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Li Y, Zhuang Y, Chen Y, Wang G, Tang Z, Zhong Y, Zhang Y, Wu L, Ji X, Zhang Q, Pan B, Luo Y. Euphorbia factor L2 alleviated gouty inflammation by specifically suppressing both the priming and activation of NLRP3 inflammasome. Int Immunopharmacol 2024; 138:112598. [PMID: 38981223 DOI: 10.1016/j.intimp.2024.112598] [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: 03/20/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024]
Abstract
Euphorbia L. is a traditionally used herb and contains many newly identified compounds with novel chemical structures. Euphorbia factor L2 (EFL2), a diterpenoid derived from Euphorbia seeds, is reported to alleviate acute lung injury and arthritis by exerting anti-inflammatory effects. In this study, we aimed to test the therapeutic benefit and mechanisms of EFL2 in NLRP3 inflammasome-mediated gouty models and identified the potential molecular mechanism. A cell-based system was used to test the specific inhibitory effect of EFL2 on NLRP3-related inflammation. The gouty arthritis model and an air pouch inflammation model induced by monosodium urate monohydrate (MSU) crystals were used for in vivo experiments. Nlrp3-/- mice and in vitro studies were used for mechanistic exploration. Virtual molecular docking and biophysical assays were performed to identify the direct binding and regulatory target of EFL2. The inhibitory effect of EFL2 on inflammatory cell infiltration was determined by flow cytometry in vivo. The mechanism by which EFL2 activates the NLRP3 inflammasome signaling pathway was evaluated by immunological experiment and transmission electron microscopy. In vitro, EFL2 specifically reduced NLRP3 inflammasome-mediated IL-1β production and alleviated MSU crystal-induced arthritis, as well as inflammatory cell infiltration. EFL2 downregulated NF-κB phosphorylation and NLRP3 inflammasome expression by binding to glucocorticoid receptors. Moreover, EFL2 could specifically suppress the lysosome damage-mediated NLRP3 inflammasome activation process. It is expected that this work may be useful to accelerate the development of anti-inflammatory drugs originated from traditional herbs and improve therapeutics in gout and its complications.
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Affiliation(s)
- Yanhong Li
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuqing Zhuang
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuehong Chen
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Guan Wang
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, Chengdu 6a004a, Sichuan, China
| | - Zhigang Tang
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yutong Zhong
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuanyuan Zhang
- Sichuan Institute of Food Inspection, Chengdu, Sichuan, China
| | - Liang Wu
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xing Ji
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qiuping Zhang
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bin Pan
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Shouguang 262700, Shandong, China
| | - Yubin Luo
- Department of Rheumatology & Immunology, Laboratory of Rheumatology & Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Lin S, Hu X, Li Y, Huang J, Zhang R, Bai X, Weng S, Chen M. Stefin B alleviates the gouty arthritis in mice by inducing the M2 polarization of macrophages. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:5677-5688. [PMID: 38294507 PMCID: PMC11329408 DOI: 10.1007/s00210-023-02911-w] [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: 07/02/2023] [Accepted: 12/14/2023] [Indexed: 02/01/2024]
Abstract
The present study aims to explore the therapeutic effect of Stefin B on gouty arthritis (GA) and the polarization of macrophages in mice. Stefin B-overexpressed or knockdown M0 macrophages were constructed. The GA model was established in mice by injecting 25 mg/mL MSU, followed by a single injecting of Stefin B-overexpressing adenovirus vector (GA model + Stefin B OE) or an empty vector (GA model + Stefin B OE NC). Stefin B was found lowly expressed in M1 macrophages. CD206 was markedly upregulated and IL-10 release was signally increased in Stefin B-overexpressed macrophages. In gouty arthritis mice, marked redness and swelling were observed in the ankle joint. Dramatical infiltration of inflammatory cells was observed in the GA model and GA model + Stefin B OE NC groups, which was suppressed in the Stefin B OE group. Increased proportion of F4/80+CD86+ cells observed in GA mice was markedly repressed by Stefin B overexpression, accompanied by the declined level of Caspase-1 and IL-17. Collectively, Stefin B alleviated the GA in mice by inducing the M2 polarization of macrophages.
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Affiliation(s)
- Shishui Lin
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Gulou District, Fuzhou City, Fujian Province, 350001, People's Republic of China
- Department of Orthopedic Surgery, Shengli Clinical Medical College of Fujian Medical University, No. 134 East Street, Fuzhou City, Fujian Province, 350001, People's Republic of China
| | - Xu Hu
- Department of Orthopedic Surgery, Shengli Clinical Medical College of Fujian Medical University, No. 134 East Street, Fuzhou City, Fujian Province, 350001, People's Republic of China
- Fujian Clinical Research Center for Spinal Nerve and Joint Diseases, No.134 East Street, Fuzhou City, Fujian Province, 350001, People's Republic of China
| | - Yang Li
- Department of Orthopedic Surgery, Shengli Clinical Medical College of Fujian Medical University, No. 134 East Street, Fuzhou City, Fujian Province, 350001, People's Republic of China
- Fujian Clinical Research Center for Spinal Nerve and Joint Diseases, No.134 East Street, Fuzhou City, Fujian Province, 350001, People's Republic of China
| | - Jiyue Huang
- Department of Orthopedics, 900TH Hospital of Joint Logistics Support Force, No. 156 West Second Ring North Road, Gulou District, Fuzhou City, Fujian Province, 350025, People's Republic of China
| | - Rui Zhang
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Gulou District, Fuzhou City, Fujian Province, 350001, People's Republic of China
| | - Xinxin Bai
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Gulou District, Fuzhou City, Fujian Province, 350001, People's Republic of China
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, No 1 North XueFu Road, Fuzhou City, Fujian Province, 350122, People's Republic of China.
| | - Min Chen
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Gulou District, Fuzhou City, Fujian Province, 350001, People's Republic of China.
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Chen G, Shen L, Hu H, Feng Y, Wen D, Liu Y, Zhai H, Sun W, Wang M, Lei X, Li P, Xiong Q, Wu C. Sulforaphane Inhibits Oxidative Stress and May Exert Anti-Pyroptotic Effects by Modulating NRF2/NLRP3 Signaling Pathway in Mycobacterium tuberculosis-Infected Macrophages. Microorganisms 2024; 12:1191. [PMID: 38930573 PMCID: PMC11205970 DOI: 10.3390/microorganisms12061191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Sulforaphane (SFN) is a natural isothiocyanate derived from cruciferous vegetables such as broccoli, Brussels sprouts, and cabbage. SFN plays a crucial role in maintaining redox homeostasis by interacting with the active cysteine residues of Keap1, leading to the dissociation and activation of NRF2 in various diseases. In this study, our objective was to investigate the impact of SFN on oxidative stress and pyroptosis in Mycobacterium tuberculosis (Mtb)-infected macrophages. Our findings demonstrated that Mtb infection significantly increased the production of iNOS and ROS, indicating the induction of oxidative stress in macrophages. However, treatment with SFN effectively suppressed the expression of iNOS and COX-2 and reduced MDA and ROS levels, while enhancing GSH content as well as upregulating NRF2, HO-1, and NQO-1 expression in Mtb-infected RAW264.7 macrophages and primary peritoneal macrophages from WT mice. These results suggest that SFN mitigates oxidative stress by activating the NRF2 signaling pathway in Mtb-infected macrophages. Furthermore, excessive ROS production activates the NLRP3 signaling pathway, thereby promoting pyroptosis onset. Further investigations revealed that SFN effectively suppressed the expression of NLRP3, Caspase-1, and GSDMD, IL-1β, and IL-18 levels, as well as the production of LDH, suggesting that it may exhibit anti-pyroptotic effects through activation of the NRF2 signaling pathway and reductions in ROS production during Mtb infection. Moreover, we observed that SFN also inhibited the expression of NLRP3, ASC, Caspase1, and IL-1β along with LDH production in Mtb-infected primary peritoneal macrophages from NFR2-/- mice. This indicates that SFN can directly suppress NLRP3 activation and possibly inhibit pyroptosis initiation in an NRF2-independent manner. In summary, our findings demonstrate that SFN exerts its inhibitory effects on oxidative stress by activating the NRF2 signaling pathway in Mtb-infected macrophages, while it may simultaneously exert anti-pyroptotic properties through both NRF2-dependent and independent mechanisms targeting the NLRP3 signaling pathway.
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Affiliation(s)
- Guangxin Chen
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Lin Shen
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Hong Hu
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Yazhi Feng
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Da Wen
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Yiyao Liu
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Huizhe Zhai
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Wei Sun
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Meifen Wang
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Xinghua Lei
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Ping Li
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Qiuhong Xiong
- Institutes of Biomedical Sciences, Shanxi University, Taiyuan 030006, China; (L.S.); (H.H.); (Y.F.); (D.W.); (Y.L.); (H.Z.); (W.S.); (M.W.); (X.L.); (P.L.); (Q.X.)
