-κB/TLR-4 pathway in asthma.
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Affiliation(s)
- Qiong Wang
- Department of Clinical Laboratory, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Jiangsu, China
| | - Yubao Cui
- Department of Clinical Laboratory, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Jiangsu, China
| | - Xufeng Wu
- Department of Chinese Traditional Medicine, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Jiangsu, China
| | - Junfang Wang
- Department of Orthopaedics, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Jiangsu, China
- CONTACT Junfang Wang Department of Orthopaedics, Wuxi People’s Hospital Affiliated to Nanjing Medical University, No 299 of QingYang Road, Jiangsu214023, China
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Choi JM, Baek SE, Kim JO, Jeon EY, Jang EJ, Kim CD. 5-LO-derived LTB4 plays a key role in MCP-1 expression in HMGB1-exposed VSMCs via a BLTR1 signaling axis. Sci Rep 2021; 11:11100. [PMID: 34045591 PMCID: PMC8160259 DOI: 10.1038/s41598-021-90636-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 05/10/2021] [Indexed: 11/17/2022] Open
Abstract
Monocyte chemoattractant protein-1 (MCP-1) plays an important role in initiating vascular inflammation; however, its cellular source in the injured vasculatures is unclear. Given the importance of high mobility group box 1 (HMGB1) in tissue injury, we investigated the role of vascular smooth muscle cells (VSMCs) in MCP-1 production in response to HMGB1. In primary cultured rat aortic VSMCs stimulated with HMGB1, the expression of MCP-1 and 5-lipoxygenase (LO) was increased. The increased MCP-1 expression in HMGB1 (30 ng/ml)-stimulated cells was significantly attenuated in 5-LO-deficient cells as well as in cells treated with zileuton, a 5-LO inhibitor. Likewise, MCP-1 expression and production were also increased in cells stimulated with exogenous leukotriene B4 (LTB4), but not exogenous LTC4. LTB4-induced MCP-1 expression was attenuated in cells treated with U75302, a LTB4 receptor 1 (BLTR1) inhibitor as well as in BLTR1-deficient cells, but not in 5-LO-deficient cells. Moreover, HMGB1-induced MCP-1 expression was attenuated in BLTR1-deficient cells or by treatment with a BLTR1 inhibitor, but not other leukotriene receptor inhibitors. In contrast to MCP-1 expression in response to LTB4, the increased MCP-1 production in HMGB1-stimulated VSMC was markedly attenuated in 5-LO-deficient cells, indicating a pivotal role of LTB4-BLTR1 signaling in MCP-1 expression in VSMCs. Taken together, 5-LO-derived LTB4 plays a key role in MCP-1 expression in HMGB1-exposed VSMCs via BLTR1 signaling, suggesting the LTB4-BLTR1 signaling axis as a potential therapeutic target for vascular inflammation in the injured vasculatures.
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Affiliation(s)
- Jong Min Choi
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
- Gene and Cell Therapy Research Center for Vessel-Associated Diseases, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
| | - Seung Eun Baek
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
- Gene and Cell Therapy Research Center for Vessel-Associated Diseases, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
| | - Ji On Kim
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
- Gene and Cell Therapy Research Center for Vessel-Associated Diseases, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
| | - Eun Yeong Jeon
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
- Gene and Cell Therapy Research Center for Vessel-Associated Diseases, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
| | - Eun Jeong Jang
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
- Gene and Cell Therapy Research Center for Vessel-Associated Diseases, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
| | - Chi Dae Kim
- Department of Pharmacology, School of Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea.
- Gene and Cell Therapy Research Center for Vessel-Associated Diseases, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea.
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Gyeongnam, 50612, Republic of Korea.
