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Guo J, Yuan Z, Wang R. Zn 2+ improves sepsis-induced acute kidney injury by upregulating SIRT7-mediated Parkin acetylation. Am J Physiol Renal Physiol 2024; 327:F184-F197. [PMID: 38779758 DOI: 10.1152/ajprenal.00337.2023] [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: 11/08/2023] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Zn2+ levels are reported to be correlated with kidney function. We explored the significance of Zn2+ in sepsis-induced acute kidney injury (SI-AKI) through the regulation of sirtuin 7 (SIRT7) activity. The sepsis rat model was established by cecal ligation and perforation (CLP) and intraperitoneally injected with ZnSO4 or SIRT7 inhibitor 97491 (SIRT7i), with renal tubular injury assessed by hematoxylin and eosin staining. In vitro, human renal tubular epithelial cells (HK-2) were induced with lipopolysaccharide to obtain a renal injury cell model, followed by ZnSO4 or SIRT7i and autophagy inhibitor (3-methyladenine) treatment. Interleukin (IL)-1β, IL-18, reactive oxygen species (ROS), Parkin acetylation level, kidney injury molecule-1 (KIM-1), and neutrophil gelatinase-associated lipocalin (NGAL) expression levels were determined. The renal tubule injury, inflammation condition, and pyroptosis-related and autophagy-related protein levels were assessed. The pyroptosis in kidney tissues and autophagosome formation were observed by transmission electron microscopy. Zn2+ alleviated renal injury in CLP rats and inhibited pyroptosis and its related protein levels by inhibiting SIRT7 activity in septic rat renal tissues. In vitro, Zn2+ increased HK-2 cell viability and reduced KIM-1, NGAL, IL-1β, IL-18, NLRP3 inflammasome, cleaved caspase-1, gasdermin D-N levels, and pyroptotic cell number. Zn2+ increased autophagosome number and LC3BII/LC3BI ratio and decreased TOM20, TIM23, P62, and mitochondrial ROS levels. Zn2+ increased Parkin acetylation by repressing SIRT7 activity. Inhibiting mitophagy partially averted Zn2+-inhibited NLRP3 inflammasome activation and apoptosis in HK-2 cells. Zn2+ upregulated Parkin acetylation by repressing SIRT7 activity to promote mitophagy and inhibit NLRP3 inflammasome activation and pyroptosis, thus improving SI-AKI.NEW & NOTEWORTHY Zn2+ upregulated Parkin acetylation by repressing sirtuin 7 activity to promote mitophagy and inhibit NLRP3 inflammasome activation and pyroptosis, thus improving sepsis-induced acute kidney injury.
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Affiliation(s)
- Jun Guo
- Department of Critical Care Medicine, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Zhenhui Yuan
- Department of Critical Care Medicine, Union Jiangbei Hospital, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Rong Wang
- Department of Critical Care Medicine, Union Jiangbei Hospital, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Sun J, Wang S, Zhao Z, Lu J, Zhang Y, An W, Li W, Yang L, Tong X. Oxymatrine Attenuates Ulcerative Colitis through Inhibiting Pyroptosis Mediated by the NLRP3 Inflammasome. Molecules 2024; 29:2897. [PMID: 38930963 PMCID: PMC11206389 DOI: 10.3390/molecules29122897] [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: 05/10/2024] [Revised: 06/13/2024] [Accepted: 06/16/2024] [Indexed: 06/28/2024] Open
Abstract
Ulcerative colitis (UC) is difficult to cure and easy to relapse, leading to poor quality of life for patients. Oxymatrine (OMT) is one of the main alkaloids of Sophora flavescens Aiton, which has many effects, such as anti-inflammation, anti-oxidative stress, and immunosuppression. This study aimed to investigate whether OMT could attenuate ulcerative colitis by inhibiting the NOD-like receptor family pyrin domain containing three (NLRP3) inflammasome-mediated pyroptosis. In this study, the UC rat models were established by 2,4,6-Trinitrobenzenesulfonic acid (TNBS) in vivo, while RAW264.7 cells and peritoneal macrophages were stimulated with Lipopolysaccharides/Adenosine Triphosphate (LPS/ATP) in vitro to simulate pyroptosis models, and Western blotting (WB) and other detection techniques were applied to analyze proteins involved in the NLRP3 inflammasome pathway. Our results showed that OMT alleviated colitis ulcers and pathological damage in the TNBS-induced UC rats and exhibited an inhibitory effect on pyroptosis at the early stage of UC. In the model group, the pyroptosis reached the peak at 24 h after modeling with the contents of active-cysteine-aspartic proteases-1 (caspase-1), Gasdermin D (GSDMD)-N, and cleaved-interleukin-1 beta (IL-1β) to the highest expression level. Meanwhile, we found that OMT (80 mg kg-1) remarkably decreased the expression levels of NLRP3, active-caspase-1, and cleaved-IL-1β at 24 h in the lesion tissue from UC rats. Further experiments on cells demonstrated that OMT at concentrations of 100 and 250 μM significantly inhibited cell death caused by NLRP3 inflammasome activation (p < 0.05), downregulated caspase-1, GSDMD, and decreased the levels of active-caspase-1, GSDMD-N, cleaved-IL-1β in RAW326.7 cells, and peritoneal macrophages. In summary, these results indicated that OMT could attenuate ulcerative colitis through inhibiting pyroptosis mediated by the NLRP3 inflammasome. The inhibition of the NLRP3 inflammasome may be a potential strategy for UC.
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Affiliation(s)
- Jing Sun
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
- Ningbo Institute of Dalian University of Technology, No. 26, Yucai Road, Jiangbei District, Ningbo 315016, China
| | - Shuai Wang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
- Ningbo Institute of Dalian University of Technology, No. 26, Yucai Road, Jiangbei District, Ningbo 315016, China
| | - Zhengtian Zhao
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
| | - Jiaqi Lu
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
| | - Yiming Zhang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
| | - Wen An
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
| | - Wei Li
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
| | - Li Yang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
- Ningbo Institute of Dalian University of Technology, No. 26, Yucai Road, Jiangbei District, Ningbo 315016, China
| | - Xiaowei Tong
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Engineering, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Ganjingzi District, Dalian 116024, China (X.T.)
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Xu X, Qiu H. BRD4 promotes gouty arthritis through MDM2-mediated PPARγ degradation and pyroptosis. Mol Med 2024; 30:67. [PMID: 38773379 PMCID: PMC11110350 DOI: 10.1186/s10020-024-00831-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: 01/02/2024] [Accepted: 05/08/2024] [Indexed: 05/23/2024] Open
Abstract
BACKGROUND Gouty arthritis (GA) is characterized by monosodium urate (MSU) crystal accumulation that instigates NLRP3-mediated pyroptosis; however, the underlying regulatory mechanisms have yet to be fully elucidated. The present research endeavors to elucidate the regulatory mechanisms underpinning this MSU-induced pyroptotic cascade in GA. METHODS J774 cells were exposed to lipopolysaccharide and MSU crystals to establish in vitro GA models, whereas C57BL/6 J male mice received MSU crystal injections to mimic in vivo GA conditions. Gene and protein expression levels were evaluated using real-time quantitative PCR, Western blotting, and immunohistochemical assays. Inflammatory markers were quantified via enzyme-linked immunosorbent assays. Pyroptosis was evaluated using immunofluorescence staining for caspase-1 and flow cytometry with caspase-1/propidium iodide staining. The interaction between MDM2 and PPARγ was analyzed through co-immunoprecipitation assays, whereas the interaction between BRD4 and the MDM2 promoter was examined using chromatin immunoprecipitation and dual-luciferase reporter assays. Mouse joint tissues were histopathologically evaluated using hematoxylin and eosin staining. RESULTS In GA, PPARγ was downregulated, whereas its overexpression mitigated NLRP3 inflammasome activation and pyroptosis. MDM2, which was upregulated in GA, destabilized PPARγ through the ubiquitin-proteasome degradation pathway, whereas its silencing attenuated NLRP3 activation by elevating PPARγ levels. Concurrently, BRD4 was elevated in GA and exacerbated NLRP3 activation and pyroptosis by transcriptionally upregulating MDM2, thereby promoting PPARγ degradation. In vivo experiments showed that BRD4 silencing ameliorated GA through this MDM2-PPARγ-pyroptosis axis. CONCLUSION BRD4 promotes inflammation and pyroptosis in GA through MDM2-mediated PPARγ degradation, underscoring the therapeutic potential of targeting this pathway in GA management.
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Affiliation(s)
- Xiaoxia Xu
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang Province, 154000, People's Republic of China
| | - Hongbin Qiu
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, School of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang Province, 154000, People's Republic of China.
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Jiang S, Li W, Song M, Liang J, Liu G, Du Q, Wang L, Meng H, Tang L, Yang Y, Zhang B. CXCL1-CXCR2 axis mediates inflammatory response after sciatic nerve injury by regulating macrophage infiltration. Mol Immunol 2024; 169:50-65. [PMID: 38493581 DOI: 10.1016/j.molimm.2024.03.006] [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: 12/01/2023] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Macrophages play a crucial role in the inflammatory response following sciatic nerve injury. Studies have demonstrated that C-X-C motif chemokine (CXCL) 1 recruit macrophages by binding to C-X-C chemokine receptor (CXCR) 2 and participates in the inflammatory response of various diseases. Based on these findings, we aimed to explore the role of the CXCL1-CXCR2 axis in the repair process after peripheral nerve injury. Initially, we simulated sciatic nerve injury and observed an increased expression of CXCL1 and CXCR2 in the nerves of the injury group. Both in vivo and in vitro experiments confirmed that the heightened CXCL1 expression occurs in Schwann cells and is secreted, while the elevated CXCR2 is expressed by recruited macrophages. In addition, in vitro experiments demonstrated that the binding of CXCL1 to CXCR2 can activate the NLRP3 inflammasome and promote the production of interleukin-1 beta (IL-1β) in macrophages. However, after mice were subjected to sciatic nerve injury, the number of macrophages and the expression of inflammatory factors in the sciatic nerve were reduced following treatment with the CXCR2 inhibitor SB225002. Simultaneously, we evaluated the sciatic nerve function index, the expression of p75 neurotrophic factor receptor (p75NTR), and myelin proteins, and all of these results were improved with the use of SB225002. Thus, our results suggest that after sciatic nerve injury, the CXCL1-CXCR2 axis mediates the inflammatory response by promoting the recruitment and activation of macrophages, which is detrimental to the repair of the injured nerves. In contrast, treatment with SB225002 promotes the repair of injured sciatic nerves.
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Affiliation(s)
- Suli Jiang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Wei Li
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Meiying Song
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Jie Liang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Guixian Liu
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Qiaochu Du
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Luoyang Wang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Haining Meng
- School of Emergency Medicine, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Lei Tang
- Department of Special Medicine, School of Basic Medical College, Qingdao University, Qingdao, Shandong Province, China
| | - Yanyan Yang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China
| | - Bei Zhang
- Department of Immunology, Medical College of Qingdao University, Qingdao, Shandong Province, China.
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Li Y, Xia X, Niu Z, Wang K, Liu J, Li X. hCeO 2@ Cu 5.4O nanoparticle alleviates inflammatory responses by regulating the CTSB-NLRP3 signaling pathway. Front Immunol 2024; 15:1344098. [PMID: 38711511 PMCID: PMC11070469 DOI: 10.3389/fimmu.2024.1344098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 03/25/2024] [Indexed: 05/08/2024] Open
Abstract
Inflammatory responses, especially chronic inflammation, are closely associated with many systemic diseases. There are many ways to treat and alleviate inflammation, but how to solve this problem at the molecular level has always been a hot topic in research. The use of nanoparticles (NPs) as anti-inflammatory agents is a potential treatment method. We synthesized new hollow cerium oxide nanomaterials (hCeO2 NPs) doped with different concentrations of Cu5.4O NPs [the molar ratio of Cu/(Ce + Cu) was 50%, 67%, and 83%, respectively], characterized their surface morphology and physicochemical properties, and screened the safe concentration of hCeO2@Cu5.4O using the CCK8 method. Macrophages were cultured, and P.g-lipopolysaccharide-stimulated was used as a model of inflammation and co-cultured with hCeO2@Cu5.4O NPs. We then observe the effect of the transcription levels of CTSB, NLRP3, caspase-1, ASC, IL-18, and IL-1β by PCR and detect its effect on the expression level of CTSB protein by Western blot. The levels of IL-18 and IL-1β in the cell supernatant were measured by enzyme-linked immunosorbent assay. Our results indicated that hCeO2@Cu5.4O NPs could reduce the production of reactive oxygen species and inhibit CTSB and NLRP3 to alleviate the damage caused by the inflammatory response to cells. More importantly, hCeO2@Cu5.4O NPs showed stronger anti-inflammatory effects as Cu5.4O NP doping increased. Therefore, the development of the novel nanomaterial hCeO2@Cu5.4O NPs provides a possible new approach for the treatment of inflammatory diseases.