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
| | - Changxin Wu
- Shanxi Provincial Key Laboratory of Medical Molecular Cell Biology, Taiyuan 030006, China
- Shanxi Provincial Key Laboratory for Prevention and Treatment of Major Infectious Diseases, Taiyuan 030006, China
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Habtemariam S. Anti-Inflammatory Therapeutic Mechanisms of Isothiocyanates: Insights from Sulforaphane. Biomedicines 2024; 12:1169. [PMID: 38927376 PMCID: PMC11200786 DOI: 10.3390/biomedicines12061169] [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: 04/23/2024] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
Isothiocyanates (ITCs) belong to a group of natural products that possess a highly reactive electrophilic -N=C=S functional group. They are stored in plants as precursor molecules, glucosinolates, which are processed by the tyrosinase enzyme upon plant tissue damage to release ITCs, along with other products. Isolated from broccoli, sulforaphane is by far the most studied antioxidant ITC, acting primarily through the induction of a transcription factor, the nuclear factor erythroid 2-related factor 2 (Nrf2), which upregulates downstream antioxidant genes/proteins. Paradoxically, sulforaphane, as a pro-oxidant compound, can also increase the levels of reactive oxygen species, a mechanism which is attributed to its anticancer effect. Beyond highlighting the common pro-oxidant and antioxidant effects of sulforaphane, the present paper was designed to assess the diverse anti-inflammatory mechanisms reported to date using a variety of in vitro and in vivo experimental models. Sulforaphane downregulates the expression of pro-inflammatory cytokines, chemokines, adhesion molecules, cycloxyhenase-2, and inducible nitric oxide synthase. The signalling pathways of nuclear factor κB, activator protein 1, sirtuins 1, silent information regulator sirtuin 1 and 3, and microRNAs are among those affected by sulforaphane. These anti-inflammatory actions are sometimes due to direct action via interaction with the sulfhydryl structural moiety of cysteine residues in enzymes/proteins. The following are among the topics discussed in this paper: paradoxical signalling pathways such as the immunosuppressant or immunostimulant mechanisms; crosstalk between the oxidative and inflammatory pathways; and effects dependent on health and disease states.
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Affiliation(s)
- Solomon Habtemariam
- Pharmacognosy Research & Herbal Analysis Services UK, University of Greenwich, Central Avenue, Chatham-Maritime, Kent ME4 4TB, UK
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Yi YS. Roles of the Caspase-11 Non-Canonical Inflammasome in Rheumatic Diseases. Int J Mol Sci 2024; 25:2091. [PMID: 38396768 PMCID: PMC10888639 DOI: 10.3390/ijms25042091] [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: 01/13/2024] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Inflammasomes are intracellular multiprotein complexes that activate inflammatory signaling pathways. Inflammasomes comprise two major classes: canonical inflammasomes, which were discovered first and are activated in response to a variety of pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs), and non-canonical inflammasomes, which were discovered recently and are only activated in response to intracellular lipopolysaccharide (LPS). Although a larger number of studies have successfully demonstrated that canonical inflammasomes, particularly the NLRP3 inflammasome, play roles in various rheumatic diseases, including rheumatoid arthritis (RA), infectious arthritis (IR), gouty arthritis (GA), osteoarthritis (OA), systemic lupus erythematosus (SLE), psoriatic arthritis (PA), ankylosing spondylitis (AS), and Sjögren's syndrome (SjS), the regulatory roles of non-canonical inflammasomes, such as mouse caspase-11 and human caspase-4 non-canonical inflammasomes, in these diseases are still largely unknown. Interestingly, an increasing number of studies have reported possible roles for non-canonical inflammasomes in the pathogenesis of various mouse models of rheumatic disease. This review comprehensively summarizes and discusses recent emerging studies demonstrating the regulatory roles of non-canonical inflammasomes, particularly focusing on the caspase-11 non-canonical inflammasome, in the pathogenesis and progression of various types of rheumatic diseases and provides new insights into strategies for developing potential therapeutics to prevent and treat rheumatic diseases as well as associated diseases by targeting non-canonical inflammasomes.
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Affiliation(s)
- Young-Su Yi
- Department of Life Sciences, Kyonggi University, Suwon 16227, Republic of Korea
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Wang J, Hao P, Sun X, Ward R, Tang T, Chen X, Liu Y, Luo G, Yang Y, Xiang C, An S, Xu TR. New animal model of chronic gout reproduces pathological features of the disease in humans. RMD Open 2023; 9:e003499. [PMID: 37973536 PMCID: PMC10660916 DOI: 10.1136/rmdopen-2023-003499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 10/12/2023] [Indexed: 11/19/2023] Open
Abstract
OBJECTIVES Gout, as the most prevalent form of inflammatory arthritis, necessitates the use of animal models to investigate the molecular mechanisms involved in its development. Therefore, our objective was to develop a novel chronic mouse model of gout that more closely mimics the progression of gout in humans. METHODS A novel chronic mouse model of gout was established by a simple method, which does not require high technical proficiency, predominantly involves daily intraperitoneal injections of potassium oxonate for approximately 4 months, combined with a high fat-diet and injections of acetic acid into the hind paws to facilitate the formation of monosodium urate (MSU). Arthritis scores and paw oedema were assessed, behavioural tests were conducted, and histopathological and imaging evaluations of the arthritic paw joints were performed. RESULTS After 4 months of induction, mice in the model group exhibited noticeable increases in arthritis severity, joint and cartilage damage, as well as bone erosion. Gomori's methenamine silver stain revealed the presence of MSU crystal deposition or tophi in the paw joints or ankle joints of up to 37.9% of the model mice (11 out of 29 mice). Moreover, treatment with benzbromarone effectively prevented the further development of gout or tophi formation in model mice. CONCLUSIONS Our model more accurately replicates the pathological features of gouty arthritis compared with gout induced by MSU crystal injections. Therefore, it is particularly suitable for further investigations into the pathogenesis of gout and also serves as a valuable platform for screening potential antigout agents.
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Affiliation(s)
- Jiwei Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Peiqi Hao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xianrun Sun
- Department of Orthopedic Surgery, Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Richard Ward
- Centre for Translational Pharmacology, Institute of Molecular Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Tao Tang
- Medical School, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xi Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yihong Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Guancong Luo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yang Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Cheng Xiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Su An
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Tian-Rui Xu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
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Treasure K, Harris J, Williamson G. Exploring the anti-inflammatory activity of sulforaphane. Immunol Cell Biol 2023; 101:805-828. [PMID: 37650498 DOI: 10.1111/imcb.12686] [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: 03/20/2023] [Revised: 07/24/2023] [Accepted: 08/10/2023] [Indexed: 09/01/2023]
Abstract
Dysregulation of innate immune responses can result in chronic inflammatory conditions. Glucocorticoids, the current frontline therapy, are effective immunosuppressive drugs but come with a trade-off of cumulative and serious side effects. Therefore, alternative drug options with improved safety profiles are urgently needed. Sulforaphane, a phytochemical derived from plants of the brassica family, is a potent inducer of phase II detoxification enzymes via nuclear factor-erythroid factor 2-related factor 2 (NRF2) signaling. Moreover, a growing body of evidence suggests additional diverse anti-inflammatory properties of sulforaphane through interactions with mediators of key signaling pathways and inflammatory cytokines. Multiple studies support a role for sulforaphane as a negative regulator of nuclear factor kappa-light chain enhancer of activated B cells (NF-κB) activation and subsequent cytokine release, inflammasome activation and direct regulation of the activity of macrophage migration inhibitory factor. Significantly, studies have also highlighted potential steroid-sparing activity for sulforaphane, suggesting that it may have potential as an adjunctive therapy for some inflammatory conditions. This review discusses published research on sulforaphane, including proposed mechanisms of action, and poses questions for future studies that might help progress our understanding of the potential clinical applications of this intriguing molecule.