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Zhang J, Liu Y, Long M, Li J, Zhao W, Su Q. Inhibitory effect of CP-25 on intimal formation and vascular hyperplasia via suppression of GRK2/ERK1/2/EVI1 signaling. Arch Biochem Biophys 2020; 694:108601. [PMID: 32980350 DOI: 10.1016/j.abb.2020.108601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/01/2020] [Accepted: 09/23/2020] [Indexed: 02/02/2023]
Abstract
Excessive proliferation, migration and dedifferentiation of vascular smooth muscle cells (VSMCs) are the center of intimal formation during in-stent restenosis and vein graft disease. Paeoniflorin-6'-O-benzene sulfonate (CP-25) is known to suppress inflammation and atherogenesis. However, the potential effect of CP-25 on intimal formation remains elusive. In the present study, we found that CP-25 significantly attenuated wire injury-induced intimal formation in C57BL/6 mice (intimal area: 2.64 ± 0.25 × 104 μm2 vs. 1.53 ± 0.21 × 104 μm2, P < 0.05) and vascular hyperplasia indicated by PCNA staining. In vitro experiments showed that CP-25 significantly alleviated human aortic smooth muscle cell (HASMC) proliferation, migration and dedifferentiation induced by PDGF-BB. Mechanistically, CP-25 inhibited GRK2 phosphorylation through PDGF receptor in the presence of PDGF-BB. In accordance with these results, CP-25 disrupted the interaction of GRK2 with ERK1/2 and suppressed the activation of ERK1/2 signaling in HASMCs. EVI1, which is considered as a downstream of ERK1/2 signaling and a novel transcription factor for VSMC differentiation, was also downregulated by CP-25 treatment. Moreover, overexpression of EVI1 partly restored the decreased proliferation and dedifferentiation of HASMCs treated by CP-25. Collectively, these findings suggested that CP-25 could alleviate intimal formation in response to wire injury via suppression of the interaction of GRK2 and ERK1/2 and EVI1 activation, indicating CP-25 might serve as a potent pharmaceutical for intimal formation.
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Affiliation(s)
- Jing Zhang
- Department of Cardiology, Liuzhou Municipal Liutie Central Hospital, Guangxi Autonomous Region, People's Republic of China
| | - Yang Liu
- Department of Cardiology, The Second People's Hospital of Nanning City, The Third Affiliated Hospital of Guangxi Medical University, Guangxi Autonomous Region, People's Republic of China
| | - Ming Long
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-sen University, Guangdong, People's Republic of China
| | - Jun Li
- Department of Cardiology, Liuzhou Municipal Liutie Central Hospital, Guangxi Autonomous Region, People's Republic of China
| | - Weikun Zhao
- Department of Cardiology, Affiliated Hospital of Guilin Medical University, Guangxi Autonomous Region, 541001, People's Republic of China
| | - Qiang Su
- Department of Cardiology, Affiliated Hospital of Guilin Medical University, Guangxi Autonomous Region, 541001, People's Republic of China.
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HMGB1-C1q complexes regulate macrophage function by switching between leukotriene and specialized proresolving mediator biosynthesis. Proc Natl Acad Sci U S A 2019; 116:23254-23263. [PMID: 31570601 DOI: 10.1073/pnas.1907490116] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Macrophage polarization is critical to inflammation and resolution of inflammation. We previously showed that high-mobility group box 1 (HMGB1) can engage receptor for advanced glycation end product (RAGE) to direct monocytes to a proinflammatory phenotype characterized by production of type 1 IFN and proinflammatory cytokines. In contrast, HMGB1 plus C1q form a tetramolecular complex cross-linking RAGE and LAIR-1 and directing monocytes to an antiinflammatory phenotype. Lipid mediators, as well as cytokines, help establish a milieu favoring either inflammation or resolution of inflammation. This study focuses on the induction of lipid mediators by HMGB1 and HMGB1 plus C1q and their regulation of IRF5, a transcription factor critical for the induction and maintenance of proinflammatory macrophages. Here, we show that HMGB1 induces leukotriene production through a RAGE-dependent pathway, while HMGB1 plus C1q induces specialized proresolving lipid mediators lipoxin A4, resolvin D1, and resolvin D2 through a RAGE- and LAIR-1-dependent pathway. Leukotriene exposure contributes to induction of IRF5 in a positive-feedback loop. In contrast, resolvins (at 20 nM) block IRF5 induction and prevent the differentiation of inflammatory macrophages. Finally, we have generated a molecular mimic of HMGB1 plus C1q, which cross-links RAGE and LAIR-1 and polarizes monocytes to an antiinflammatory phenotype. These findings may provide a mechanism to control nonresolving inflammation in many pathologic conditions.
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