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Affiliation(s)
- Ying Li
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Xiaomin Xia
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Zhaojun Niu
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Ke Wang
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Jie Liu
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
| | - Xue Li
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
- School of Stomatology, Qingdao University, Qingdao, China
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Kinra M, Ranadive N, Nampoothiri M, Arora D, Mudgal J. Involvement of NLRP3 inflammasome pathway in the protective mechanisms of ferulic acid and p-coumaric acid in LPS-induced sickness behavior and neuroinflammation in mice. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:1829-1839. [PMID: 37755515 PMCID: PMC10858824 DOI: 10.1007/s00210-023-02743-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/21/2023] [Indexed: 09/28/2023]
Abstract
Ferulic acid (FA) and p-coumaric acid (PCA) are abundantly present in commonly consumed food and beverages. Being polyphenolic compounds, they have been explored for their antioxidant and anti-inflammatory properties. Based on our previous study, we selected these two compounds to further investigate their potential in lipopolysaccharide (LPS)-induced sickness behavior and the ensuing neuroinflammation by specifically focusing on the NLRP3 inflammasome pathway. Male Swiss albino mice were divided into nine groups (n = 6) consisting of Normal Control, LPS, fluoxetine (FLX), FA40, FA160, FA640, PCA40, PCA160, and PCA640 respectively. Each group received respective FA or PCA treatment except Normal Control and LPS, which received the vehicle, carboxymethylcellulose 0.25% w/v. All groups were challenged with LPS 1.5 mg/kg, intraperitoneally except the Normal Control group, which received saline. Behavioral assessments were performed between 1-2 h, and the whole brains were collected at 3 h post-LPS administration. LPS-induced sickness behavior was characterized by significantly reduced spontaneous activity and high immobility time. The expression of NLRP3, ASC, caspase-1 and IL-1β was significantly increased, along with the levels of brain IL-1β suggesting the assembly and activation of NLRP3 inflammasome pathway. Furthermore, the major cytokines involved in sickness behavior, IL-6 and TNF-α were also significantly elevated with the accompanied lipid peroxidation. The results of this study emphasize that within the employed dose ranges of both FA and PCA, both the compounds were effective at blocking the activation of the NLRP3 inflammasome pathway and thereby reducing the release of IL-1β and the sickness behavior symptoms. There was a prominent effect on cytokine levels and lipid peroxidation as well.
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Affiliation(s)
- Manas Kinra
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Niraja Ranadive
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Devinder Arora
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
- School of Pharmacy and Medical Sciences, Griffith University, Gold Coast Campus, Gold Coast, QLD, 4222, Australia.
| | - Jayesh Mudgal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India.
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Mezher N, Mroweh O, Karam L, Ibrahim JN, Kobeissy PH. Experimental models in Familial Mediterranean Fever (FMF): Insights into pathophysiology and therapeutic strategies. Exp Mol Pathol 2024; 135:104883. [PMID: 38266955 DOI: 10.1016/j.yexmp.2024.104883] [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: 07/19/2023] [Revised: 12/05/2023] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
Familial Mediterranean Fever (FMF) is a recurrent polyserositis characterized by self-limiting episodes or attacks of fever along with serosal inflammation. It mainly impacts people of the Mediterranean and Middle Eastern basin. FMF is a recessive autoinflammatory condition caused by mutation in the MEFV gene located on chromosome 16p13. MEFV mutations lead to the activation of the pyrin inflammasome resulting in an uncontrolled release of IL-1β. Various in vitro, in vivo and ex vivo experimental models have been developed to further comprehend the etiology and pathogenesis of FMF. These models have been proven to be clinically relevant to human FMF and can provide significant information about biological systems with respect to this condition. Additionally, these models have provided pertinent contributions to the development of potent therapeutic strategies against FMF. In this review, we describe the different experimental models utilized in FMF and we focus primarily on the most widely used models that have produced prominent insights into the pathophysiology of the disease.
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Affiliation(s)
- Nawal Mezher
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University (LAU), Beirut, Lebanon
| | - Ola Mroweh
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University (LAU), Beirut, Lebanon
| | - Louna Karam
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University (LAU), Beirut, Lebanon
| | - José-Noel Ibrahim
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University (LAU), Beirut, Lebanon.
| | - Philippe Hussein Kobeissy
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University (LAU), Beirut, Lebanon.
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Tang LQ, Wang W, Tang QF, Wang LL. The molecular mechanism of MiR-26a-5p regulates autophagy and activates NLRP3 inflammasome to mediate cardiomyocyte hypertrophy. BMC Cardiovasc Disord 2024; 24:18. [PMID: 38172711 PMCID: PMC10765805 DOI: 10.1186/s12872-023-03695-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: 06/26/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024] Open
Abstract
OBJECTIVE Many studies have found that miR-26a-5p plays an essential role in the progression of pathological cardiac hypertrophy, however, there is still no evidence on whether miR-26a-5p is related to the activation of autophagy and NLRP3 inflammasome. And the mechanism of miR-26a-5p and NLRP3 inflammasome aggravating pathological cardiac hypertrophy remain unclear. METHODS Cardiomyocytes were treated with 200µM PE to induce cardiac hypertrophy and intervened with 10mM NLRP3 inhibitor INF39. In addition, we also used the MiR-26a-5p mimic and inhibitor to transfect PE-induced cardiac hypertrophy. RT-qPCR and western blotting were used to detect the expressions of miR-26a-5p, NLRP3, ASC and Caspase-1 in each group, and we used α-SMA immunofluorescence to detect the change of cardiomyocyte area. The expression levels of autophagy proteins LC3, beclin-1 and p62 were detected by western blotting. Finally, we induced the SD rat cardiac hypertrophy model through aortic constriction (TAC) surgery. In the experimental group, rats were intervened with MiR-26a-5p mimic, MiR-26a-5p inhibitor, autophagy inhibitor 3-MA, and autophagy activator Rapamycin. RESULTS In cell experiments, we observed that the expression of miR-26a-5p was associated with cardiomyocyte hypertrophy and increased surface area. Furthermore, miR-26a-5p facilitated autophagy and activated the NLRP3 inflammasome pathway, which caused changes in the expression of genes and proteins including LC3, beclin-1, p62, ACS, NLRP3, and Caspase-1. We discovered similar outcomes in the TAC rat model, where miR-26a-5p expression corresponded with cardiomyocyte enlargement and fibrosis in the cardiac interstitial and perivascular regions. In conclusion, miR-26a-5p has the potential to regulate autophagy and activate the NLRP3 inflammasome, contributing to the development of cardiomyocyte hypertrophy. CONCLUSION Our study found a relationship between the expression of miR-26a-5p and cardiomyocyte hypertrophy. The mechanism behind this relationship appears to involve the activation of the NLRP3 inflammasome pathway, which is caused by miR-26a-5p promoting autophagy. Targeting the expression of miR-26a-5p, as well as inhibiting the activation of autophagy and the NLRP3 inflammasome pathway, could offer additional treatments for pathological cardiac hypertrophy.
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Affiliation(s)
- Li-Qun Tang
- Geriatric Medicine Center, Department of Geriatric Medicine, Zhejiang Provincial People ' s Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
| | - Wei Wang
- Department of Pharmacy, Zhejiang Province People's Hospital, Hangzhou Medical College, No.156 Shangtang Road, Xiacheng District, Hangzhou, 310016, Zhejiang, China
| | - Qi-Feng Tang
- Department of Radiology, Zhejiang Province People's Hospital, Hangzhou, 310016, Zhejiang, China
| | - Ling-Ling Wang
- Department of Critical Care Medicine, Dinghai District Central Hospital, Zhoushan, 316000, Zhejiang, China
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Arai N, Kajihara R, Takasaka M, Amari K, Kuneshita N, Maejima D, Watanabe-Asaka T, Hayashi M, Yokoyama Y, Kaidoh M, Kawai Y, Ohhashi T. Cell surface ATP synthase-released H + and ATP play key roles in cocoa butter intake-mediated regulation of gut immunity through releases of cytokines in rat. Pflugers Arch 2023; 475:945-960. [PMID: 37261509 DOI: 10.1007/s00424-023-02822-y] [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: 03/04/2023] [Revised: 03/25/2023] [Accepted: 05/22/2023] [Indexed: 06/02/2023]
Abstract
Proper food intake is important for maintaining good health in humans. Chocolate is known to exert anti-inflammatory effects; however, the mechanisms remain unclear. In this study, we aimed to investigate the effects of cocoa butter intake on gut immunity in rats and rabbits. Cocoa butter intake increased the lymph flow, cell density, and IL-1β, IL-6 and IL-10 levels in mesenteric lymph. Clodronate, a macrophage depletion compound, significantly enhanced the release of all cytokines. The immunoreactivities of macrophage markers CD68 and F4/80 in the jejunal villi were significantly decreased with clodronate. Piceatannol, a selective cell surface ATP synthase inhibitor significantly reduced the cocoa butter intake-mediated releases of IL-1β, IL-6 and IL-10. The immunoreactivities of cell surface ATP synthase were observed in rat jejunal villi. Shear stress stimulation on the myofibroblast cells isolated from rat jejunum released ATP and carbon dioxide depended with H+ release. In rabbit in vivo experiments, cocoa butter intake increased the concentrations of ATP and H+ in the portal vein. The in vitro experiments with isolated cells of rat jejunal lamina propria the pH of 3.0 and 5.0 in the medium released significantly IL-1β and IL-6. ATP selectively released IL-10. These findings suggest that cocoa butter intake regulates the gut immunity through the release and transport of IL-1β, IL-6, and IL-10 into mesenteric lymph vessels in a negative feedback system. In addition, the H+ and ATP released from cell surface ATP synthase in jejunal villi play key roles in the cocoa butter intake-mediated regulation of gut immunity.
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Affiliation(s)
- Nariaki Arai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Ryo Kajihara
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Mieko Takasaka
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Kei Amari
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Norika Kuneshita
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Daisuke Maejima
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Tomomi Watanabe-Asaka
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Moyuru Hayashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Yumiko Yokoyama
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Maki Kaidoh
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
| | - Yoshiko Kawai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan
- Division of Physiology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Toshio Ohhashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan.
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10
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Jiang H, Liu Y, Zhou R, Feng Y, Yan L. Circulating interleukins and risk of colorectal cancer: a Mendelian randomization study. Scand J Gastroenterol 2023; 58:1466-1473. [PMID: 37525405 DOI: 10.1080/00365521.2023.2240928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/11/2023] [Accepted: 07/20/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Recent studies have suggested a potential causal association between Interleukins (ILs) and Colorectal Cancer (CRC), and thus, it is important to examine the causal relationship between them using a Mendelian randomization (MR) approach. METHODS The instrumental variables were extracted for IL-1ra, IL-6, IL-6ra, IL-8, IL-16, IL-18, IL-27 from genome-wide association studies of European ancestry. Summary statistics of CRC were also retrieved. An inverse variance-weighted MR approach was implemented as the primary method to compute overall effects from multiple instruments. Additional MR approaches and sensitivity and heterogeneity pleiotropy analyses were also conducted respectively. RESULTS Our analysis suggested a causal effect between an increase of IL-8 and a reduced risk of CRC (odds ratio 0.65; 95% confidence interval, 0.43-0.98; p = 0.041) and did not provide evidence for causal effects of IL-1ra, IL-6, IL-6ra, IL-16, IL-18, IL-27. Sensitivity analyses suggested the robustness of MR results and that they were unlikely to be affected by unbalanced pleiotropy or significant heterogeneity. CONCLUSIONS This study investigated the role of ILs in the development of CRC and we found a causal effect between an increase of IL-8 and a reduced risk of CRC but not found evidence for causal effects of IL-1ra, IL-6, IL-6ra, IL-16, IL-18, IL-27. Sensitivity analyses suggested the robustness of MR results and that they were unlikely to be affected by unbalanced pleiotropy or significant heterogeneity.
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Affiliation(s)
- Haifeng Jiang
- Department of General Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yongming Liu
- Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Traumatology & Orthopedics, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Ru Zhou
- Department of General Surgery, RuiJin Hospital LuWan Branch, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yu Feng
- Department of General Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Liang Yan
- Department of General Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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11
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Zhao Y, Huang S, Xie R, Liu J. Extracellular ATP accelerates cell death and decreases tight junction protein ZO-1 in hypoxic cochlear strial marginal cells in neonatal rats. Cell Signal 2023:110732. [PMID: 37245680 DOI: 10.1016/j.cellsig.2023.110732] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 05/30/2023]
Abstract
In the cochlear, extracellular ATP (eATP) plays an important role in both physiological and pathological processes, but its role in the hypoxic cochlear remains unclear. The present study aims to investigate the relationship between eATP and hypoxic marginal cells (MCs) in the stria vascularis in cochlear. Combining various methodologies, we found that eATP accelerates cell death and decreases tight junction protein zonula occludens-1 (ZO-1) in hypoxic MCs. Flow cytometry and western blot analyses revealed an increase in apoptosis levels and suppression of autophagy, indicating that eATP causes additional cell death by increasing the apoptosis of hypoxic MCs. Given that autophagy inhibits apoptosis to protect MCs under hypoxia, apoptosis is probably enchanced by suppressing autophagy. Interleukin-33(IL-33)/suppression of tumorigenicity-2(ST-2)/matrix metalloprotein 9(MMP9) pathway activation was also observed during the process. Further experiments involving the use of additional IL-33 protein and an MMP9 inhibitor indicated that this pathway is responsible for the damage to the ZO-1 protein in hypoxic MCs. Our study revealed the adverse effect of eATP on the survival and ZO-1 protein expression of hypoxic MCs, as well as the underlying mechanism.
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Affiliation(s)
- Yanyun Zhao
- Department of Otorhinolaryngology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Sihan Huang
- Department of Otorhinolaryngology, Zhangzhou Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Renwei Xie
- Department of Otorhinolaryngology, Renhe Hospital, Baoshan District, Shanghai, China
| | - Jun Liu
- Department of Otorhinolaryngology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.
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12
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Alvizi L, Nani D, Brito LA, Kobayashi GS, Passos-Bueno MR, Mayor R. Neural crest E-cadherin loss drives cleft lip/palate by epigenetic modulation via pro-inflammatory gene-environment interaction. Nat Commun 2023; 14:2868. [PMID: 37225711 DOI: 10.1038/s41467-023-38526-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 05/05/2023] [Indexed: 05/26/2023] Open
Abstract
Gene-environment interactions are believed to play a role in multifactorial phenotypes, although poorly described mechanistically. Cleft lip/palate (CLP), the most common craniofacial malformation, has been associated with both genetic and environmental factors, with little gene-environment interaction experimentally demonstrated. Here, we study CLP families harbouring CDH1/E-Cadherin variants with incomplete penetrance and we explore the association of pro-inflammatory conditions to CLP. By studying neural crest (NC) from mouse, Xenopus and humans, we show that CLP can be explained by a 2-hit model, where NC migration is impaired by a combination of genetic (CDH1 loss-of-function) and environmental (pro-inflammatory activation) factors, leading to CLP. Finally, using in vivo targeted methylation assays, we demonstrate that CDH1 hypermethylation is the major target of the pro-inflammatory response, and a direct regulator of E-cadherin levels and NC migration. These results unveil a gene-environment interaction during craniofacial development and provide a 2-hit mechanism to explain cleft lip/palate aetiology.