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Affiliation(s)
- Katie Treasure
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia
- Victorian Heart Hospital, Monash University, Clayton, VIC, Australia
| | - James Harris
- Biomedical Manufacturing, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, VIC, Australia
- Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia
| | - Gary Williamson
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences at Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia
- Victorian Heart Hospital, Monash University, Clayton, VIC, Australia
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Yan F, Zhang H, Yuan X, Wang X, Li M, Fan Y, He Y, Jia Z, Han L, Liu Z. Comparison of the different monosodium urate crystals in the preparation process and pro-inflammation. Adv Rheumatol 2023; 63:39. [PMID: 37553684 DOI: 10.1186/s42358-023-00307-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 05/24/2023] [Indexed: 08/10/2023] Open
Abstract
OBJECTIVES The deposition of monosodium urate (MSU) crystals within synovial joints and tissues is the initiating factor for gout arthritis. Thus, MSU crystals are a vital tool for studying gout's molecular mechanism in animal and cellular models. This study mainly compared the excellence and worseness of MSU crystals prepared by different processes and the degree of inflammation induced by MSU crystals. METHODS MSU crystals were prepared using neutralization, alkali titration, and acid titration methods. The crystals' shape, length, quality, and uniformity were observed by polarized light microscopy and calculated by the software Image J. The foot pad and air pouch models were used to assess the different degrees of inflammation induced by the MSU crystals prepared by the three different methods at different time points. Paw swelling was evaluated by caliper. In air pouch lavage fluid, inflammatory cell recruitment was measured by hemocytometer, and the level of IL-1β, TNF-α, and IL-18 by ELISA. Inflammatory cell infiltration was assayed by immunohistochemistry of air pouch synovial slices. RESULTS For the preparation of MSU crystals with the same uric acid, the quantity acquired by the alkalization method was highest, followed by neutralization, with the acid titration method being the lowest. The crystals prepared by neutralization were the longest. The swelling index of the foot pad induced by MSU crystals prepared by acid titration was significantly lower than that of the other methods at 24 h. The inflammatory cell recruitment and level of IL-1β, TNF-α, and IL-18 in air pouch lavage fluid were lowest in animals with crystals prepared by acid titration. IL-1β secretion induced by MSU crystals prepared by acid titration was significantly lower than that of the other two groups, but there was no significant difference in IL-18 secretion between the three groups in THP-1 macrophages and BMDMs. CONCLUSIONS All three methods can successfully prepare MSU crystals, but the levels of inflammation induced by the crystals prepared by the three methods were not identical. The degree of inflammation induced by MSU crystals prepared by neutralization and alkalization is greater than by acid titration, but the quantity of MSU crystals obtained by the alkalization method is higher and less time-consuming. Apparently, the window of inflammation triggered by acid titration preparation is shorter compared to other forms of crystal preparation. Overall, MSU crystals prepared by the alkaline method should be recommended for studying the molecular mechanisms of gout in animal and cellular models.
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Affiliation(s)
- Fei Yan
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Medical Research Center, the Affiliated Hospital of Qingdao University, the Affiliated Hospital of Qingdao University, Qingdao, China
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Zhang
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Xuan Yuan
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
| | - Xuefeng Wang
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, Qingdao, China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Medical Research Center, the Affiliated Hospital of Qingdao University, the Affiliated Hospital of Qingdao University, Qingdao, China
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Maichao Li
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Medical Research Center, the Affiliated Hospital of Qingdao University, the Affiliated Hospital of Qingdao University, Qingdao, China
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Youlin Fan
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, Qingdao, China
- Institute of Metabolic Diseases, Qingdao University, Qingdao, China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Medical Research Center, the Affiliated Hospital of Qingdao University, the Affiliated Hospital of Qingdao University, Qingdao, China
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, China
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuwei He
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, Qingdao, China
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Medical Research Center, the Affiliated Hospital of Qingdao University, the Affiliated Hospital of Qingdao University, Qingdao, China
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhaotong Jia
- Department of Endocrinology and Metabolism, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lin Han
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, Qingdao, China.
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Medical Research Center, the Affiliated Hospital of Qingdao University, the Affiliated Hospital of Qingdao University, Qingdao, China.
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, China.
- , No. 1677 Wutaishan Road, Qingdao, 266555, China.
| | - Zhen Liu
- Shandong Provincial Key Laboratory of Metabolic Diseases and Qingdao Key Laboratory of Gout, The Affiliated Hospital of Qingdao University, Qingdao, China.
- Shandong Provincial Clinical Research Center for Immune Diseases and Gout, Medical Research Center, the Affiliated Hospital of Qingdao University, the Affiliated Hospital of Qingdao University, Qingdao, China.
- Medical Research Center, the Affiliated Hospital of Qingdao University, Qingdao, China.
- , No. 1677 Wutaishan Road, Qingdao, 266555, China.
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9
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Song J, Wang Z, Chi Y, Zhang Y, Fang C, Shu Y, Cui J, Bai H, Wang J. Anti-gout activity and the interaction mechanisms between Sanghuangporus vaninii active components and xanthine oxidase. Bioorg Chem 2023; 133:106394. [PMID: 36801789 DOI: 10.1016/j.bioorg.2023.106394] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 02/13/2023]
Abstract
Xanthine oxidase (XO) plays a critical role in the progression of gout. We showed in a previous study that Sanghuangporus vaninii (S. vaninii), a perennial, medicinal, and edible fungus traditionally used to treat various symptoms, contains XO inhibitors. In the current study, we isolated an active component of S. vaninii using high performance countercurrent chromatography and identified it as davallialactone using mass spectrometry with 97.726 % purity. A microplate reader showed that davallialactone had mixed inhibition of XO activity with a half-inhibitory concentration value of 90.07 ± 2.12 μM. In addition, the collision between davallialactone and XO led to fluorescence quenching and conformational changes in XO, which were mainly driven by hydrophobicity and hydrogen bonding. Molecular simulations further showed that davallialactone was located at the center of the molybdopterin (Mo-Pt) of XO and interacted with amino acid residues Phe798, Arg912, Met1038, Ala1078, Ala1079, Gln1194, and Gly1260, suggesting that entering the enzyme-catalyzed reaction was unfavorable for the substrate. We also observed face-to-face π-π interactions between the aryl ring of davallialactone and Phe914. Cell biology experiments indicated that davallialactone reduced the expression of the inflammatory factors, tumor necrosis factor alpha and interleukin-1 beta (P < 0.05), can effectively alleviate cellular oxidative stress. This study showed that davallialactone significantly inhibits XO and has the potential to be developed into a novel medicine to prevent hyperuricemia and treat gout.
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Affiliation(s)
- Jiling Song
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Zhanwei Wang
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Yu Chi
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Yong Zhang
- The Central Laboratory, Changchun Normal University, Changchun 130032, China; Nanguan Middle School, Honghua Gang District, Zunyi 563000, China
| | - Chenyi Fang
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Yuting Shu
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Jing Cui
- The Central Laboratory, Changchun Normal University, Changchun 130032, China
| | - Helong Bai
- The College of Chemistry, Changchun Normal University, Changchun 130032, China
| | - Jing Wang
- The College of Chemistry, Changchun Normal University, Changchun 130032, China; The Central Laboratory, Changchun Normal University, Changchun 130032, China.
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10
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Kim SW, Lee JH, Kim H, Lee SH, Jeong D, Kim HS, Lee CJ, Kim DY, Yook TH, Yang G. Improvement Effect of Soyeom Pharmacopuncture on Gout via NLRP3 Inflammasome Regulation. J Pharmacopuncture 2022; 25:396-403. [PMID: 36628347 PMCID: PMC9806156 DOI: 10.3831/kpi.2022.25.4.396] [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: 10/20/2022] [Revised: 10/24/2022] [Accepted: 12/08/2022] [Indexed: 12/30/2022] Open
Abstract
Objectives Gout is an inflammatory arthritis of the joints and soft tissues occurring due to deposition of monosodium urate (MSU) crystals, which are caused by persistent hyperuricemia. Soyeom pharmacopuncture is one treatment method that has been traditionally used for pain management in Oriental medicine. However, studies on its effect in reducing gout pain have been insufficient. Therefore, we selected Soyeom pharmacopuncture among natural products used in Korea as the new target of our study. Methods The effects of Soyeom pharmacopuncture were examined in mouse models of acute gout induced by injection of MSU crystals into footpads. IL-1β, IL-6, and TNF-α production were examined by immunoblotting and enzyme-linked immunosorbent assay as hallmarks of NLRP3 inflammasome and cytokine activation. Results Soyeom pharmacopuncture reduced foot edema in gout-induced mice, as well as IL-1β, nitrite, IL-6, and TNF-α production. Moreover, Soyeom pharmacopuncture also reduced MSU-induced gout inflammatory gene expressions, specifically those in the NF-kB pathway. Conclusion Pharmacopuncture may serve as a new solution for other inflammatory diseases as well. Through active follow-up studies, we could thoroughly understand the clinical value of Soyeom pharmacopuncture.