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Affiliation(s)
- Lucas Alvizi
- Department of Cell and Developmental Biology, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Diogo Nani
- Centro de Estudos do Genoma Humano e Celulas-Tronco, Departamento de Genetica e Biologia Evolutiva, Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Luciano Abreu Brito
- Centro de Estudos do Genoma Humano e Celulas-Tronco, Departamento de Genetica e Biologia Evolutiva, Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Gerson Shigeru Kobayashi
- Centro de Estudos do Genoma Humano e Celulas-Tronco, Departamento de Genetica e Biologia Evolutiva, Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Maria Rita Passos-Bueno
- Centro de Estudos do Genoma Humano e Celulas-Tronco, Departamento de Genetica e Biologia Evolutiva, Instituto de Biociencias, Universidade de Sao Paulo, Sao Paulo, Brazil.
| | - Roberto Mayor
- Department of Cell and Developmental Biology, University College London, Gower Street, London, WC1E 6BT, UK.
- Center for Integrative Biology, Faculty of Sciences, Universidad Mayor, Santiago, Chile.
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13
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Boo KJ, Gonzales EL, Remonde CG, Seong JY, Jeon SJ, Park YM, Ham BJ, Shin CY. Hycanthone Inhibits Inflammasome Activation and Neuroinflammation-Induced Depression-Like Behaviors in Mice. Biomol Ther (Seoul) 2023; 31:161-167. [PMID: 36203404 PMCID: PMC9970841 DOI: 10.4062/biomolther.2022.073] [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: 05/30/2022] [Revised: 08/19/2022] [Accepted: 09/20/2022] [Indexed: 11/05/2022] Open
Abstract
Despite the various medications used in clinics, the efforts to develop more effective treatments for depression continue to increase in the past decades mainly because of the treatment-resistant population, and the testing of several hypotheses- and target-based treatments. Undesirable side effects and unresponsiveness to current medications fuel the drive to solve this top global health problem. In this study, we focused on neuroinflammatory response-mediated depression which represents a cluster of depression etiology both in animal models and humans. Several meta-analyses reported that proinflammatory cytokines such as interleukin 6 (IL-6) and tumor necrosis factor-α (TNF-α) were increased in major depressive disorder patients. Inflammatory mediators implicated in depression include type-I interferon and inflammasome pathways. To elucidate the molecular mechanisms of neuroinflammatory cascades underlying the pathophysiology of depression, we introduced hycanthone, an antischistosomal drug, to check whether it can counteract depressive-like behaviors in vivo and normalize the inflammation-induced changes in vitro. Lipopolysaccharide (LPS) treatment increased proinflammatory cytokine expression in the murine microglial cells as well as the stimulation of type I interferon-related pathways that are directly or indirectly regulated by Janus kinase-signal transducer and activator of transcription (JAK-STAT) activation. Hycanthone treatment attenuated those changes possibly by inhibiting the JAK-STAT pathway and inflammasome activation. Hycanthone also ameliorated depressive-like behaviors by LPS. Taken together, we suggest that the inhibitory action of hycanthone against the interferon pathway leading to attenuation of depressive-like behaviors can be a novel therapeutic mechanism for treating depression.
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Affiliation(s)
- Kyung-Jun Boo
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul 05029, Republic of Korea
| | - Edson Luck Gonzales
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul 05029, Republic of Korea
| | - Chilly Gay Remonde
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul 05029, Republic of Korea
| | - Jae Young Seong
- Graduate School of Medicine, Korea University, Seoul 02841, Republic of Korea
| | - Se Jin Jeon
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul 05029, Republic of Korea,Department of Integrative Biotechnology, College of Science and Technology, Sahmyook University, Seoul 01795, Republic of Korea
| | - Yeong-Min Park
- Graduate School of Medicine, Konkuk University, Seoul 05029, Republic of Korea
| | - Byung-Joo Ham
- Department of Psychiatry, Korea University Anam Hospital, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Chan Young Shin
- School of Medicine and Center for Neuroscience Research, Konkuk University, Seoul 05029, Republic of Korea,Graduate School of Medicine, Konkuk University, Seoul 05029, Republic of Korea,Corresponding Author E-mail: , Tel: +82-2-454-5630, Fax: +82-2-2030-7899
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14
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Tu Y, Kuang X, Zhang L, Xu X. The associations of gut microbiota, endocrine system and bone metabolism. Front Microbiol 2023; 14:1124945. [PMID: 37089533 PMCID: PMC10116073 DOI: 10.3389/fmicb.2023.1124945] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/16/2023] [Indexed: 04/25/2023] Open
Abstract
Gut microbiota is of great importance in human health, and its roles in the maintenance of skeletal homeostasis have long been recognized as the "gut-bone axis." Recent evidence has indicated intercorrelations between gut microbiota, endocrine system and bone metabolism. This review article discussed the complex interactions between gut microbiota and bone metabolism-related hormones, including sex steroids, insulin-like growth factors, 5-hydroxytryptamine, parathyroid hormone, glucagon-like peptides, peptide YY, etc. Although the underlying mechanisms still need further investigation, the regulatory effect of gut microbiota on bone health via interplaying with endocrine system may provide a new paradigm for the better management of musculoskeletal disorders.
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Affiliation(s)
- Ye Tu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinyi Kuang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ling Zhang
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Ling Zhang,
| | - Xin Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Xin Xu,
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15
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Zhu X, An W, Li X, Zhou B, Li H. Anti-inflammatory effects of Scutellaria baicalensis water extract in LPS-induced THP-1 Macrophages through metabolomics study. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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16
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Ma X, Di Q, Li X, Zhao X, Zhang R, Xiao Y, Li X, Wu H, Tang H, Quan J, Wu Z, Xiao W, Chen W. Munronoid I Ameliorates DSS-Induced Mouse Colitis by Inhibiting NLRP3 Inflammasome Activation and Pyroptosis Via Modulation of NLRP3. Front Immunol 2022; 13:853194. [PMID: 35865528 PMCID: PMC9296101 DOI: 10.3389/fimmu.2022.853194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 06/07/2022] [Indexed: 12/31/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) are increasingly common diseases characterized by chronic and relapsing inflammation of the gastrointestinal tract. NLRP3 might be a crucial regulator of the homeostatic balance of the intestine, but its upregulation leads to pyroptosis. Munronoid I is extracted and purified from Munronia sinica, which has shown an anti-inflammatory effect, but the efficacy of Munronoid I in IBD remains unproven. In this study, we attempted to determine the effect of Munronoid I on NLRP3 to regulate the inflammasome activation and pyroptosis in IBD. Our data demonstrated that Munronoid I treatment attenuated DSS-induced body weight loss, pathological injury of the colon, the production of IL-1β and IL-18, and the expression of pyroptosis-associated proteins in colon tissue in mice. Moreover, Munronoid I inhibited LPS/ATP-induced pyroptosis in mouse peritoneal macrophages, MODE-K cells, and DSS-induced pyroptosis in mouse colonic epithelial cells, and decreased the release of inflammatory cytokines IL-1β and IL-18 in mouse peritoneal macrophages. Mechanically, Munronoid I could suppress the NLRP3 inflammasome activation and pyroptosis by promoting the K48-linked ubiquitination and NLRP3 degradation. It is suggested that Munronoid I might be a potential therapeutic candidate for IBD.
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Affiliation(s)
- Xingyu Ma
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Qianqian Di
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Xiaoli Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Xibao Zhao
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Ruihan Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Yue Xiao
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Xunwei Li
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Han Wu
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Haimei Tang
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Jiazheng Quan
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Zherui Wu
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Weilie Xiao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Research & Development Center for Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, China
- *Correspondence: Weilie Xiao, ; Weilin Chen,
| | - Weilin Chen
- Marshall Laboratory of Biomedical Engineering, Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China
- *Correspondence: Weilie Xiao, ; Weilin Chen,
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17
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Kuc-Ciepluch D, Gorzkiewicz M, Pędziwiatr-Werbicka E, Barrios-Gumiel A, Lasak M, Mariak A, Sztandera K, Gomez R, de la Mata FJ, Lankoff A, Klajnert-Maculewicz B, Bryszewska M, Arabski M, Ciepluch K. The effect of surface modification of dendronized gold nanoparticles on activation and release of pyroptosis-inducing pro-inflammatory cytokines in presence of bacterial lipopolysaccharide in monocytes. Colloids Surf B Biointerfaces 2022; 217:112652. [PMID: 35772353 DOI: 10.1016/j.colsurfb.2022.112652] [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: 03/29/2022] [Revised: 05/31/2022] [Accepted: 06/17/2022] [Indexed: 11/15/2022]
Abstract
Biomedical applications of gold nanoparticles (AuNPs) may be limited by their toxicological effects. Although surface-modified AuNPs can induce apoptosis, less is known about whether they can induce other types of cell death. Pyroptosis, an inflammatory type of programmed cell death, can be induced in immune cells, especially macrophages, by bacterial endotoxins. Therefore, in this study, dendronized AuNPs were combined with bacterial lipopolysaccharides (LPSs) as the main stimulators of pro-inflammatory responses to test the induction of pyroptosis in THP-1 myeloid cell line. These AuNPs induced caspase-1 activity (3-4 times more compared to control) and enhanced the release of interleukin (IL)-18 and IL-1β without inducing gasdermin D cleavage and related pore formation. The production of pro-inflammatory cytokines occurred mainly visible during LPS treatment, although their secretion was observed only after administration of dendronized AuNPs (release of IL-1β to supernatant up to 80 pg/mL). These findings suggest that dendronized AuNPs can induce pyroptosis-like inflammatory mechanisms and that these mechanisms are enhanced in the presence of bacterial LPS. The intensity of this effect was dependent on AuNP surface modification. These results shed new light on the cytotoxicity of metal NPs, including immune responses, indicating that surface modifications play crucial roles in their nanotoxicological effects.
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Affiliation(s)
- Dorota Kuc-Ciepluch
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Michał Gorzkiewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland; Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University Düsseldorf, Universitätsstr. 1, Düsseldorf 40225, Germany
| | - Elżbieta Pędziwiatr-Werbicka
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Andrea Barrios-Gumiel
- Universidad de Alcalá (UAH), Dpto. de Química Orgánica y Química Inorgánica, Campus Universitario, Alcalá de Henares, Madrid E-28871, Spain
| | - Magdalena Lasak
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Aleksandra Mariak
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Krzysztof Sztandera
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Rafael Gomez
- Universidad de Alcalá (UAH), Dpto. de Química Orgánica y Química Inorgánica, Campus Universitario, Alcalá de Henares, Madrid E-28871, Spain
| | - F Javier de la Mata
- Universidad de Alcalá (UAH), Dpto. de Química Orgánica y Química Inorgánica, Campus Universitario, Alcalá de Henares, Madrid E-28871, Spain
| | - Anna Lankoff
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland; Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, Warsaw 03-195, Poland
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz 90-236, Poland
| | - Michał Arabski
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland
| | - Karol Ciepluch
- Division of Medical Biology, Jan Kochanowski University, Uniwersytecka Street 7, Kielce 25-406, Poland.
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18
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Han F, Zhao X, Li X, Peng L, Liu W, Han J. Bovine lactoferricin ameliorates intestinal inflammation and mucosal barrier lesions in colitis through NF-κB/NLRP3 signaling pathways. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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19
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TXNIP: A Double-Edged Sword in Disease and Therapeutic Outlook. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7805115. [PMID: 35450411 PMCID: PMC9017576 DOI: 10.1155/2022/7805115] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/17/2022] [Accepted: 03/21/2022] [Indexed: 12/15/2022]
Abstract
Thioredoxin-interacting protein (TXNIP) was originally named vitamin D3 upregulated protein-1 (VDUP1) because of its ability to bind to thioredoxin (TRX) and inhibit TRX function and expression. TXNIP is an alpha-arrestin protein that is essential for redox homeostasis in the human body. TXNIP may act as a double-edged sword in the cell. The balance of TXNIP is crucial. A study has shown that TXNIP can travel between diverse intracellular locations and bind to different proteins to play different roles under oxidative stress. The primary function of TXNIP is to induce apoptosis or pyroptosis under oxidative stress. TXNIP also inhibits proliferation and migration in cancer cells, although TXNIP levels decrease, and function diminishes in various cancers. In this review, we summarized the main structure, binding proteins, pathways, and the role of TXNIP in diseases, aiming to explore the double-edged sword role of TXNIP, and expect it to be helpful for future treatment using TXNIP as a therapeutic target.
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20
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Sobiepanek A, Kuryk Ł, Garofalo M, Kumar S, Baran J, Musolf P, Siebenhaar F, Fluhr JW, Kobiela T, Plasenzotti R, Kuchler K, Staniszewska M. The Multifaceted Roles of Mast Cells in Immune Homeostasis, Infections and Cancers. Int J Mol Sci 2022; 23:2249. [PMID: 35216365 PMCID: PMC8875910 DOI: 10.3390/ijms23042249] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 02/07/2023] Open
Abstract
Mast cells (MCs) play important roles in normal immune responses and pathological states. The location of MCs on the boundaries between tissues and the external environment, including gut mucosal surfaces, lungs, skin, and around blood vessels, suggests a multitude of immunological functions. Thus, MCs are pivotal for host defense against different antigens, including allergens and microbial pathogens. MCs can produce and respond to physiological mediators and chemokines to modulate inflammation. As long-lived, tissue-resident cells, MCs indeed mediate acute inflammatory responses such as those evident in allergic reactions. Furthermore, MCs participate in innate and adaptive immune responses to bacteria, viruses, fungi, and parasites. The control of MC activation or stabilization is a powerful tool in regulating tissue homeostasis and pathogen clearance. Moreover, MCs contribute to maintaining the homeostatic equilibrium between host and resident microbiota, and they engage in crosstalk between the resident and recruited hematopoietic cells. In this review, we provide a comprehensive overview of the functions of MCs in health and disease. Further, we discuss how mouse models of MC deficiency have become useful tools for establishing MCs as a potential cellular target for treating inflammatory disorders.
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Affiliation(s)
- Anna Sobiepanek
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (A.S.); (J.B.); (P.M.); (T.K.)
| | - Łukasz Kuryk
- National Institute of Public Health NIH—National Institute of Research, 00-791 Warsaw, Poland;
- Clinical Science, Targovax Oy, Lars Sonckin kaari 14, 02600 Espoo, Finland;
| | - Mariangela Garofalo
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy;
| | - Sandeep Kumar
- Clinical Science, Targovax Oy, Lars Sonckin kaari 14, 02600 Espoo, Finland;
| | - Joanna Baran
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (A.S.); (J.B.); (P.M.); (T.K.)
| | - Paulina Musolf
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (A.S.); (J.B.); (P.M.); (T.K.)
| | - Frank Siebenhaar
- Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany; (F.S.); (J.W.F.)
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, 12203 Berlin, Germany
| | - Joachim Wilhelm Fluhr
- Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany; (F.S.); (J.W.F.)
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Allergology and Immunology, 12203 Berlin, Germany
| | - Tomasz Kobiela
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (A.S.); (J.B.); (P.M.); (T.K.)
| | - Roberto Plasenzotti
- Department of Biomedical Research, Medical University of Vienna, Währingergürtel 18-20, 1090 Vienna, Austria;
| | - Karl Kuchler
- Max Perutz Labs Vienna, Center for Medical Biochemistry, Medical University of Vienna, Campus Vienna Biocenter, Dr. Bohr-Gasse 9/2, 1030 Vienna, Austria;
| | - Monika Staniszewska
- Centre for Advanced Materials and Technologies, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
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21
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Kamlungmak S, Nakpheng T, Kaewpaiboon S, Mudhar Bintang MAK, Prom-In S, Chunhachaichana C, Suwandecha T, Srichana T. Safety and Biocompatibility of Mupirocin Nanoparticle-Loaded Hydrogel on Burn Wound in Rat Model. Biol Pharm Bull 2021; 44:1707-1716. [PMID: 34719647 DOI: 10.1248/bpb.b21-00397] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mupirocin nanoparticle-loaded hydrogel (MLH) was successfully developed. This study focused on the safety of cell lines and the biocompatibility of MLH for wound healing in rat models. MLH was assessed by an analysis of cytotoxicity and the secretion of inflammatory cytokines in cell lines. The cytocompatibility of MLH was compared with mupirocin ointment on full-thickness burn wounds in rats. The results indicated that MLH and blank hydrogel had no toxicity to human epidermal keratinocytes and human fibroblast cells. MLH inhibited lipopolysaccharide (LPS) activity in macrophage-like cells resulting in low nitric oxide production and reduced inflammatory cytokine production (interleukin (IL)-1β) compared with a positive control (LPS only). In burn wounds, MLH and hydrogel healed the wound better than the other groups determined by wound contraction, reduced secretion, and the generation of new blood vessels, as well as promotion of hair follicle cells. Better granulation tissue proliferation, less necrosis, and a lower degree of inflammation were found in the MLH and blank hydrogel than in the mupirocin ointment. The hydrogel group reduced the macrophages (CD68) on day 14 at the edge of the wound. On day 28, T cells (CD3), B cells (CD20), and CD68+ cells were concentrated in the deeper subcutaneous tissue. Additionally, the transforming growth factor β1 (TGF-β1) concentration and matrix prometalloproteinase-2/tissue inhibitor of metalloproteinases-2 ratio in the MLH and hydrogel groups were less than those in the other groups. The MLH formulation was safe and effective in burn wound healing. Therefore, MLH formulations are promising candidates for further evaluation in clinical trials.
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Affiliation(s)
- Sukanjana Kamlungmak
- Drug Delivery System Excellence Center, Prince of Songkla University.,Department of the Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University
| | - Titpawan Nakpheng
- Drug Delivery System Excellence Center, Prince of Songkla University
| | - Sunisa Kaewpaiboon
- Drug Delivery System Excellence Center, Prince of Songkla University.,Department of the Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University
| | - Muhammad Ali Khumaini Mudhar Bintang
- Drug Delivery System Excellence Center, Prince of Songkla University.,Department of the Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University
| | - Supattra Prom-In
- Department of the Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Prince of Songkla University
| | | | - Tan Suwandecha
- Department of Pharmacology, Faculty of Science, Prince of Songkla University
| | - Teerapol Srichana
- Drug Delivery System Excellence Center, Prince of Songkla University.,Department of the Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University
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22
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Zeng J, Wan X, Liu T, Xiong Y, Xiang G, Peng Y, Zhu R, Zhou Y, Liu C. Chlorogenic acid ameliorates Klebsiella pneumoniae-induced pneumonia in immunosuppressed mice via inhibiting the activation of NLRP3 inflammasomes. Food Funct 2021; 12:9466-9475. [PMID: 34473137 DOI: 10.1039/d0fo03185b] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chlorogenic acid (CGA) possesses a wide variety of bioactive properties, such as antioxidation, anti-inflammation and anti-bacteria. This study was aimed at exploring the effects of CGA of anti-inflammation and anti-bacteria on mouse pneumonia prepared by immunosuppressed mice infected with Klebsiella pneumoniae (K. pneumoniae) in vivo and the cellular inflammasomes through lipopolysaccharide (LPS) and adenosine triphosphate (ATP)-induced RAW 264.7 murine macrophages in vitro. Mice received CGA treatment (30 and 90 mg kg-1) for 8 consecutive days and on the fourth day immunosuppression in mice was induced by cyclophosphamide (40 mg kg-1) for 5 days before inoculation of K. pneumoniae. Immunosuppressed mice infected with K. pneumoniae developed severe pneumonia, with marked interstitial vascular congestion, widened alveolar intervals, infiltration of monocytes, lymphocytes and macrophages as well as the damage of epithelial architecture, with growing mortality and count forming unit (CFU). CGA treatment significantly decreased the ratio of lung/body weight, reduced the severity of pneumonia induced by K. pneumoniae, decreased the lung injury, inflammatory cell infiltration scores and CD68 protein expression, inhibited the expression of interleukin (IL)-6, IL-8, tumor necrosis factor (TNF)-α, and elevated the expression of IL-10. Meanwhile, we investigated the mechanism of CGA to counter K. pneumoniae-induced pneumonia and found that CGA remarkably repressed the activation of nucleotide-binding domain like receptor protein 3 (NLRP3) inflammasome. Altogether, our results indicate that the dietary intake of CGA or its rich foods ameliorates K. pneumonia-induced pneumonia by inhibiting the activation of NLRP3 inflammasomes.
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Affiliation(s)
- Junhao Zeng
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, 443000, China.
| | - Xiaoyu Wan
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, 443000, China.
| | - Ting Liu
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Ying Xiong
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Gan Xiang
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Yali Peng
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Ronghua Zhu
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Yongqin Zhou
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, 443000, China. .,The Institute of Infection and Inflammation, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Chaoqi Liu
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China.,Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Yichang, Hubei, 443000, China.
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23
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Zheng J, Yao L, Zhou Y, Gu X, Wang C, Bao K, Sun Y, Hong M. A novel function of NLRP3 independent of inflammasome as a key transcription factor of IL-33 in epithelial cells of atopic dermatitis. Cell Death Dis 2021; 12:871. [PMID: 34561424 PMCID: PMC8463682 DOI: 10.1038/s41419-021-04159-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/24/2021] [Accepted: 09/03/2021] [Indexed: 12/25/2022]
Abstract
Atopic dermatitis (AD) is a common chronic pruritic inflammatory skin disorder characterized by recurrent eczematous lesions. Interleukin (IL)-33, a cytokine of the IL-1 family, was found to play an important role in the pathogenesis of AD. As a key component of the inflammasome, NLRP3 has been mostly described in myeloid cells that to mediate inflammasome activation conducted proinflammatory cytokine production of the IL-1 family. However, the role of NLRP3 inflammasome in the pathogenesis of AD, as well as IL-33 processing are highly controversial. Whether NLRP3 can mediate IL-33 expression and secretion independently of the inflammasome in the epithelium of AD has remained unclear. In this article, we found the mRNA expression of Il33 and Nlrp3 were notably increased in the lesional skin of AD patients compared to healthy controls. We then found a significant positive correlation between the expression of Nlrp3 and Il33 in the epithelium of MC903-mediated AD mice model, but no changes were observed for Il36α, Il36γ, Il1β, or Il18 mRNA expression, as well as IL-1β or IL-18 production. Overexpression of NLRP3 in human immortalized epithelial cells increased IL-33 expression, whereas siRNA targeting NLRP3 abolished IL-33 expression. In addition, inhibition of NLRP3 inflammasome activation or caspase-1 activity with MCC950 or VX-765 showed no effect on the expression and secretion of IL-33 in AD mice. Unlike myeloid cells, NLRP3 predominantly located in the nucleus of epithelial cells, which could directly bind to Il33 specific-promoters and transactivate it through an interaction with transcription factor IRF4. Furthermore, NLRP3 deficient mice exhibited a significant alleviated epidermis inflammation and decreased mRNA expression and secretion of IL-33 in MC903-mediated AD mice without interfering with TSLP and IL-1β production. Our results demonstrate a novel ability of NLRP3 to function as a crucial transcription factor of IL-33 in epithelium independently of inflammasome that to mediate the pathological process of AD.
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MESH Headings
- Animals
- Calcitriol/analogs & derivatives
- Cell Nucleus/metabolism
- Dermatitis, Atopic/genetics
- Dermatitis, Atopic/metabolism
- Dermatitis, Atopic/pathology
- Disease Models, Animal
- Epithelial Cells/metabolism
- Gene Expression Regulation
- HaCaT Cells
- Humans
- Inflammasomes/metabolism
- Interferon Regulatory Factors/metabolism
- Interleukin-33/metabolism
- Male
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- NLR Family, Pyrin Domain-Containing 3 Protein/deficiency
- NLR Family, Pyrin Domain-Containing 3 Protein/metabolism
- Protein Binding
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Transcription Factors/metabolism
- Mice
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Affiliation(s)
- Jie Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
- Department of Pharmacology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
| | - Lu Yao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
- Department of Biotherapy, Nanjing Jinling Hospital, Nanjing, 210002, China
| | - Yijing Zhou
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
| | - Xiaoqun Gu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
| | - Can Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
| | - Kaifan Bao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
- Department of Immunology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China
| | - Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Chemistry and Biomedicine Innovation Center, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Min Hong
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing, 210023, China.
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24
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An Update on the Pathogenic Role of Macrophages in Adult-Onset Still's Disease and Its Implication in Clinical Manifestations and Novel Therapeutics. J Immunol Res 2021; 2021:8998358. [PMID: 34239943 PMCID: PMC8238602 DOI: 10.1155/2021/8998358] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/23/2021] [Accepted: 05/28/2021] [Indexed: 12/18/2022] Open
Abstract
Increasing evidence indicates a pivotal role of macrophages in innate immunity, which contributes to the pathogenesis of adult-onset Still's disease (AOSD). Despite the available reviews that summarized the pathogenic role of proinflammatory cytokines in AOSD, a systematic approach focusing on the crucial role of macrophages in this disease is still lacking. This review summarizes the updated functions of macrophages in AOSD and their implication in clinical manifestations and therapeutics. We searched the MEDLINE database using the PubMed interface and reviewed the English-language literature as of 31 March 2021, from 1971 to 2021. We focus on the existing evidence on the pathogenic role of macrophages in AOSD and its implication in clinical characteristics and novel therapeutics. AOSD is an autoinflammatory disease mainly driven by the innate immune response. Among the innate immune responses, macrophage activation is a hallmark of AOSD pathogenesis. The pattern recognition receptors (PRRs) on macrophages recognize pathogen-associated molecular patterns and damage-associated molecular patterns and subsequently cause overproduction of proinflammatory cytokines and recruit adaptive immunity. Some biomarkers, such as ferritin and gasdermin D, reflecting macrophage activation were elevated and correlated with AOSD activity. Given that macrophage activation with the overproduction of proinflammatory cytokines plays a pathogenic role in AOSD, these inflammatory mediators would be the therapeutic targets. Accordingly, the inhibitors to interleukin- (IL-) 1, IL-6, and IL-18 have been shown to be effective in AOSD treatment. Gaining insights into the pathogenic role of macrophages in AOSD can aid in identifying disease biomarkers and therapeutic agents for this disease.
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25
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Shi L, Yuan Z, Liu J, Cai R, Hasnat M, Yu H, Feng J, Wang Z, Zhao Q, Wu M, Huang X, Shen F, Yin L, Yu Y, Liang T. Modified Simiaowan prevents articular cartilage injury in experimental gouty arthritis by negative regulation of STAT3 pathway. JOURNAL OF ETHNOPHARMACOLOGY 2021; 270:113825. [PMID: 33460754 DOI: 10.1016/j.jep.2021.113825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Modified Simiaowan (MSW) is a traditional Chinese medicine formula that is composed of six herbs. It has been widely used in the treatment of gouty arthritis. AIM OF THE STUDY This study was designed to investigate the effect of MSW on gouty arthritis and explore the possible mechanisms. MATERIAL AND METHODS The rat gouty arthritis model was established by intra-articular injection of Monosodium Urate (MSU) crystal, and then treated with MSW for 5 days. The perimeter of the knee joints was measured in a time-dependent manner and serum samples were collected for the detection of TNF-α, IL-1β, and IL-6 protein levels by ELISA. The protein expressions of MMP-3, TIMP-3, STAT3, and p-STAT3 in cartilage tissues and C28/I2 cells were detected by Western blot, and the levels of proteoglycan in primary chondrocytes and cartilage tissues were determined by toluidine blue staining. In addition, AG490 and IL-6 were used in vitro to explore the function of IL-6/STAT3 pathway in the protective effect of MSU. RESULTS MSW reduced the joint swelling rate in gouty arthritis model and inhibited MSU induced up-regulation of IL-1β, TNF-α, and IL-6 protein levels in serum and synovial fluid. IL-1β induced an increase in p-STAT3 and MMP-3 protein expression in C28/I2 cells, as well as a decrease in TIMP-3. MSW serum inhibited the protein expression changes induced by IL-1β in vitro. Furthermore, inhibition of STAT3 signaling negated the effect of MSW serum on p-STAT3, MMP-3, and TIMP-3 protein levels in C28/I2 cells. MSW also increased the content of proteoglycan significantly both in vivo and in vitro. CONCLUSION Our data indicated that MSW protected rats from MSU-induced experimental gouty arthritis and IL-1β/IL-6/STAT3 pathway played an essential role in the protective effect of MSU against GA.