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Affiliation(s)
- Sung Wook Kim
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Jun Ho Lee
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Hyeonjin Kim
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Seong Hoon Lee
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Dajeong Jeong
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Hyuk Soon Kim
- Department of Biomedical Sciences, College of Natural Science and Department of Health Sciences, The Graduate School of Dong-A University, Busan, Republic of Korea
| | - Cheol-Jung Lee
- Research Center for Materials Analysis, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Dae Yong Kim
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea
| | - Tae Han Yook
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea,Corresponding Author Gabsik Yang, Department of Korean Medicine, College of Korean Medicine, Woosuk University, 61 Seonneomeo 3-gil, Wansan-gu, Jeonju 54986, Republic of Korea, Tel: +82-63-290-9030, E-mail:, Tae Han Yook, Department of Korean Medicine, College of Korean Medicine, Woosuk University, 61 Seonneomeo 3-gil, Wansan-gu, Jeonju 54986, Republic of Korea, Tel: +82-63-220-8625, E-mail:
| | - Gabsik Yang
- Department of Korean Medicine, College of Korean Medicine, Woosuk University, Jeonju, Republic of Korea,Corresponding Author Gabsik Yang, Department of Korean Medicine, College of Korean Medicine, Woosuk University, 61 Seonneomeo 3-gil, Wansan-gu, Jeonju 54986, Republic of Korea, Tel: +82-63-290-9030, E-mail:, Tae Han Yook, Department of Korean Medicine, College of Korean Medicine, Woosuk University, 61 Seonneomeo 3-gil, Wansan-gu, Jeonju 54986, Republic of Korea, Tel: +82-63-220-8625, E-mail:
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11
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Yang G, Kang HC, Cho YY, Lee HS, Lee JY. Inflammasomes and their roles in arthritic disease pathogenesis. Front Mol Biosci 2022; 9:1027917. [PMID: 36387275 PMCID: PMC9650081 DOI: 10.3389/fmolb.2022.1027917] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/17/2022] [Indexed: 11/14/2023] Open
Abstract
The inflammasome is a molecular platform that is created in the cytosolic compartment to mediate the host immunological response to cellular injury and infection. Caspase-1 may be activated by the inflammasome, which leads to the generation of the inflammatory cytokines interleukin-1β (IL-1β) and IL-18 and the beginning of pyroptosis, which is a type of proinflammatory cell death. Scientists have identified a number of different inflammasomes in the last 2 decades. The NLRP3 inflammasome has been studied the most, and its activity may be triggered by a broad range of different inducers. However, activation of the NLRP3 inflammasome in a manner that is not properly controlled is also a factor in the etiology of many human illnesses. Accumulating evidence indicates that the NLRP3 inflammasome plays a significant role in the innate and adaptive immune systems and the development of various arthritic illnesses, such as rheumatoid arthritis, ankylosing spondylitis, and gout. The present review provides a concise summary of the biological properties of the NLRP3 inflammasome and presents the fundamental processes behind its activation and control. We discuss the role of the inflammasome in the pathogenesis of arthritic diseases, such as rheumatoid arthritis, ankylosing spondylitis, and gout, and the potential of newly developed therapies that specifically target the inflammasome or its products for the treatment of inflammatory diseases, with a particular emphasis on treatment and clinical application.
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Affiliation(s)
- Gabsik Yang
- Department of Pharmacology, College of Korean Medicine, Woosuk University, Jeonju, South Korea
| | - Han Chang Kang
- College of Pharmacy, The Catholic University of Korea, Seoul, South Korea
| | - Yong-Yeon Cho
- College of Pharmacy, The Catholic University of Korea, Seoul, South Korea
| | - Hye Suk Lee
- College of Pharmacy, The Catholic University of Korea, Seoul, South Korea
| | - Joo Young Lee
- College of Pharmacy, The Catholic University of Korea, Seoul, South Korea
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12
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Immunomodulatory Effects of (R)-Sulforaphane on LPS-Activated Murine Immune Cells: Molecular Signaling Pathways and Epigenetic Changes in Histone Markers. Pharmaceuticals (Basel) 2022; 15:ph15080966. [PMID: 36015113 PMCID: PMC9414446 DOI: 10.3390/ph15080966] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/22/2022] [Accepted: 08/02/2022] [Indexed: 02/01/2023] Open
Abstract
The aim of this study was to explore the immunomodulatory effects of the natural enantiomer (R)-Sulforaphane (SFN) and the possible signaling pathways involved in an ex vivo model of LPS-stimulated murine peritoneal macrophages. Furthermore, we studied the epigenetic changes induced by (R)-SFN as well as the post-translational modifications of histone H3 (H3K9me3 and H3K18ac) in relation to the production of cytokines in murine splenocytes after LPS stimulation. (R)-SFN was able to modulate the inflammatory response and oxidative stress induced by LPS stimulation in murine peritoneal macrophages through the inhibition of reactive oxygen species (ROS), nitric oxide (NO) and cytokine (IL-1β, IL-6, IL-17, IL-18 and TNF-α) production by down-regulating the expression of pro-inflammatory enzymes (iNOS, COX-2 and mPGES-1). We also found that activation of the Nrf-2/HO-1 axis and inhibition of the JAK2/STAT-3, MAPK, canonical and non-canonical inflammasome signaling pathways could have been responsible for the immunomodulatory effects of (R)-SFN. Furthermore, (R)-SFN modulated epigenetic modifications through histone methylation (H3K9me3) and deacetylation (H3K18ac) in LPS-activated spleen cells. Collectively, our results suggest that (R)-SFN could be a promising epinutraceutical compound for the management of immunoinflammatory diseases.
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Sun H, Wang J, Bi W, Zhang F, Chi K, Shi L, Yuan T, Ma K, Gao X. Sulforaphane Ameliorates Limb Ischemia/Reperfusion-Induced Muscular Injury in Mice by Inhibiting Pyroptosis and Autophagy via the Nrf2-ARE Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:4653864. [PMID: 35600947 PMCID: PMC9117032 DOI: 10.1155/2022/4653864] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022]
Abstract
Background Limb ischemia/reperfusion (I/R) injury, as a life-threatening syndrome, is commonly caused by skeletal muscle damage resulting from oxidative stress. Additionally, inflammation-induced pyroptosis and dysregulated autophagy are vital factors contributing to the aggravation of I/R injury. Of note, sulforaphane (SFN) is a natural antioxidant, but whether it worked in limb I/R injury and the possible mechanism behind its protection for skeletal muscle has not been clearly established. Methods Effects of SFN on limb I/R-injured skeletal muscle were assessed by HE staining, followed by assessment of wet weight/dry weight (W/D) ratio of muscle tissues. Next, ELISA and biochemical tests were used to measure the inflammatory cytokine production and oxidative stress. Immunofluorescent analysis and Western blot were adopted to examine the level of pyroptosis- and autophagy-related proteins in vivo. Moreover, protein levels of Nrf2-ARE pathway-related factors were also examined using Western blot. Results SFN treatment could protect skeletal muscle against limb I/R injury, as evidenced by diminished inflammation, pyroptosis, autophagy, and oxidative stress in skeletal muscles of mice. Further mechanistic exploration confirmed that antioxidative protection of SFN was associated with the Nrf2-ARE pathway activation. Conclusions SFN activates the Nrf2-ARE pathway, and thereby inhibits pyroptosis and autophagy and provides a novel therapeutic strategy for the limb I/R-induced muscle tissue damage.
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Affiliation(s)
- Huanhuan Sun
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Jueqiong Wang
- Department of Neurology, Neurological Laboratory of Hebei Province, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Wei Bi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Feng Zhang
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Kui Chi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Long Shi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Tao Yuan
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Kai Ma
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Xiang Gao
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
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14
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Zhao J, Wei K, Jiang P, Chang C, Xu L, Xu L, Shi Y, Guo S, Xue Y, He D. Inflammatory Response to Regulated Cell Death in Gout and Its Functional Implications. Front Immunol 2022; 13:888306. [PMID: 35464445 PMCID: PMC9020265 DOI: 10.3389/fimmu.2022.888306] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/17/2022] [Indexed: 02/03/2023] Open
Abstract
Gout, a chronic inflammatory arthritis disease, is characterized by hyperuricemia and caused by interactions between genetic, epigenetic, and metabolic factors. Acute gout symptoms are triggered by the inflammatory response to monosodium urate crystals, which is mediated by the innate immune system and immune cells (e.g., macrophages and neutrophils), the NACHT, LRR, and PYD domains-containing protein 3 (NLRP3) inflammasome activation, and pro-inflammatory cytokine (e.g., IL-1β) release. Recent studies have indicated that the multiple programmed cell death pathways involved in the inflammatory response include pyroptosis, NETosis, necroptosis, and apoptosis, which initiate inflammatory reactions. In this review, we explore the correlation and interactions among these factors and their roles in the pathogenesis of gout to provide future research directions and possibilities for identifying potential novel therapeutic targets and enhancing our understanding of gout pathogenesis.