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Affiliation(s)
- Le Shi
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Ziqiao Yuan
- China Pharmaceutical University, Nanjing, 210009, China.
| | - Jing Liu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Rui Cai
- Jiangsu Provincial Hospital of Traditional Chinese Medicine, Nanjing, 210029, China.
| | - Muhammad Hasnat
- Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, Outfall Road, Lahore, 54600, Pakistan
| | - Hui Yu
- Nanjing Xinbai Pharmaceutical Co., Ltd, Nanjing, 210023, China.
| | - Jing Feng
- Nanjing Xinbai Pharmaceutical Co., Ltd, Nanjing, 210023, China.
| | - Zhanglian Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Qianqian Zhao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Min Wu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Xinxin Huang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Fei Shen
- Nanjing Xinbai Pharmaceutical Co., Ltd, Nanjing, 210023, China.
| | - Lian Yin
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Yun Yu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Tao Liang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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26
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Ferrari D, la Sala A, Milani D, Celeghini C, Casciano F. Purinergic Signaling in Controlling Macrophage and T Cell Functions During Atherosclerosis Development. Front Immunol 2021; 11:617804. [PMID: 33664731 PMCID: PMC7921745 DOI: 10.3389/fimmu.2020.617804] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/21/2020] [Indexed: 12/15/2022] Open
Abstract
Atherosclerosis is a hardening and narrowing of arteries causing a reduction of blood flow. It is a leading cause of death in industrialized countries as it causes heart attacks, strokes, and peripheral vascular disease. Pathogenesis of the atherosclerotic lesion (atheroma) relies on the accumulation of cholesterol-containing low-density lipoproteins (LDL) and on changes of artery endothelium that becomes adhesive for monocytes and lymphocytes. Immunomediated inflammatory response stimulated by lipoprotein oxidation, cytokine secretion and release of pro-inflammatory mediators, worsens the pathological context by amplifying tissue damage to the arterial lining and increasing flow-limiting stenosis. Formation of thrombi upon rupture of the endothelium and the fibrous cup may also occur, triggering thrombosis often threatening the patient’s life. Purinergic signaling, i.e., cell responses induced by stimulation of P2 and P1 membrane receptors for the extracellular nucleotides (ATP, ADP, UTP, and UDP) and nucleosides (adenosine), has been implicated in modulating the immunological response in atherosclerotic cardiovascular disease. In this review we will describe advancements in the understanding of purinergic modulation of the two main immune cells involved in atherogenesis, i.e., monocytes/macrophages and T lymphocytes, highlighting modulation of pro- and anti-atherosclerotic mediated responses of purinergic signaling in these cells and providing new insights to point out their potential clinical significance.
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Affiliation(s)
- Davide Ferrari
- Department of Life Science and Biotechnology, Section of Microbiology and Applied Pathology, University of Ferrara, Ferrara, Italy
| | - Andrea la Sala
- Certification Unit, Health Directorate, Bambino Gesù Pediatric Hospital, IRCCS, Rome, Italy
| | - Daniela Milani
- Department of Translational Medicine and LTTA Centre, University of Ferrara, Ferrara, Italy
| | - Claudio Celeghini
- Department of Translational Medicine and LTTA Centre, University of Ferrara, Ferrara, Italy
| | - Fabio Casciano
- Department of Translational Medicine and LTTA Centre, University of Ferrara, Ferrara, Italy
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27
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Liu YF, Xing GL, Chen Z, Tu SH. Long non-coding RNA HOTAIR knockdown alleviates gouty arthritis through miR-20b upregulation and NLRP3 downregulation. Cell Cycle 2021; 20:332-344. [PMID: 33467979 PMCID: PMC7889175 DOI: 10.1080/15384101.2021.1874696] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
This study aimed to determine the mechanism underlying the regulation of gout by the HOX transcript antisense RNA (HOTAIR) long non-coding RNA (lncRNA). The expression levels of HOTAIR, miR-20b, and Nlrp3 were estimated by qRT-PCR and western blotting. The methylation level of HOTAIR was detected by methylation-specific PCR. The recruitment of DNA methyltransferase 1 (DNMT1) to the lncRNA HOTAIR promoter was confirmed by a ChIP assay. RNA immunoprecipitation and RNA pull-down assays were used to confirm the interaction between HOTAIR and miR-20b. LncRNA HOTAIR and Nlrp3 expression was upregulated, and that of miR-20b was downregulated in synovial fluid mononuclear cells (SFMCs) collected from patients with gouty arthritis and monosodium urate (MSU)-stimulated THP-1 cells. Interleukin (IL)-1β level increased substantially upon stimulation by MSU crystals. The methylation percentage of HOTAIR was reduced in SFMCs from patients with gouty arthritis and MSU-stimulated THP-1 cells. DNMT1 expression was downregulated in MSU-stimulated THP-1 cells, and DNMT1 knockdown increased lncRNA HOTAIR expression. In addition, the interaction of HOTAIR with miR-20b was confirmed. HOTAIR knockdown suppressed Nlrp3 expression and the secretion of inflammatory cytokines via miR-20b regulation. Finally, in vivo experiments showed that HOTAIR knockdown alleviated ankle swelling in a mouse model of gouty arthritis. These findings suggest that lncRNA HOTAIR knockdown suppresses inflammatory cytokine secretion by upregulating miR-20b and downregulating NLRP3, thereby alleviating ankle swelling in gouty arthritis.
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Affiliation(s)
- Ya-Fei Liu
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University , Zhengzhou, People's Republic of China
| | - Guo-Lan Xing
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University , Zhengzhou, People's Republic of China
| | - Zhe Chen
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, People's Republic of China
| | - Sheng-Hao Tu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, People's Republic of China
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28
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Comparation of Anti-Inflammatory and Antioxidantactivities of Curcumin, Tetrahydrocurcuminand Octahydrocurcuminin LPS-Stimulated RAW264.7 Macrophages. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2020:8856135. [PMID: 33424997 PMCID: PMC7772021 DOI: 10.1155/2020/8856135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/13/2020] [Accepted: 12/01/2020] [Indexed: 12/12/2022]
Abstract
Curcumin (CUR) possesses pronounced anti-inflammatory and antioxidant activities. Generally, the clinical application of CUR is restricted due to its apparent unstability and poor absorption, and the biological activities of CUR may be closely associated with its metabolites. Tetrahydrocurcumin (THC) and octahydrocurcumin (OHC) are two major hydrogenated metabolites of CUR with appreciable biological potentials. Here, we comparatively explored the anti-inflammatory and antioxidant activities of CUR, THC, and OHC in lipopolysaccharide- (LPS-) induced RAW264.7 macrophages. The results revealed that CUR, THC, and OHC dose-dependently inhibited the generation of NO and MCP-1 as well as the gene expression of MCP-1 and iNOS. Additionally, CUR, THC, and OHC significantly inhibited NF-κB activation and p38MAPK and ERK phosphorylation, while substantially upregulated the Nrf2 target gene expression (HO-1, NQO-1, GCLC, and GCLM). Nevertheless, zinc protoporphyrin (ZnPP), a typical HO-1 inhibitor, significantly reversed the alleviative effect of CUR, THC, and OHC on LPS-stimulated ROS generation. These results demonstrated that CUR, THC, and OHC exerted beneficial effect on LPS-stimulated inflammatory and oxidative responses, at least partially, through inhibiting the NF-κB and MAPKs pathways and activating Nrf2-regulated antioxidant gene expression. Particularly, THC and OHC might exert superior antioxidant and anti-inflammatory activities to CUR in LPS-stimulated RAW264.7 cells, which can be further explored to be a promising novel effective agent for inflammatory treatment.
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29
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Zeng J, Zhang D, Wan X, Bai Y, Yuan C, Wang T, Yuan D, Zhang C, Liu C. Chlorogenic Acid Suppresses miR-155 and Ameliorates Ulcerative Colitis through the NF-κB/NLRP3 Inflammasome Pathway. Mol Nutr Food Res 2020; 64:e2000452. [PMID: 33078870 DOI: 10.1002/mnfr.202000452] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 10/08/2020] [Indexed: 12/12/2022]
Abstract
SCOPE The over-activation of the nucleotide-binding domain like receptor protein 3 (NLRP3) inflammasome plays an important role in the pathogenesis of ulcerative colitis (UC). Chlorogenic acid (CGA) exposure is identified as an effective strategy for repressing inflammatory responses. METHODS AND RESULTS In this study, the NLRP3 inflammasome model with LPS/ATP-induced RAW264.7 cells in vitro and dextran-sulfate-sodium (DSS)-induced colitis in mice are used to evaluate the effect of CGA on NLRP3 inflammasome-related signaling. The results suggest that CGA suppressed the expression of NLRP3 inflammasome-related genes (apoptosis-associated speck-like protein containing CARD (ASC), cysteine-requiring aspartate protease (Caspase)-1 p45, Caspase-1 p20, pro-/cleaved-interleukin (IL)-1β, pro-/cleaved-IL-18), p-nuclear factor kappa B (NF-κB) protein, and miR-155 in mice with colitis. Gain- and loss-of-function studies of miR-155 are performed to elucidate its role in inflammation. Moreover, activation of the NF-κB/NLRP3 inflammasome pathway and miR-155 expression is investigated. CGA exposure in lipopolysaccharide (LPS)/adenosine triphosphate (ATP)-stimulated RAW264.7 cells leads to a decrease in p-NK-κB and NLRP3 inflammasome-related proteins, which is dependent on the downregulation of miR-155 expression. CONCLUSIONS These findings indicate that CGA prevented colitis by downregulating miR-155 expression and inactivating the NF-κB/NLRP3 inflammasome pathway in macrophages. The current study has promising therapeutic implications in the treatment of UC.
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Affiliation(s)
- Junhao Zeng
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Dengqing Zhang
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Xiaoyu Wan
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Yuanling Bai
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Chengfu Yuan
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Ting Wang
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Ding Yuan
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Changcheng Zhang
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
| | - Chaoqi Liu
- College of Medical Science, China Three Gorges University, Yichang, Hubei, 443000, China
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Interleukin-18 Is a Prognostic Marker and Plays a Tumor Suppressive Role in Colon Cancer. DISEASE MARKERS 2020; 2020:6439614. [PMID: 33294056 PMCID: PMC7714607 DOI: 10.1155/2020/6439614] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 09/17/2020] [Accepted: 11/11/2020] [Indexed: 12/24/2022]
Abstract
Interleukin-18 (IL-18) belongs to the IL-1 family and is an essential proinflammatory and immune regulatory cytokine. The present study was designed to investigate the expression and function of IL-18 in colon cancer. In clinical analyses, mRNA and protein expressions of IL-18 were decreased in tissues of colon cancer patients. This decreased expression of IL-18 was significantly correlated with the tumor size (P = 0.001) and American Joint Committee on Cancer (AJCC) stage (P = 0.013). Patients with IL-18-positive tumors had a better survival rate than patients with IL-18-negative tumors. Moreover, upregulation of IL-18 inhibited colon cancer cell proliferation. Our data suggest that the decreased expression of IL-18 in colon cancer was associated with prognosis and tumor proliferation. IL-18 may be considered a novel tumor suppressor and a potential therapeutic target for colon cancer patients.
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Du C, Xi C, Wu C, Sha J, Zhang J, Li C. Ginkgo biloba extract protects early brain injury after subarachnoid hemorrhage via inhibiting thioredoxin interacting protein/NLRP3 signaling pathway. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2020; 23:1340-1345. [PMID: 33149868 PMCID: PMC7585531 DOI: 10.22038/ijbms.2020.42834.10090] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Objective(s): To investigate the effect of Ginkgo biloba extract EGb761 in early brain injury (EBI) after subarachnoid hemorrhage (SAH) and its mechanism. Materials and Methods: The SAH rat model was constructed and pre-treated with EGb761.The neurological function, severity of SAH, water content of brain tissue, damage degree of the blood-brain barrier, related indexes of oxidative stress, and the level of inflammatory cytokines were compared among the groups. The expression of TXNIP/NLRP3 signaling pathway-related proteins in brain tissues was detected by Western blot. Results: After SAH modeling, the neurological function score was significantly reduced, the degree of brain injury, levels of oxidative stress, inflammatory factors, expression of NLRP3 and TXNIP were all increased. Compared with the SAH rats, the neurological function score of rats pre-treated by EGb761 was higher, the degree of brain injury, levels of oxidative stress and inflammatory factors, expression of NLRP3 and TXNIP were all lower. Conclusion: EGb761 could protect neurological injury after SAH and its mechanism may be that EGb761 could inhibit the activation of the TXNIP/NLRP3 signaling pathway and inflammatory reaction after oxidative stress.
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Affiliation(s)
- Chuan Du
- Neurosurgery Department, Zhangqiu District People's Hospital, Jinan 250200, China
| | - Chao Xi
- Cardiothoracic Surgery Department, Zhangqiu District People's Hospital, Jinan250200, China
| | - Chunxiao Wu
- Pharmacy Intravenous Admixture Services, Zhangqiu District People's Hospital, Jinan 250200, China
| | - Jichang Sha
- Neurosurgery Department, Zhangqiu District People's Hospital, Jinan 250200, China
| | - Jinan Zhang
- ENT Department, Zhangqiu District People's Hospital, Jinan 250200, China
| | - Chao Li
- Neurosurgery Department, Qilu Hospital of Shandong University, Jinan 250012, China
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Li HF, Wu YL, Tseng TL, Chao SW, Lin H, Chen HH. Inhibition of miR-155 potentially protects against lipopolysaccharide-induced acute lung injury through the IRF2BP2-NFAT1 pathway. Am J Physiol Cell Physiol 2020; 319:C1070-C1081. [PMID: 33052070 DOI: 10.1152/ajpcell.00116.2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Sepsis-induced lung injury is a lethal complication with no effective treatment options, affecting millions of people worldwide. Oroxylin A (OroA) is a natural flavonoid with potent anticancer effects, but its modulating effect on inflammation through microRNAs (miRs) is not apparent. In this report, we investigated the target genes of the miR pathway mediated by OroA and assessed the potential for novel treatments of septic lung injury. An miR array screening and quantitative polymerase chain reaction identified that miR-155-5p could be a candidate regulated by OroA. Bioinformatics analysis indicated that interferon regulatory factor-2-binding protein-2 (IRF2BP2) might be a target of miR-155-5p, and this hypothesis was verified through reporter assays. In addition, an immunoprecipitation assay demonstrated that OroA increased the binding activity of IRF2BP2 to the nuclear factor of activated T-cells 1 (NFAT1), causing inducible nitric oxide synthase to cause an inflammatory reaction. Finally, the direct injection of short hairpin RNA (shRNA)-miR-155-5p into the bone marrow of mice ameliorated LPS-induced acute lung injury and inflammation in mice. Our results provide new mechanistic insights into the role of the OroA-induced miR-155-5p-IRF2BP2-NFAT1 axis in sepsis, demonstrating that direct bone marrow injection of lentivirus containing shRNA-155-5p could prove to be a potential future clinical application in alleviating sepsis-induced acute lung injury.
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Affiliation(s)
- Hsiao-Fen Li
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,PhD Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Yueh-Lin Wu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Tzu-Ling Tseng
- Department of Medical Research, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Shih-Wei Chao
- Drug Development Center, China Medical University, Taichung, Taiwan
| | - Heng Lin
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,PhD Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Hsi-Hsien Chen
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
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Feng YS, Tan ZX, Wang MM, Xing Y, Dong F, Zhang F. Inhibition of NLRP3 Inflammasome: A Prospective Target for the Treatment of Ischemic Stroke. Front Cell Neurosci 2020; 14:155. [PMID: 32581721 PMCID: PMC7283578 DOI: 10.3389/fncel.2020.00155] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 05/11/2020] [Indexed: 12/11/2022] Open
Abstract
Stroke is one of the major devastating diseases with no effective medical therapeutics. Because of the high rate of disability and mortality among stroke patients, new treatments are urgently required to decrease brain damage following a stroke. In recent years, the inflammasome is a novel breakthrough point that plays an important role in the stroke, and the inhibition of inflammasome may be an effective method for stroke treatment. Briefly, inflammasome is a multi-protein complex that causes activation of caspase-1 and subsequent production of pro-inflammatory factors including interleukin (IL)-18 and IL-1β. Among them, the NLRP3 inflammasome is the most typical inflammasome, which can detect cell damage and mediate inflammatory response to tissue damage in ischemic stroke. The NLRP3 inflammasome has become a key mediator of post-ischemic inflammation, leading to a cascade of inflammatory reactions and cell death eventually. Thus, NLRP3 inflammasome is an ideal therapeutic target due to its important role in the inflammatory response after ischemic stroke. In this mini review article, we will summarize the structure, assembly, and regulation of NLRP3 inflammasome, the role of NLRP3 inflammasome in ischemic stroke, and several treatments targeting NLRP3 inflammasome in ischemic stroke. The further understanding of the mechanism of NLRP3 inflammasome in patients with ischemic stroke will provide novel targets for the treatment of cerebral ischemic stroke patients.
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Affiliation(s)
- Ya-Shuo Feng
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zi-Xuan Tan
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Man-Man Wang
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ying Xing
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Fang Dong
- Department of Clinical Laboratory Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Feng Zhang
- Department of Rehabilitation Medicine, The Third Hospital of Hebei Medical University, Shijiazhuang, China.,Hebei Provincial Orthopedic Biomechanics Key Laboratory, The Third Hospital of Hebei Medical University, Shijiazhuang, China
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Pan Y, Zhao X, Kim SH, Kang SA, Kim YG, Park KY. Anti-inflammatory effects of Beopje curly dock (Rumex crispus L.) in LPS-induced RAW 264.7 cells and its active compounds. J Food Biochem 2020; 44:e13291. [PMID: 32458452 DOI: 10.1111/jfbc.13291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/20/2020] [Accepted: 05/02/2020] [Indexed: 12/21/2022]
Abstract
Inflammation is a defense response of the body to stimuli. Curly dock (CD) is an herbal food with anti-inflammatory effects. Beopje is an herbal food processing method that reduces toxicity and enhances beneficial effects. This study investigated the effects of CD and Beopje curly dock (CD-B) extracts on lipopolysaccharide (LPS)-induced inflammatory damage in RAW 264.7 cells. Cell survival rate and nitrite concentration were determined using the MTT assay and Griess method, respectively. Enzyme-linked immunosorbent assay was used to detect the inflammatory cytokine levels. The mRNA and protein expression levels of inflammatory associated genes were detected by qPCR and Western blot, respectively. CD and CD-B extracts compositions were assessed by UPLC-Q-TOF MS analysis. Our results indicate that CD-B has a more significant inhibitory effect on the LPS-induced inflammatory response in RAW 264.7 cells than CD, suggesting that the Beopje process potentially enhances the anti-inflammatory effect of CD. PRACTICAL APPLICATIONS: Long-term inflammation can cause a variety of chronic diseases. Therefore, it is necessary to suppress the occurrence of body inflammation in time. This study preliminarily clarified the mechanism of herbal foods to alleviate inflammation by regulating the immune response, and further confirms that applying the Beopje process enhances the anti-inflammatory effect. This research can serve as a significant reference for future research, prevention and treatment of inflammation-related diseases, and the development of functional foods with anti-inflammatory activity. It also provides a theoretical basis for the further reasonable application of Beopje processing method.
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Affiliation(s)
- Yanni Pan
- Department of Food Science and Biotechnology, Cha University, Seongnam, South Korea.,Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
| | - Seung-Hee Kim
- Department of Conversing Technology, Graduate School of Venture, Hoseo University, Seoul, South Korea
| | - Soon-Ah Kang
- Department of Conversing Technology, Graduate School of Venture, Hoseo University, Seoul, South Korea
| | | | - Kun-Young Park
- Department of Food Science and Biotechnology, Cha University, Seongnam, South Korea.,Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing, China.,Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing, China
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Lin HH, Chen HL, Janapatla RP, Chen CL, Chiu CH. Hyperexpression of type III secretion system of Salmonella Typhi linked to a higher cytotoxic effect to monocyte-derived macrophages by activating inflammasome. Microb Pathog 2020; 146:104222. [PMID: 32387390 DOI: 10.1016/j.micpath.2020.104222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/16/2020] [Accepted: 04/20/2020] [Indexed: 12/21/2022]
Abstract
Inflammasome activation is an important host response to infectious diseases, but the difference in inflammasome activation between typhoid fever and non-typhoidal Salmonella infection has been rarely studied. To determine whether inflammasome activation in macrophages after S. Typhi and S. Typhimurium infection is different, we measured pyroptosis, caspase-1 activation, and IL-1β secretion in monocyte-derived macrophages infected with S. Typhi or S. Typhimurium both in vitro and ex vivo. The role of Vi capsule and virulence genes in Salmonella pathogenicity island-1 (SPI-1), belonging to type III secretion system, was also examined. S. Typhi caused more pyroptosis, caspase-1 activation, and IL-1β production than S. Typhimurium did, predominantly within 2 h of infection, in the context of high number of infecting bacteria. Mutagenesis and complementation experiments confirmed that SPI-1 effectors but not Vi were associated with greater inflammasome activation. The expression levels of invA and hilA were significantly higher in S. Typhi than in S. Typhimurium at early log phase in SPI-1 environment. Thus, S. Typhi, relative to its non-typhoidal counterpart, S. Typhimurium, induces greater SPI-1-dependent inflammasome activation in monocyte-derived macrophages. This finding may explain why S. Typhi causes a hyperinflammatory state at bacteremic stage in typhoid fever.
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Affiliation(s)
- Hsin-Hung Lin
- Graduate Institute of Biomedical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan; Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan; Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Hsiu-Ling Chen
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | | | - Chyi-Liang Chen
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Cheng-Hsun Chiu
- Graduate Institute of Biomedical Sciences, Chang Gung University College of Medicine, Taoyuan, Taiwan; Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan; Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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Qi R, Zhang W, Zheng L, Xu M, Rong R, Zhu T, Yang C. Cyclic helix B peptide ameliorates renal tubulointerstitial fibrosis induced by unilateral ureter obstruction via inhibiting NLRP3 pathway. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:167. [PMID: 32309314 PMCID: PMC7154394 DOI: 10.21037/atm.2020.02.12] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background Renal fibrosis is the inevitable outcome of all progressive chronic kidney diseases (CKD) and leads to a gradual loss of renal function. We previously reported cyclic helix B peptide (CHBP), a novel synthesized peptide derived from erythropoietin, had shown effective renoprotection. In this study, we investigated the anti-fibrotic and renoprotective effect of CHBP in a murine renal tubulointerstitial fibrosis model induced by unilateral ureter obstruction (UUO). Methods Mice were subjected to the UUO model and CHBP was given intraperitoneally. To assess the therapeutic effects of CHBP, pathological injury, deposition of extracellular matrix (ECM) and the progression of epithelial-mesenchymal transition (EMT) were examined in vivo. The anti-fibrotic effects of CHBP was validated in vitro using TCMK-1 cells treated with TGF-β1. Involvement of the NLRP3 pathway was demonstrated both in vivo and in vitro. Results CHBP significantly ameliorated renal tubulointerstitial injury and fibrosis in terms of ECM deposition. The EMT process was also alleviated after CHBP treatment. Similar therapeutic effects of CHBP were also observed in vitro in TGF-β1 treated tubular epithelial cells (TECs). NLRP3/caspase-1/IL-1β pathway was involved and activated upon injury, both in vivo and in vitro. While the activation of the NLRP3 pathway was found to be in negative correlation with CHBP treatment. CHBP could suppress the activation of NLRP3 and its downstream inflammatory mediators even with addition of extracellular ATP, a direct activator of the NLRP3 inflammasome. Conclusions Our results suggest that CHBP could effectively protect the kidney from renal tubulointerstitial fibrosis in the UUO model via counteracting the NLRP3/caspase-1/IL-1β pathway.
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Affiliation(s)
- Ruochen Qi
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Shanghai Medical College, Fudan University, Shanghai 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai 200032, China
| | - Weitao Zhang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Shanghai Medical College, Fudan University, Shanghai 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai 200032, China
| | - Long Zheng
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Shanghai Medical College, Fudan University, Shanghai 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai 200032, China
| | - Ming Xu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai 200032, China
| | - Ruiming Rong
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai 200032, China.,Department of Transfusion, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Tongyu Zhu
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai 200032, China
| | - Cheng Yang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.,Shanghai Key Laboratory of Organ Transplantation, Shanghai 200032, China
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Li R, Shang Y, Hu X, Yu Y, Zhou T, Xiong W, Zou X. ATP/P2X7r axis mediates the pathological process of allergic asthma by inducing M2 polarization of alveolar macrophages. Exp Cell Res 2019; 386:111708. [PMID: 31682811 DOI: 10.1016/j.yexcr.2019.111708] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 10/30/2019] [Indexed: 12/20/2022]
Abstract
Recent studies revealed that macrophages are polarized towards the M2 phenotype in an ovalbumin (OVA)-induced asthmatic model. Alveolar macrophages (AMs) are immune barriers in alveoli to various pathogens in the respiratory tract; AMs suppress Th2 cell proliferation, inhibit interleukin (IL)-4, IL-5, and IL-13 secretion, and protect against airway hyperresponsiveness in allergic asthma. However, the polarization status and effects of different types of AMs in the pathogenesis of asthma are not known. ATP/P2X7r, expressed mainly on macrophages and dendritic cells, is associated with acute and chronic asthmatic airway inflammation and Th2 immune responses in mice and humans and functions by activating the NLRP3 inflammasome complex and inducing proinflammatory cytokine release (IL-1β and IL-18). Therefore, we evaluated the association between the ATP/P2X7r axis and different types of AMs in the pathology of allergic asthma. A murine AM-depleted asthma model was established by administration of clodronate-encapsulated liposomes, and M1-or M2-AMs were adoptively transferred to confirm the effects of different AMs in allergic asthma. Brilliant Blue G and BzATP were administered to OVA/HDM-induced mice in vivo. Lipopolysaccharide + OVA, ATP, Brilliant Blue G, and BzATP were used to stimulate AMs isolated from control and asthmatic mice. We found that selective depletion of AMs aggravated lung inflammation in asthmatic mice. Further, M2-type AMs may play a key role in mediating asthmatic inflammatory responses via the adoptive transfer of M2-type AMs to AM-depleted asthmatic mice, and the phenotype of AMs differentiated to M2 type in asthma. P2X7r expression in M2-type AMs was higher than that in M1-type AMs. Activating P2X7r induced polarization of M2-type AMs and inhibited polarization of M1-type AMs, while blockage of P2X7r had the opposite effect. The ATP/P2X7r axis may participate in the pathogenesis of asthma by mediating the M2-type AM polarization.
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Affiliation(s)
- Ruiting Li
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - You Shang
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Xuemei Hu
- Department of Nephrology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, PR China
| | - Yuan Yu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Ting Zhou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Wei Xiong
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China
| | - Xiaojing Zou
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, PR China.