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Affiliation(s)
- Jianan Zhao
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Kai Wei
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Ping Jiang
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Cen Chang
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Lingxia Xu
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Linshuai Xu
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Yiming Shi
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Shicheng Guo
- Computation and Informatics in Biology and Medicine, University of Wisconsin-Madison, Madison, WI, United States.,Department of Medical Genetics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States
| | - Yu Xue
- Department of Rheumatology, Huashan Hospital, Institute of Rheumatology, Immunology and Allergy, Fudan University, Shanghai, China
| | - Dongyi He
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Department of Rheumatology, Shanghai Guanghua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China.,Arthritis Institute of Integrated Traditional and Western Medicine, Shanghai Chinese Medicine Research Institute, Shanghai, China
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15
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Tao H, Zhong J, Mo Y, Liu W, Wang H. Exploring the Mechanism through which Phyllanthus emblica L. Extract Exerts Protective Effects against Acute Gouty Arthritis: A Network Pharmacology Study and Experimental Validation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:9748338. [PMID: 35449811 PMCID: PMC9017503 DOI: 10.1155/2022/9748338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/23/2022] [Accepted: 03/11/2022] [Indexed: 01/05/2023]
Abstract
Increased uric acid levels and inflammatory reactions are the main factors considered responsible for the development of gouty arthritis. Phyllanthus emblica L. (PEL) has several promising pharmacological properties, including anti-inflammation and antioxidation. However, only a few studies have investigated its use for treating acute gouty arthritis (AGA), and the mechanism of action of PEL has not yet been clarified. The aim of this study was to verify the protective effects of PEL against gout and explore its underlying mechanism through network pharmacology and animal experiments. The main active components of the extract from PEL including mucic acid, mucic acid lactone, gallic acid, ethyl hexyl phthalate, and glucose were identified by UPLC-ESI-qTOF-MS. Network pharmacological analysis results revealed 13 active compounds in PEL and 85 related targets for the treatment of gout. The core mechanism of action of PEL is mainly associated with inflammation-related pathways, including the HIF-1, PI3K-Akt, TNF, and NOD-like receptor signaling pathways. Previous studies revealed that the NOD-like receptor signaling pathway, especially the NLRP3 inflammasome, plays an important role in the pathogenesis of AGA; therefore, we mainly investigated the effect of PEL on the NLRP3/ASC/caspase-1 pathway in gout rats. In the animal experiments, PEL was shown to have a satisfactory antigout effect, as it effectively reduced uric acid (UA) and xanthine oxidase (XOD) levels. In terms of inhibiting AGA-associated inflammatory reactions, our results showed that PEL significantly decreased the expression of NLRP3 and caspase-1 in ankle synoviocytes as well as the levels of downstream inflammatory factors, such as TNF-α, IL-10, and IL-1β in serum. Moreover, the results of our study show that PEL reduced MMP13 expression in the ankle synovium. Overall, the results of this study indicate that PEL exerted a therapeutic effect against AGA. Reducing uric acid levels, inhibiting inflammation, and decreasing the expression of MMP13 may be responsible for the therapeutic effect of PEL, which suggests that PEL can be further developed as a drug for the treatment of gout.
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Affiliation(s)
- Haolin Tao
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Jingbin Zhong
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yingshi Mo
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Wenbin Liu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Hui Wang
- College of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
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16
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Lee JH, Kim HS, Lee JH, Yang G, Kim HJ. Natural Products as a Novel Therapeutic Strategy for NLRP3 Inflammasome-Mediated Gout. Front Pharmacol 2022; 13:861399. [PMID: 35370689 PMCID: PMC8967252 DOI: 10.3389/fphar.2022.861399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 02/28/2022] [Indexed: 11/29/2022] Open
Abstract
Gout is the most common form of inflammatory arthritis. It occurs when monosodium urate crystals (MSU) are deposited within joints due to hyperuricemia and persistent elevations of serum uric acid levels. Traditional gout treatment such as urate-lowering therapy is difficult to continue for a long period of time due to the risk of side effects. Recent studies have shown that the modulation of MSU-induced inflammatory responses is dependent on the inflammatory cytokine IL-1β, which has a central role in a chain of processes involving multiple cytokines and mediators. In this regard, the NLRP3 inflammasome is known to play a crucial part and thus has been proposed as a novel target in the treatment for gout. However, the biochemical mechanism for NLRP3 inflammasome activation has not yet been clearly elucidated. Therefore, this report can provide an overview of natural extractions targeted to prevent or treat NLRP3 inflammasome-mediated gout in the MSU-induced gout model. In addition, the research and development of such natural products are suggested as a potential strategy in the treatment of gout.
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Affiliation(s)
- Jun Ho Lee
- College of Korea Medicine, Woosuk University, Jeonju-si, South Korea
| | - Hyuk Soon Kim
- Department of Biomedical Sciences, College of Natural Science and Department of Health Sciences, The Graduate School of Dong-A University, Busan, South Korea
| | - Jun-Ho Lee
- College of Korea Medicine, Woosuk University, Jeonju-si, South Korea
| | - Gabsik Yang
- College of Korea Medicine, Woosuk University, Jeonju-si, South Korea
| | - Hong Jun Kim
- College of Korea Medicine, Woosuk University, Jeonju-si, South Korea
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17
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Williams EJ, Guilleminault L, Berthon BS, Eslick S, Wright T, Karihaloo C, Gately M, Baines KJ, Wood LG. Sulforaphane Reduces Pro-Inflammatory Response To Palmitic Acid In Monocytes And Adipose Tissue Macrophages. J Nutr Biochem 2022; 104:108978. [DOI: 10.1016/j.jnutbio.2022.108978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 12/03/2021] [Accepted: 02/09/2022] [Indexed: 10/18/2022]
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18
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ElSayed S, Jay GD, Cabezas R, Qadri M, Schmidt TA, Elsaid KA. Recombinant Human Proteoglycan 4 Regulates Phagocytic Activation of Monocytes and Reduces IL-1β Secretion by Urate Crystal Stimulated Gout PBMCs. Front Immunol 2022; 12:771677. [PMID: 34992596 PMCID: PMC8725049 DOI: 10.3389/fimmu.2021.771677] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022] Open
Abstract
Objectives To compare phagocytic activities of monocytes in peripheral blood mononuclear cells (PBMCs) from acute gout patients and normal subjects, examine monosodium urate monohydrate (MSU) crystal-induced IL-1β secretion ± recombinant human proteoglycan 4 (rhPRG4) or interleukin-1 receptor antagonist (IL-1RA), and study the anti-inflammatory mechanism of rhPRG4 in MSU stimulated monocytes. Methods Acute gout PBMCs were collected from patients in the Emergency Department and normal PBMCs were obtained from a commercial source. Monocytes in PBMCs were identified by flow cytometry. PBMCs were primed with Pam3CSK4 (1μg/mL) for 24h and phagocytic activation of monocytes was determined using fluorescently labeled latex beads. MSU (200μg/mL) stimulated IL-1β secretion was determined by ELISA. Reactive oxygen species (ROS) generation in monocytes was determined fluorometrically. PBMCs were incubated with IL-1RA (250ng/mL) or rhPRG4 (200μg/mL) and bead phagocytosis by monocytes was determined. THP-1 monocytes were treated with MSU crystals ± rhPRG4 and cellular levels of NLRP3 protein, pro-IL-1β, secreted IL-1β, and activities of caspase-1 and protein phosphatase-2A (PP2A) were quantified. The peritoneal influx of inflammatory and anti-inflammatory monocytes and neutrophils in Prg4 deficient mice was studied and the impact of rhPRG4 on immune cell trafficking was assessed. Results Enhanced phagocytic activation of gout monocytes under basal conditions (p<0.001) was associated with ROS generation and MSU stimulated IL-1β secretion (p<0.05). rhPRG4 reduced bead phagocytosis by normal and gout monocytes compared to IL-1RA and both treatments were efficacious in reducing IL-1β secretion (p<0.05). rhPRG4 reduced pro-IL-1β content, caspase-1 activity, conversion of pro-IL-1β to mature IL-1β and restored PP2A activity in monocytes (p<0.05). PP2A inhibition reversed rhPRG4’s effects on pro-IL-1β and mature IL-1β in MSU stimulated monocytes. Neutrophils accumulated in peritoneal cavities of Prg4 deficient mice (p<0.01) and rhPRG4 treatment reduced neutrophil accumulation and enhanced anti-inflammatory monocyte influx (p<0.05). Conclusions MSU phagocytosis was higher in gout monocytes resulting in higher ROS and IL-1β secretion. rhPRG4 reduced monocyte phagocytic activation to a greater extent than IL-1RA and reduced IL-1β secretion. The anti-inflammatory activity of rhPRG4 in monocytes is partially mediated by PP2A, and in vivo, PRG4 plays a role in regulating the trafficking of immune cells into the site of a gout flare.
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Affiliation(s)
- Sandy ElSayed
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA, United States
| | - Gregory D Jay
- Department of Emergency Medicine, Rhode Island Hospital, Providence, RI, United States
| | - Ralph Cabezas
- Department of Emergency Medicine, Rhode Island Hospital, Providence, RI, United States
| | - Marwa Qadri
- Department of Pharmacology, School of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Tannin A Schmidt
- Biomedical Engineering Department, University of Connecticut Health Center, Farmington, CT, United States
| | - Khaled A Elsaid
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA, United States
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3 β,23-Dihydroxy-12-ene-28-ursolic Acid Isolated from Cyclocarya paliurus Alleviates NLRP3 Inflammasome-Mediated Gout via PI3K-AKT-mTOR-Dependent Autophagy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:5541232. [PMID: 35047046 PMCID: PMC8763513 DOI: 10.1155/2022/5541232] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 11/01/2021] [Accepted: 12/16/2021] [Indexed: 12/12/2022]
Abstract
Gout is regarded as a painful inflammatory arthritis induced by the deposition of monosodium urate crystals in joints and soft tissues. Nucleotide-binding oligomerization domain (NOD)-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome-mediated IL-1β production plays a crucial role in the pathological process of gout. Cyclocarya paliurus (CP) tea was found to have an effect on reducing the blood uric acid level of people with hyperuricemia and gout. However, its medicinal ingredients and mechanism for the treatment of gout are still unclear. Thus, this study was designed to investigate the effects of the active triterpenoids isolated from C. paliurus on gout and explore the underlying mechanism. The results showed that compound 2 (3β,23-dihydroxy-12-ene-28-ursolic acid) from C. paliurus significantly decreased the protein expression of IL-1β, caspase-1, pro-IL-1β, pro-caspase-1, and NLRP3. Furthermore, the production of ROS in the intracellular was reduced after compound 2 treatment. However, ROS agonist rotenone remarkably reversed the inhibitory effect of compound 2 on the protein expression of NLRP3 inflammasome. Additionally, the expression level of LC3 and the ratio of LC3II/LC3I were increased, but the expression level of p62 was suppressed by compound 2 whereas an autophagy inhibitor 3-methyladenine (3-MA) significantly abolished the inhibitory effects of compound 2 on the generation of ROS and the protein expression of NLRP3 inflammasome. Moreover, compound 2 could ameliorate the expression ratio of p-PI3K/PI3K, p-AKT/AKT, and p-mTOR/mTOR. Interestingly, mTOR activator MHY-1485 could block the promotion effect of compound 2 on autophagy regulation and inhibitory effect of compound 2 on induction of ROS and IL-1β. In conclusion, these findings suggested that compound 2 may effectively improve NLRP3 inflammasome-mediated gout via PI3K-AKT-mTOR-dependent autophagy and could be further investigated as a potential agent against gout.
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20
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Zhou M, Wang W, Wang Z, Wang Y, Zhu Y, Lin Z, Tian S, Huang Y, Hu Q, Li H. Discovery and computational studies of 2-phenyl-benzoxazole acetamide derivatives as promising P2Y 14R antagonists with anti-gout potential. Eur J Med Chem 2022; 227:113933. [PMID: 34689072 DOI: 10.1016/j.ejmech.2021.113933] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 11/04/2022]
Abstract
The P2Y14 nucleotide receptor, a subtype of P2Y receptors, is implicated in many human inflammatory diseases. Based on the identification of favorable residues of two screening hits in the almost symmetrical P2Y14 binding domain, we describe the structural optimization of previously identified virtual screening hits 6 and 7 that result in the development of P2Y14R antagonists with a novel 2-phenyl-benzoxazole acetamide chemical scaffold. Notably, compound 52 showed potent P2Y14R antagonistic activity (IC50 = 2 nM), and a stronger inhibitory effect on MSU-induced inflammatory in vitro, better than a previously described P2Y14R antagonist PPTN. In vivo evaluation demonstrated that compound 52 also had satisfactory inhibitory activity on the inflammatory response of gout flares in mice. Moreover, P2Y14R antagonist 52 decreased paw swelling and inflammatory cell infiltration through cAMP/NLRP3/GSDMD signaling pathways in MSU-induced acute gouty arthritis mice. The discussions on the binding mechanism that employ MM/GBSA free energy calculations/decompositions also provide some useful clues for further structural designing of compound 52. Taken together, 2-phenyl-benzoxazole acetamide derivative 52 with potent P2Y14R antagonistic activity and in vivo potency could be a promising strategy for gout therapy and deserves further optimization.
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Affiliation(s)
- Mengze Zhou
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China; State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, 210009, China
| | - Weiwei Wang
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Zhongkui Wang
- Department of Neurology, Hebei Yanda Hospital, NO.6 Sipulan Road, Sanhe, Hebei, 065201, China
| | - Yilin Wang
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Yifan Zhu
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Zhiqian Lin
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Sheng Tian
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
| | - Yuan Huang
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Qinghua Hu
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, 210009, China.
| | - Huanqiu Li
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
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21
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Inhibitory effects of sulforaphane on NLRP3 inflammasome activation. Mol Immunol 2021; 140:175-185. [PMID: 34717147 DOI: 10.1016/j.molimm.2021.10.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 09/27/2021] [Accepted: 10/19/2021] [Indexed: 01/01/2023]
Abstract
SFN, a dietary phytochemical, is a significant member of isothiocyanates present in cruciferous vegetables at high levels in broccoli. It is a well-known activator of the Nrf2/ARE antioxidant pathway. Long since, the therapeutic effects of SFN have been widely studied in several different diseases. Other than the antioxidant effect, SFN also exhibits an anti-inflammatory effect through suppression of various mechanisms, including inflammasome activation. Considerably, SFN has been demonstrated to inhibit multiple inflammasomes, including NLRP3 inflammasome. NLRP3 inflammasome induces secretion of pro-inflammatory cytokines and promotes inflammatory cell death. The release of pro-inflammatory cytokines enhances the inflammatory response, in turn leading to tissue damage. These self-propelling inflammatory responses would need modulation with exogenous therapeutic agents to suppress them. SFN is a promising candidate molecule for the mitigation of NLRP3 inflammasome activation, which has been related to the pathogenesis of numerous disorders. In this review, we have provided fundamental knowledge about Sulforaphane, elaborated its characteristics, and evidentially focused on its mechanisms of action with regard to its anti-inflammatory, anti-oxidative, and neuroprotective features. Thereafter, we have summarized both in vitro and in vivo studies regarding SFN effect on NLRP3 inflammasome activation.
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22
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Protective Effect of Piplartine against LPS-Induced Sepsis through Attenuating the MAPKs/NF-κB Signaling Pathway and NLRP3 Inflammasome Activation. Pharmaceuticals (Basel) 2021; 14:ph14060588. [PMID: 34207356 PMCID: PMC8234963 DOI: 10.3390/ph14060588] [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] [Received: 05/14/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 12/24/2022] Open
Abstract
Piplartine (or Piperlongumine) is a natural alkaloid isolated from Piper longum L., which has been proposed to exhibit various biological properties such as anti-inflammatory effects; however, the effect of piplartine on sepsis has not been examined. This study was performed to examine the anti-inflammatory activities of piplartine in vitro, ex vivo and in vivo using murine J774A.1 macrophage cell line, peritoneal macrophages, bone marrow-derived macrophages and an animal sepsis model. The results demonstrated that piplartine suppresses iNOS and COX-2 expression, reduces PGE2, TNF-α and IL-6 production, decreases the phosphorylation of MAPKs and NF-κB and attenuates NF-κB activity by LPS-activated macrophages. Piplartine also inhibits IL-1β production and suppresses NLRP3 inflammasome activation by LPS/ATP- and LPS/nigericin-activated macrophages. Moreover, piplartine reduces the production of nitric oxide (NO) and TNF-α, IL-6 and IL-1β, decreases LPS-induced tissue damage, attenuates infiltration of inflammatory cells and enhances the survival rate. Collectively, these results demonstrate piplartine exhibits anti-inflammatory activities in LPS-induced inflammation and sepsis and suggest that piplartine might have benefits for sepsis treatment.