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Alnus Sibirica Extracts Suppress the Expression of Inflammatory Cytokines Induced by Lipopolysaccharides, Tumor Necrosis Factor-α, and Interferon-γ in Human Dermal Fibroblasts. Molecules 2019; 24:molecules24162883. [PMID: 31398908 PMCID: PMC6720580 DOI: 10.3390/molecules24162883] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 11/16/2022] Open
Abstract
The effects of Alnus sibirica (AS) extracts on cytokine expression induced by inflammatory stimulants were examined in human dermal fibroblasts (HDFs) and RAW264.7 cells. The anti-oxidative effect and effect on cell viability of AS extracts were evaluated, and four extracts with the highest anti-oxidative effects were selected. HDFs and RAW264.7 cells were treated with inflammatory stimulants, and the expression of cytokines involved in acute (IL-6 and IL-10) and chronic (IL-18) inflammation, the initiation of the immune response (IL-33), and non-specific immune responses (IL-1β, IL-8, and TNF-α) were determined using a reverse-transcription polymerase chain reaction. LPS increased the expression of all the cytokines, except for IL-18; however, AS extracts, particularly AS2 and AS4, reduced this increase, and TNF-α treatment markedly increased the expression of cytokines related to non-specific immune responses. IFN-γ treatment induced no significant changes, except for increased IL-33 expression in HDFs. AS extracts inhibited the increase in the expression of IL-33 and other cytokines in HDFs. Thus, the exposure of HDFs and RAW264.7 cells to inflammatory stimulants increased the expression of cytokines related to all the inflammatory processes. HDFs are involved not only in simple tissue regeneration but also in inflammatory reactions in the skin. AS2 and AS4 may offer effective therapy for related conditions.
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Protective effect of Ketone musk on LPS/ATP-induced pyroptosis in J774A.1 cells through suppressing NLRP3/GSDMD pathway. Int Immunopharmacol 2019; 71:328-335. [PMID: 30952097 DOI: 10.1016/j.intimp.2019.03.054] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/17/2019] [Accepted: 03/26/2019] [Indexed: 02/07/2023]
Abstract
Pyroptosis is a different type of proinflammatory and lytic mode of cell death from apoptosis and necrosis, which play a killer and cleaner to the pathogenic microorganisms as an immune response when the host is infected by pathogenic microorganisms. Ketone musk (KM) is a component of the native musk, which is widely used to medicine and chemical engineering. In this research, we studied whether KM can suppress the pyroptosis in J774A.1 cells induced by lipopoysaccharide (LPS)/Adenosine Triphosphate (ATP) stimulation. The results showed that KM increased the viability of LPS/ATP-stimulated cells, decreased the production of interleukin (IL)-1β/18, and suppressed the activation of caspased-1 and NOD-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome and gasdermin D (GSDMD). Our present study demonstrated that KM inhibited LPS/ATP-induced pyroptosis and the release of IL-1β/18 in J774A.1 cells by inhibiting the activation of GSDMD and caspase-1 and the assembly of NLRP3 inflammasome. Our finding may be of significance on investigating that KM has a positive potential application in the treatment of pyroptosis-mediated diseases.
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Wang C, Song Y, Wang X, Mao R, Song L. Baicalin Ameliorates Collagen-Induced Arthritis Through the Suppression of Janus Kinase 1 (JAK1)/Signal Transducer and Activator of Transcription 3 (STAT3) Signaling in Mice. Med Sci Monit 2018; 24:9213-9222. [PMID: 30562763 PMCID: PMC6322370 DOI: 10.12659/msm.910347] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background Rheumatoid arthritis is an autoimmune disease that causes chronic joint inflammation and there is no cure. Baicalin, as an ingredient in the roots of Scutellaria baicalensis, is supposed to possess an anti-inflammatory effect. However, the protective effect of baicalin on collagen-induced arthritis requires further investigation. Material/Methods A model of rheumatoid arthritis was established in 20 mice (8- to 10-weeks old). The mice were randomly divided into 2 groups after modeling and then injected with saline or baicalin, respectively. The synovial fluids and tissues were collected, and the pressure pain threshold and clinical arthritis score were measured. The levels of tumor necrosis factor (TNF)-α, interlukin-1β (IL-1β), IL-6, matrix metalloproteinases (MMP)-2, MMP-9, nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and their downstream inflammatory mediators Janus kinase 1 (JAK1)/signal transducer and activator of transcription 3 (STAT3), extracellular signal-regulated kinases 1/2 (ERK1/2), p38, Jun N-terminal kinases (JNK) activation were detected using enzyme-linked immunosorbent assay (ELISA), and western blotting analyses. The mononuclear cells apoptosis ratio was calculated by flowcytometry analyses. Results Baicalin significantly reduced disease activities in a rheumatoid arthritis mouse model, which were reflected by pressure pain thresholds and clinical arthritis scores. Relevant proinflammatory cytokines such as TNF-α, IL-1β, IL-6, gelatinases (MMP-2, MMP-9) and inducible enzymes (iNOS, COX-2) were generally suppressed. Moreover, baicalin treatment induced cells apoptosis in synovial fluid monocytes and markedly down regulated JAK1/STAT3 but not mitogen-activated protein kinases (MAPKs) expressions in synovium of arthritis. Conclusions These observations confirm the relief of rheumatoid arthritis by baicalin. Our results indicate the effect is related with the modulation of decreased proinflammatory cytokines and inflammatory markers. And the apoptosis promotion of monocytes in synovial fluid were also inhibited. Moreover, the molecular mechanism implies suppressed JAK1/STAT3 signaling with baicalin treatment.
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Affiliation(s)
- Chunxiao Wang
- Department of Rheumatology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China (mainland).,Department of Joint Surgery, Shandong General Team Hospital of Chinese People's Armed Police Force, Ji'nan, Shandong, China (mainland)
| | - Yong Song
- Department of Blood Purification, People's Hospital of Binhai Economic and Technological Development Zone, Weifang, Shandong, China (mainland)
| | - Xin Wang
- Department of Blood Purification, People's Hospital of Binhai Economic and Technological Development Zone, Weifang, Shandong, China (mainland)
| | - Ruijun Mao
- Department of Joint Surgery, Shandong General Team Hospital of Chinese People's Armed Police Force, Ji'nan, Shandong, China (mainland)
| | - Lijun Song
- Department of Rheumatology, Qilu Hospital of Shandong University, Ji'nan, Shandong, China (mainland)
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Qu S, Shen Y, Wang M, Wang X, Yang Y. Suppression of miR-21 and miR-155 of macrophage by cinnamaldehyde ameliorates ulcerative colitis. Int Immunopharmacol 2018; 67:22-34. [PMID: 30530166 DOI: 10.1016/j.intimp.2018.11.045] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/07/2018] [Accepted: 11/27/2018] [Indexed: 02/07/2023]
Abstract
Ulcerative colitis (UC) is a major form of inflammatory bowel disease which involved mucosal immune dysfunction. Cinnamaldehyde (CA) is major active compound from cinnamon, a useful traditional medicine in Asia which shows superior antibacterial and anti-inflammatory activity. In this study, we investigated the effects of CA on UC both in vivo and in vitro. We showed that CA attenuated the symptoms of DSS-induced colitis, including loss of body weights, disease activity index (DAI), shortening of the colon lengths and infiltration of inflammatory cells. Moreover, CA decreased the pro-inflammatory cytokines and NLRP3 inflammasome, miR-21 and miR-155 in colon tissues, in addition, the percentage of macrophages was reduced based on the surface marker F4/80 and IL-10 secretion in CA-treated group, suggesting that the CA ameliorate the UC via activation of macrophage. Herein, the effects of CA on macrophage cells were examined in vitro. We found that CA reduced the level of proinflammatory cytokines, such as TNF-α, IL-1β, IL-6, in the activation of RAW264.7, human macrophage-like cells U937, and primary peritoneal macrophages. Furthermore, the suppression of NLRP3 inflammasome, miR-21 and miR-155 was also found in CA-treated LPS-stimulated RAW264.7 cells. CA also reduced the production of reactive oxygen species, the phosphorylation of AKT, mTOR and COX2 protein level in the RAW264.7. Meanwhile, data revealed that transferred miR-21 or miR-155 inhibitor suppressed levels of IL-1β and IL-6, whereas miR-21 or miR-155 mimics increased expressions of these, and CA suppressed these expressions. Our results indicate that CA could ameliorate DSS-induced colitis through inhibition of NLRP3 inflammasome activation and miR-21 and miR-155 levels in colons and macrophage, suggesting that CA might be a potentially effective drug for UC.
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Affiliation(s)
- Shulan Qu
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yunhui Shen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Mengjie Wang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiaoyu Wang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Yifu Yang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Yue LM, Gao YM, Han BH. Evaluation on the effect of hydrogen sulfide on the NLRP3 signaling pathway and its involvement in the pathogenesis of atherosclerosis. J Cell Biochem 2018; 120:481-492. [PMID: 30246263 DOI: 10.1002/jcb.27404] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 07/11/2018] [Indexed: 01/02/2023]
Abstract
BACKGROUND As a common disease, the incidence of atherosclerosis (AS) in the world is high. Therefore, we aimed to evaluate the involvement of hydrogen sulfide (H 2 S)/cystathionine γ-lyase (CSE) in the pathogenesis of AS as well as their possible signaling pathways. METHODS Enzyme-linked immunosorbent assay, real-time polymerase chain reaction, and Western blot analysis were used to detect the effect of CSE on the expression of inflammatory cytokines, ie, H 2 S, thioredoxin-interacting protein (TXNIP), NLRP3, apoptosis-associated speck-like protein (ASC), caspase-1, and interleukin (IL)-1β. In addition, immunohistochemistry and Western blot analysis were performed to detect the levels of TXNIP, NLRP3, ASC, caspase-1, IL-1β, and IL-18 among different groups. RESULT Knockdown of CSE by the transfection of CSE small interfering RNA upregulated the levels of two inflammatory cytokines, ie, IL-1β and IL-18. In addition, the downregulation of CSE promoted the expression of TXNIP, NLRP3, ASC, caspase-1, and IL-1β in THP-1 cells. Meanwhile, treating the cells with sodium hydrosulfide (NaHS) inhibited the productions of IL-1β and IL-18. Furthermore, upregulation of H 2 S synthesis by treating the cells with NaHS also reduced the protein levels of TXNIP, NLRP3, ASC, caspase-1, and IL-1β. Finally, the protein levels of TXNIP and NLRP3 in the AS group were much higher than those in the AS + H 2 S group, which in turn was higher than the sham group. In addition, the AS group displayed the highest protein levels of TXNIP, NLRP3, ASC, caspase-1, IL-1β, and IL-18, while the levels of these proteins in the AS + H 2 S group were higher than those in the sham group. CONCLUSION In summary, the present finding suggested a possible linkage between H 2 S metabolism and AS through the H 2 S/CSE-TXNIP-NLRP3-IL-18/IL-1β-nitric oxide (NO) signaling pathway.
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Affiliation(s)
- Li-Ming Yue
- Department of Emergency, Affiliated Hospital of Shaanxi University of Traditional Chinese Medicine, Xianyang, China
| | - Ya-Mei Gao
- Department of Cardiology, Weinan Center Hospital, Weinan, China
| | - Bao-Hua Han
- Department of Cardiology, The Second Affiliated Hospital of Shaanxi University of Traditional Chinese Medicine, Xianyang, China
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Loss H, Aschenbach JR, Ebner F, Tedin K, Lodemann U. Effects of a pathogenic ETEC strain and a probiotic Enterococcus faecium strain on the inflammasome response in porcine dendritic cells. Vet Immunol Immunopathol 2018; 203:78-87. [DOI: 10.1016/j.vetimm.2018.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 07/18/2018] [Accepted: 08/12/2018] [Indexed: 01/27/2023]
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Liao W, He X, Yi Z, Xiang W, Ding Y. Chelidonine suppresses LPS-Induced production of inflammatory mediators through the inhibitory of the TLR4/NF-κB signaling pathway in RAW264.7 macrophages. Biomed Pharmacother 2018; 107:1151-1159. [PMID: 30257328 DOI: 10.1016/j.biopha.2018.08.094] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 08/07/2018] [Accepted: 08/17/2018] [Indexed: 12/19/2022] Open
Abstract
Chelidonine is one of the alkaloids of Chelidonium majus, which has broad pharmacological activities, including anti-inflammatory. Despite chelidonine has been shown to exhibit anti-inflammatory activity, the molecular mechanisms are not yet fully elucidated. In this paper, we used RAW264.7 macrophages and mice to investigate the anti-inflammatory effects of chelidonine. Firstly, we found that chelidonine significantly suppressed LPS-induced the production of NO and PGE2, as well as iNOS and COX-2 mRNA and protein expression. In addition, pro-inflammatory cytokines induced by LPS, such as TNFα and IL-6 were also attenuated by chelidonine. What's more, LPS-induced activation and degradation of IκBα followed by translocation of the p65 from the cytoplasm to the nucleus were attenuated by chelidonine. Furthermore, chelidonine even significantly inhibited TLR4 expression induced by LPS. Finally, we verified that chelidonine striking ly decreased serum TNFα, IL-6 and PGE2 levels in LPS stimulated mice. Taken together, this study demonstrated that chelidonine may suppressed the LPS-induced inflammatory response both in vitro and in vivo, which was relating to TLR4/NF-κB signaling pathway disturbed by chelidonine.
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Affiliation(s)
- Wang Liao
- Department of Cardiology, Hainan General Hospital, Haikou 570102, China
| | - Xiaojie He
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Cal South University, Changsha 410000, China
| | - Zhuwen Yi
- Department of Nephropathy, Children's Medical Center, The Second Xiangya Hospital, Cal South University, Changsha 410000, China
| | - Wei Xiang
- Department of Pediatrics, Maternal and Child Health Care Hospital of Hainan Province, 15 LongKun-Nan Road, Haikou 570206, China.
| | - Yan Ding
- Department of Dermatology, Hainan Provincial Hospital of Skin Disease, 49 LongKun-Nan Road, Haikou 570206, China.