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Bai R, Lang Y, Shao J, Deng Y, Refuhati R, Cui L. The Role of NLRP3 Inflammasome in Cerebrovascular Diseases Pathology and Possible Therapeutic Targets. ASN Neuro 2021; 13:17590914211018100. [PMID: 34053242 PMCID: PMC8168029 DOI: 10.1177/17590914211018100] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cerebrovascular diseases are pathological conditions involving impaired blood flow in the brain, primarily including ischaemic stroke, intracranial haemorrhage, and subarachnoid haemorrhage. The nucleotide-binding and oligomerisation (NOD) domain-like receptor (NLR) family pyrin domain (PYD)-containing 3 (NLRP3) inflammasome is a protein complex and a vital component of the immune system. Emerging evidence has indicated that the NLRP3 inflammasome plays an important role in cerebrovascular diseases. The function of the NLRP3 inflammasome in the pathogenesis of cerebrovascular diseases remains an interesting field of research. In this review, we first summarised the pathological mechanism of cerebrovascular diseases and the pathological mechanism of the NLRP3 inflammasome in aggravating atherosclerosis and cerebrovascular diseases. Second, we outlined signalling pathways through which the NLRP3 inflammasome participates in aggravating or mitigating cerebrovascular diseases. Reactive oxygen species (ROS)/nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), ROS/thioredoxin-interacting protein (TXNIP) and purinergic receptor-7 (P2X7R) signalling pathways can activate the NLRP3 inflammasome; activation of the NLRP3 inflammasome can aggravate cerebrovascular diseases by mediating apoptosis and pyroptosis. Autophagy/mitochondrial autophagy, nuclear factor E2-related factor-2 (Nrf2), interferon (IFN)-β, sirtuin (SIRT), and phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) reportedly alleviate cerebrovascular diseases by inhibiting NLRP3 inflammasome activation. Finally, we explored specific inhibitors of the NLRP3 inflammasome based on the two-step activation of the NLRP3 inflammasome, which can be developed as new drugs to treat cerebrovascular diseases.
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Affiliation(s)
- Rongrong Bai
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Yue Lang
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Jie Shao
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Yu Deng
- Department of Hepatopancreatobiliary Surgery, The First Hospital of Jilin University, Changchun, China
| | - Reyisha Refuhati
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
| | - Li Cui
- Department of Neurology, Neuroscience Center, The First Hospital of Jilin University, Changchun, China
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Zhang X, Liu Y, Deng G, Huang B, Kai G, Chen K, Li J. A Purified Biflavonoid Extract From Selaginella moellendorffii Alleviates Gout Arthritis via NLRP3/ASC/Caspase-1 Axis Suppression. Front Pharmacol 2021; 12:676297. [PMID: 34079466 PMCID: PMC8165565 DOI: 10.3389/fphar.2021.676297] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/23/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Activation of nucleotide oligomerization domain-like receptor protein 3 (NLRP3) inflammasome plays a crucial role in gout. Selaginella moellendorffii has been confirmed effective for the treatment of gout in hospital preparations. Flavonoids, such as amentoflavone (AM), are the main active components of this medicine. Purpose: We aimed to investigate the flavonoid extract (TF) and AM's effects on NLRP3 inflammasome in vitro and their preventive effects on gout in vivo. Methods: LC-MS method was employed to investigate the chemical profile of TF. The cellular inflammation model was established by lipopolysaccharide (LPS) or monosodium urate (MSU) stimulation. The cell membrane integrality and morphological characteristics were determined by using Lactate dehydrogenase (LDH) assay kits, propidium iodide (PI) stain, and scanning electron microscopy (SEM). The inflammatory cytokines and NLRP3 inflammasome activation were determined using enzyme-linked immunosorbent assay (ELISA), quantitative real-time polymerase chain reaction (RT-PCR), immunofluorescence staining, and western blotting. The acute gout mouse model was induced by MSU injection into footpads, and then the paw edema, inflammatory mediators, and histological examination (HE) were analyzed. Results: The main constituents in TF are AM and robustaflavone. In the cellular inflammation model, TF down-regulated the levels of nitric oxide (NO), TNF-α, and LDH, suppressed NLRP3 inflammasome-derived interleukin-1β (IL-1β) secretion, decreased caspase-1 activation, repressed mature IL-1β expression, inhibited ASC speck formation and NLRP3 protein expression. In an acute gout mouse model, oral administration of TF to mice effectively alleviated paw edema, reduced inflammatory features, and decreased the levels of IL-1β in mouse foot tissue. Similarly, the characteristic constituent AM was also able to down-regulated the levels of NO, TNF-α, and LDH, down-regulate the mRNA expression of IL-1β, TNF-α, caspase-1, and NLRP3. Besides, the foot thickness, lymphocyte infiltration, and IL-1β level were also prevented by AM. Conclusion: The results indicated that TF and its main constituent AM alleviate gout arthritis via NLRP3/ASC/Caspase-1 axis suppression.
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Affiliation(s)
- Xueyan Zhang
- Key Laboratory of Ministry of Education on Traditional Chinese Medicine Resource and Compound Prescription, Key Laboratory of Resources and Chemistry of Chinese Medicine, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Yingbo Liu
- Key Laboratory of Ministry of Education on Traditional Chinese Medicine Resource and Compound Prescription, Key Laboratory of Resources and Chemistry of Chinese Medicine, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Guangrui Deng
- Key Laboratory of Ministry of Education on Traditional Chinese Medicine Resource and Compound Prescription, Key Laboratory of Resources and Chemistry of Chinese Medicine, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China.,Department of Pharmacy, Huanggang Hospital of Traditional Chinese Medicine, Huanggang, China
| | - Bisheng Huang
- Key Laboratory of Ministry of Education on Traditional Chinese Medicine Resource and Compound Prescription, Key Laboratory of Resources and Chemistry of Chinese Medicine, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Guoyin Kai
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Keli Chen
- Key Laboratory of Ministry of Education on Traditional Chinese Medicine Resource and Compound Prescription, Key Laboratory of Resources and Chemistry of Chinese Medicine, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
| | - Juan Li
- Key Laboratory of Ministry of Education on Traditional Chinese Medicine Resource and Compound Prescription, Key Laboratory of Resources and Chemistry of Chinese Medicine, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, China
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25
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Su CC, Wang SC, Chen IC, Chiu FY, Liu PL, Huang CH, Huang KH, Fang SH, Cheng WC, Huang SP, Yeh HC, Liu CC, Lee PY, Huang MY, Li CY. Zerumbone Suppresses the LPS-Induced Inflammatory Response and Represses Activation of the NLRP3 Inflammasome in Macrophages. Front Pharmacol 2021; 12:652860. [PMID: 34045963 PMCID: PMC8144706 DOI: 10.3389/fphar.2021.652860] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/16/2021] [Indexed: 12/19/2022] Open
Abstract
Zerumbone is a natural product isolated from the pinecone or shampoo ginger, Zingiber zerumbet (L.) Smith, which has a wide range of pharmacological activities, including anti-inflammatory effects. However, the effects of zerumbone on activation of the NLRP3 inflammasome in macrophages have not been examined. This study aimed to examine the effects of zerumbone on LPS-induced inflammatory responses and NLRP3 inflammasome activation using murine J774A.1 cells, murine peritoneal macrophages, and murine bone marrow-derived macrophages. Cells were treated with zerumbone following LPS or LPS/ATP treatment. Production of nitric oxide (NO) was measured by Griess reagent assay. The levels of IL-6, TNF-α, and IL-1β secretion were analyzed by ELISA. Western blotting analysis was performed to determine the expression of inducible NO synthase (iNOS), COX-2, MAPKs, and NLRP3 inflammasome-associated proteins. The activity of NF-κB was determined by a promoter reporter assay. The assembly of NLRP3 was examined by immunofluorescence staining and observed by confocal laser microscopy. Our experimental results indicated that zerumbone inhibited the production of NO, PGE2 and IL-6, suppressed the expression of iNOS and COX-2, repressed the phosphorylation of ERK, and decreased the activity of NF-κB in LPS-activated J774A.1 cells. In addition, zerumbone suppressed the production of IL-1β and inhibited the activity of NLRP3 inflammasome in LPS/ATP- and LPS/nigericin-activated J774A.1 cells. On the other hand, we also found that zerumbone repressed the production of NO and proinflammatory cytokines in LPS-activated murine peritoneal macrophages and bone marrow-derived macrophages. In conclusion, our experimental results demonstrate that zerumbone effectively attenuates the LPS-induced inflammatory response in macrophages both in vitro and ex vivo by suppressing the activation of the ERK-MAPK and NF-κB signaling pathways as well as blocking the activation of the NLRP3 inflammasome. These results imply that zerumbone may be beneficial for treating sepsis and inflammasome-related diseases.