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Wu XT, Yang Z, Ansari AR, Xiao K, Pang XX, Luo Y, Song H. Visfatin regulates the production of lipopolysaccharide-induced inflammatory cytokines through p38 signaling in murine macrophages. Microb Pathog 2018; 117:55-59. [DOI: 10.1016/j.micpath.2018.02.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 01/02/2018] [Accepted: 02/01/2018] [Indexed: 12/16/2022]
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Hassan N, Ali A, Withycombe C, Ahluwalia M, Al-Nasseri RH, Tonks A, Morris K. TET-2 up-regulation is associated with the anti-inflammatory action of Vicenin-2. Cytokine 2018; 108:37-42. [PMID: 29567563 DOI: 10.1016/j.cyto.2018.03.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 12/13/2017] [Accepted: 03/14/2018] [Indexed: 01/22/2023]
Abstract
Vicenin-2, a C-glycoside flavone that is present in many plant sources, exerts potent anti-inflammatory effects in a number of cell and animal models of inflammation. Ten-eleven translocation (TET)-2 has recently gained considerable attention due to the role it plays in regulating the inflammasome. We studied the ability of Vicenin-2 (V-2) to regulate a range of lipopolysaccharide (LPS) stimulated inflammatory activities in PMA-differentiated THP-1 cells and human primary mononuclear cells. We also investigated the action of V-2 on the secretion of NLRP3 inflammasome regulated cytokines (IL-1β and IL-18) by ELISA, and determined if V-2 can regulate the expression of NLRP3, IL-10, IL-1Ra and TET-2. The effect of V-2 on NF-κB signalling was investigated by fluorescence microscopy and gene reporter assay. Additionally, the effect of V-2 on LPS-induced phosphorylation of IKB-α was also investigated by Western blot analysis. V-2 down-regulated LPS-induced secretion of proinflammatory cytokines (TNF-α and IL-1β), in both THP-1 and primary mononuclear cells. V-2 also decreased the LPS-stimulated secretion of IL-18 in THP-1 cells. V-2 significantly down-regulated TNF-α induced NF-κB reporter activity in HEK293T transfected cells and attenuated IKB-α phosphorylation in THP-1 cells. V-2 treatment also induced enhanced nuclear staining of the p50 subunit and reduced p65 subunit of NF-κB. V-2 treatment alone increased the expression of anti-inflammatory cytokine, IL-10, and the regulator of the inflammasome; IL-1Ra, in the presence of LPS. V-2 also significantly decreased LPS-induced NLRP3 expression while concomitantly increasing TET-2 expression. This study demonstrates that the anti-inflammatory actions of V-2 are associated not only with increased IL-10 and IL-1Ra expression, but also with TET-2 up-regulation. Further work is required to establish if the effects of V-2 can be definitively linked to TET-2 activity and that these actions are mirrored in a range of relevant cell types.
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Affiliation(s)
- Nurudeen Hassan
- Cardiff School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK.
| | - Ahmed Ali
- Cardiff School of Biosciences, Cardiff University, Museum Avenue, CF10 3AX, UK
| | - Cathryn Withycombe
- Cardiff School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
| | - Maninder Ahluwalia
- Cardiff School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
| | - Raya Hamdan Al-Nasseri
- Cardiff School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
| | - Alex Tonks
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Heath Park, CF14 4XN, UK
| | - Keith Morris
- Cardiff School of Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
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Li R, Wang J, Li R, Zhu F, Xu W, Zha G, He G, Cao H, Wang Y, Yang J. ATP/P2X7-NLRP3 axis of dendritic cells participates in the regulation of airway inflammation and hyper-responsiveness in asthma by mediating HMGB1 expression and secretion. Exp Cell Res 2018; 366:1-15. [PMID: 29545090 DOI: 10.1016/j.yexcr.2018.03.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 02/18/2018] [Accepted: 03/03/2018] [Indexed: 12/19/2022]
Abstract
The ATP/P2X7 axis of dendritic cells (DCs) mediates the activation of NLRP3 inflammasome and promotes secretion of interleukin (IL)-1β and IL-18 to induce T helper (Th) 2, Th17 differentiation in the pathogenesis of asthma. NLRP3 inflammasome also regulates high mobility protein 1 (HMGB1) release in DCs. Recent studies demonstrated the correlation between HMGB1 expression and airway inflammation and hyper-responsiveness (AHR) in asthma. However, the relationship between the ATP/P2X7-NLRP3 axis and HMGB1 in DCs in asthma is still unclear. ATP, apyrase, Brilliant Blue G, BzATP, glibenclamide, and Z-YVAD-FMK were administered to ovalbumin (OVA)-induced murine asthmatic model. For in vitro studies, bone marrow-derived mononuclear cells (BMDCs) were primed with LPS and stimulated with the same reagents. Activation of the ATP/P2X7 axis aggravated airway inflammation and AHR in the lung and induced Th2, Th17 polarization in asthmatic mice. Inhibition of NLRP3 inflammasome weakened cardinal features of asthma and blocked Th2, Th17 polarization. In vitro and vivo, ATP/P2X7 axis activated NLRP3 inflammasome and induced HMGB1 expression and release from DCs. Inhibition of NLRP3 inflammasome reduced HMGB1 expression and release. The ATP/P2X7-NLRP3 axis of DCs participates in mediating airway inflammation, AHR, and promoting Th2, Th17 inflammatory responses in asthmatic mice by inducing HMGB1 expression and secretion.
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Affiliation(s)
- Ruiting Li
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei 430071, PR China
| | - Jing Wang
- Department of Intensive Care Unit, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, PR China
| | - Ruifang Li
- Department of Neurology, Hubei third people's Hospital, Wuhan, Hubei 430033, PR China
| | - Fangfang Zhu
- Department of Intensive Care Unit, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, PR China
| | - Wenjuan Xu
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei 430071, PR China
| | - Gan Zha
- Department of Respiratory Medicine, People's Hospital of Wuhan University, Wuhan, Hubei 430060, PR China
| | - Guangzhen He
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei 430071, PR China
| | - Huan Cao
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei 430071, PR China
| | - Yimin Wang
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei 430071, PR China
| | - Jiong Yang
- Department of Respiratory Medicine, Zhongnan Hospital of Wuhan University, 169 Donghu Road, Wuhan, Hubei 430071, PR China.
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Li X, Zhang Y, Jin Q, Xia KL, Jiang M, Cui BW, Wu YL, Song SZ, Lian LH, Nan JX. Liver kinase B1/AMP-activated protein kinase-mediated regulation by gentiopicroside ameliorates P2X7 receptor-dependent alcoholic hepatosteatosis. Br J Pharmacol 2018; 175:1451-1470. [PMID: 29338075 DOI: 10.1111/bph.14145] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Regulating P2X7 receptor-mediated activation of NLRP3 inflammasomes could be a therapeutic strategy to treat alcoholic hepatosteatosis. We investigated whether this process was modulated by gentiopicroside, the main active secoiridoid glycoside from Gentiana manshurica Kitagawa. EXPERIMENTAL APPROACH In vivo models of acute and chronic alcoholic hepatosteatosis were established by intragastrically administered ethanol or using chronic plus binge ethanol feeding of Lieber-DeCarli liquid diet to male C57BL/6 mice. In vitro, HepG2 cells were treated with ethanol. RAW 264.7 macrophages and murine bone marrow-derived macrophages (BMDMs) were stimulated with LPS and ATP. KEY RESULTS In both the acute and chronic alcohol-induced mouse hepatosteatosis models, gentiopicroside decreased serum aminotransferases and triglyceride accumulation. Up-regulated SREBP1, down-regulated PPARα and phosphorylated acetyl-CoA carboxylase caused by acute and chronic alcohol feeding were modulated by gentiopicroside, through the elevation of LKB1 and AMPK. Suppression of P2X7 receptor-NLRP3 activation by gentiopicroside inhibited IL-1β production. In ethanol-exposed HepG2 cells, gentiopicroside reduced lipogenesis and promoted lipid oxidation via activation of P2X7 receptor-NLRP3 inflammasomes. Genetic or pharmacological blockade of P2X7 receptors enhanced AMPK activity and reduced SREBP1 expression in ethanol-treated HepG2 cells. Gentiopicroside down-regulated P2X7 receptor-mediated inflammatory responses in LPS/ATP-stimulated RAW 264.7 macrophages and BMDMs. IL-1β from macrophages accelerated lipid accumulation in hepatocytes. Depleting macrophages by clodronate liposomes ameliorated alcoholic hepatosteatosis, and it was further alleviated by gentiopicroside. CONCLUSIONS AND IMPLICATIONS Activation of LKB1/AMPK signalling by gentiopicroside was mediated by the P2X7 receptor-NLRP3 inflammasome, suggesting the therapeutic value of blocking P2X7 receptors in the treatment of alcoholic hepatosteatosis.
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Affiliation(s)
- Xia Li
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Yu Zhang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Quan Jin
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Kai-Li Xia
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Min Jiang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Ben-Wen Cui
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Yan-Ling Wu
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Shun-Zong Song
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Li-Hua Lian
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Ji-Xing Nan
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China.,Clinical Research Center, Yanbian University Hospital, Yanji, Jilin Province, 133002, China
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Cui F, Zhu P, Ji J, Blaženović I, Gholami M, Zhang Y, Sun X. Gas chromatography-mass spectrometry metabolomic study of lipopolysaccharides toxicity on rat basophilic leukemia cells. Chem Biol Interact 2017; 281:81-88. [PMID: 29275087 DOI: 10.1016/j.cbi.2017.12.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/19/2017] [Accepted: 12/01/2017] [Indexed: 02/08/2023]
Abstract
Lipopolysaccharide (LPS) can lead to uncontrollable cytokine production, fatal sepsis syndrome and depression/multiple organ failure, as pathophysiologic demonstration. Various toxic effects of LPS have been extensively reported, mainly on the toxicity of LPS in cellular level, macrophages or tumor cells, etc. This work aimed on the impact of LPS on mast cell metabolism, which focused on LPS-induced cellular metabolic profiles. Gas chromatography-mass spectrometry (GC-MS) based metabolomics strategy was implemented for the endo-metabolites detection in rat basophilic leukemia (RBL-2H3) cells, treated with 10 μg/mL LPS for 24 h, along with multiple time-dose tests of cells viability/apoptosis. Significantly changes metabolites were mainly involved the metabolism of glycine, serine, threonine and the biosynthesis of phenylalanine, tyrosine, tryptophan and pentose phosphate pathway. The endo-metabolism results illustrated that LPS treatment led to downregulation of glycine, serine and threonine metabolism besides pentose phosphate pathway in RBL-2H3 cells. This novel insight into LPS cellular metabolism, provides some heuristic guidance for elucidating the underlying mechanism of LPS-mediated disease.
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Affiliation(s)
- Fangchao Cui
- School of Food Science, State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Pei Zhu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China
| | - Jian Ji
- School of Food Science, State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
| | | | - Morteza Gholami
- Department of Chemistry, Faculty of Sciences, Golestan University, Gorgan, Iran
| | - Yinzhi Zhang
- School of Food Science, State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiulan Sun
- School of Food Science, State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China.
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50
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Wang J, Cheng W, Wang Z, Xin L, Zhang W. ATF3 inhibits the inflammation induced by Mycoplasma pneumonia in vitro and in vivo. Pediatr Pulmonol 2017; 52:1163-1170. [PMID: 28440917 DOI: 10.1002/ppul.23705] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 03/22/2017] [Indexed: 01/29/2023]
Abstract
OBJECTIVES Activating transcription factor-3 (ATF3) is a key regulator of inflammatory responses. We aimed to investigate the effects and mechanisms of ATF3 on the inflammatory cytokines are induced by Mycoplasma pneumonia (MP). STUDY DESIGN RAW264.7 and mouse peritoneal macrophages were exposed to various time with or without MP infection (3, 6, 12, 24, and 48 h), and detect the expression of ATF3. Adenovirus-expression of ATF3 (Ad/ATF3) or Ad/βgal was transfected into cells which were exposed to MP for 48 h, RT-PCR and ELISA was used to evaluate the expression and secretion of TNF-α, IL-1β, IL-6, and IL-18. In addition, intravenous administration Ad/ATF3 or Ad/βgal into the mice, the secretion of inflammatory cytokines were detected using ELISA. ChIP assay was used to determine whether ATF3 can bind to the promoter of Early growth response protein 1 (Egr-1). Western blot was used to detect the expression of Egr-1 and Fyn. RESULTS ATF3 was increased at 3, 6, 12, and 24 h and the highest expression levels occurs in 6 h, there is no significant differences at 24 and 48 h compared with 0 h or CON group in RAW 264.7. Similar results were seen in mouse peritoneal macrophages. Overexpression of ATF3 resulted in the reduction of inflammatory cytokines. ChIP assay revealed that ATF3 can bind to the promoter of Egr-1. Overexpression of ATF3 inhibited the protein expression of Egr-1 and Fyn; conversely, ATF3-deficiency promoted the expression of Egr-1 and Fyn. Overexpression of Egr-1 reduced the anti-inflammatory action of ATF3. CONCLUSIONS ATF3 inhibit the expression and release of TNF-α, IL-1β, IL-6, and IL-18 induced by MP in vitro and in vivo, which is associated with its negative regulation of Egr-1/Fyn signaling pathway.
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Affiliation(s)
- Jing Wang
- The Second Department of Respiration, Xi'an Children's Hospital, Xi'an, P. R. China
| | - Wei Cheng
- The Second Department of Respiration, Xi'an Children's Hospital, Xi'an, P. R. China
| | - Zhen Wang
- The Second Department of Respiration, Xi'an Children's Hospital, Xi'an, P. R. China
| | - Lihong Xin
- The Second Department of Respiration, Xi'an Children's Hospital, Xi'an, P. R. China
| | - Wen Zhang
- The Second Department of Respiration, Xi'an Children's Hospital, Xi'an, P. R. China
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