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Affiliation(s)
- Chia-Cheng Su
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Urology, Department of Surgery, Chi-Mei Medical Center, Tainan, Taiwan.,Department of Senior Citizen Service Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Shu-Chi Wang
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I-Chen Chen
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Pediatrics, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fang-Yen Chiu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Po-Len Liu
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chi-Han Huang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuan-Hua Huang
- Division of Urology, Department of Surgery, Chi-Mei Medical Center, Tainan, Taiwan
| | - Shih-Hua Fang
- Institute of Athletics, National Taiwan University of Sport, Taichung, Taiwan
| | - Wei-Chung Cheng
- Graduate Institute of Biomedical Science, Research Center for Cancer Biology, China Medical University, Taichung, Taiwan
| | - Shu-Pin Huang
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsin-Chih Yeh
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Ching-Chih Liu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Ophthalmology, Chi Mei Medical Center, Taichung, Taiwan
| | - Po-Yen Lee
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Yii Huang
- Department of Radiation Oncology, Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Yang Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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Choi N, Yang G, Jang JH, Kang HC, Cho YY, Lee HS, Lee JY. Loganin Alleviates Gout Inflammation by Suppressing NLRP3 Inflammasome Activation and Mitochondrial Damage. Molecules 2021; 26:1071. [PMID: 33670601 PMCID: PMC7923023 DOI: 10.3390/molecules26041071] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/14/2021] [Accepted: 02/15/2021] [Indexed: 02/08/2023] Open
Abstract
Gout is a type of inflammatory arthritis caused by the deposition of monosodium uric acid (MSU) crystals in tissues. The etiology of gout is directly linked to the NLRP3 inflammasome, since MSU crystals are NLRP3 inflammasome activators. Therefore, we decided to search for a small-molecule inhibitor of the NLRP3 inflammasome for the prevention of gout inflammation. We found that loganin suppressed MSU crystals-induced caspase-1 (p20) and interleukin (IL)-1β production and apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) specks formation in mouse primary macrophages, showing its ability to inhibit the NLRP3 inflammasome. In an air pouch inflammation model, oral administration of loganin to mice prevented MSU crystals-induced production of mature IL-1β and IL-18 in air pouch exudates, resulting in decreased neutrophil recruitment. Furthermore, oral administration of loganin suppressed MSU crystals-induced gout inflammation in a mouse foot gout model, which was accompanied by the inhibition of the NLRP3 inflammasome. Loganin blocked de novo synthesis of mitochondrial DNA in air pouches and foot tissues injected with MSU crystals. Consistently, loganin prevented MSU crystals-induced mitochondrial damage in macrophages, as it increased mitochondrial membrane potential and decreased the amount of mitochondrial reactive oxygen species. These data demonstrate that loganin suppresses NLRP3 inflammasome activation by inhibiting mitochondrial stress. These results suggest a novel pharmacological strategy to prevent gout inflammation by blocking NLRP3 inflammasome activation and mitochondrial dysfunction.
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Affiliation(s)
- Nuri Choi
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (N.C.); (J.H.J.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Gabsik Yang
- Department of Pharmacology, College of Korean Medicine, Woosuk University, Jeonbuk 553382, Korea;
| | - Joo Hyeon Jang
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (N.C.); (J.H.J.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Han Chang Kang
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (N.C.); (J.H.J.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Yong-Yeon Cho
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (N.C.); (J.H.J.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Hye Suk Lee
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (N.C.); (J.H.J.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Joo Young Lee
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (N.C.); (J.H.J.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
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Moon SJ, Jhun J, Ryu J, Kwon JY, Kim SY, Jung K, Cho ML, Min JK. The anti-arthritis effect of sulforaphane, an activator of Nrf2, is associated with inhibition of both B cell differentiation and the production of inflammatory cytokines. PLoS One 2021; 16:e0245986. [PMID: 33592002 PMCID: PMC7886167 DOI: 10.1371/journal.pone.0245986] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 01/11/2021] [Indexed: 12/12/2022] Open
Abstract
Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is an important transcription factor that plays a pivotal role in cellular defense against oxidative injury. Nrf2 signaling is involved in attenuating autoimmune disorders such as rheumatoid arthritis (RA). B cells play several roles in the pathogenesis of RA, such as in autoantibody production, antigen presentation, and T-cell activation. We investigated the anti-arthritic mechanisms of sulforaphane, an activator of Nrf2, in terms of its effect on B cells. To investigate the effect of sulforaphane on collagen-induced arthritis (CIA), sulforaphane was administered intraperitoneally after CIA induction. Hematoxylin and eosin-stained sections were scored for inflammation, pannus invasion, and bone and cartilage damage. We assessed the expression levels of inflammation-related factors by real-time PCR and the levels of various IgG subclasses by enzyme-linked immunosorbent assay. Sulforaphane treatment reduced the arthritis score and the severity of histologic inflammation in CIA mice. The joints from sulforaphane-treated CIA mice showed decreased expression of interleukin (IL)-6, IL-17, tumor necrosis factor (TNF)-α, receptor activator of NF-κB ligand, and tartrate-resistant acid phosphatase. Sulforaphane-treated mice showed lower circulating levels of type-II-collagen-specific IgG, IgG1, and IgG2a. In vitro, sulforaphane treatment significantly reduced the differentiation of lipopolysaccharide-stimulated murine splenocytes into plasma B cells and germinal-center B cells. Finally, sulforaphane significantly inhibited the production of IL-6, TNF-α, and IL-17 by human peripheral blood mononuclear cells stimulated with an anti-CD3 monoclonal antibody in a dose-dependent manner. Inhibition of differentiation into plasma B and Germinal Center B cells may be the mechanism underlying the anti-arthritic effect of sulforaphane.
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Affiliation(s)
- Su-Jin Moon
- Division of Rheumatology, Department of Internal Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, South Korea
| | - Jooyeon Jhun
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Jaeyoon Ryu
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Ji ye Kwon
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | - Se-Young Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
| | | | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul, South Korea
- Impact Biotech, Seoul, South Korea
- Laboratory of Immune Network, Conversant Research Consortium in Immunologic Disease, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- * E-mail: (JKM); (MLC)
| | - Jun-Ki Min
- Department of Internal Medicine, and the Clinical Medicine Research Institute of Bucheon St. Mary’s Hospital, Bucheon-si, South Korea
- * E-mail: (JKM); (MLC)
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Seok JK, Kang HC, Cho YY, Lee HS, Lee JY. Therapeutic regulation of the NLRP3 inflammasome in chronic inflammatory diseases. Arch Pharm Res 2021; 44:16-35. [PMID: 33534121 PMCID: PMC7884371 DOI: 10.1007/s12272-021-01307-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/07/2021] [Indexed: 12/13/2022]
Abstract
Inflammasomes are cytosolic pattern recognition receptors that recognize pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs) derived from invading pathogens and damaged tissues, respectively. Upon activation, the inflammasome forms a complex containing a receptor protein, an adaptor, and an effector to induce the autocleavage and activation of procaspase-1 ultimately culminating in the maturation and secretion of IL-1β and IL-18 and pyroptosis. Inflammasome activation plays an important role in host immune responses to pathogen infections and tissue repair in response to cellular damage. The NLRP3 inflammasome is a well-characterized pattern recognition receptor and is well known for its critical role in the regulation of immunity and the development and progression of various inflammatory diseases. In this review, we summarize recent efforts to develop therapeutic applications targeting the NLRP3 inflammasome to cure and prevent chronic inflammatory diseases. This review extensively discusses NLRP3 inflammasome-related diseases and current development of small molecule inhibitors providing beneficial information on the design of therapeutic strategies for NLRP3 inflammasome-related diseases. Additionally, small molecule inhibitors are classified depending on direct or indirect targeting mechanism to describe the current status of the development of pharmacological inhibitors.
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Affiliation(s)
- Jin Kyung Seok
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Han Chang Kang
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Yong-Yeon Cho
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Hye Suk Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Joo Young Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea.
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Saber S, Youssef ME, Sharaf H, Amin NA, El-Shedody R, Aboutouk FH, El-Galeel YA, El-Hefnawy A, Shabaka D, Khalifa A, Saleh RA, Osama D, El-Zoghby G, Gobba NA. BBG enhances OLT1177-induced NLRP3 inflammasome inactivation by targeting P2X7R/NLRP3 and MyD88/NF-κB signaling in DSS-induced colitis in rats. Life Sci 2021; 270:119123. [PMID: 33548287 DOI: 10.1016/j.lfs.2021.119123] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023]
Abstract
Chronic ulceration of the colon is associated with the activation of TLR4/NF-κB and P2X7R/NLRP3 signaling pathways. We investigated the effect of individual or combined administration of BBG, a P2X7R blocker, and OLT1177, a selective NLRP3 inhibitor, in the dextran sodium sulfate-induced ulcerative colitis (UC) rat model. The ulcerative rats were treated orally with brilliant blue G (BBG) (50 mg/kg/day) or OLT1177 (200 mg/kg/day) or a combination of both. Myd88 and NF-κB levels were measured by ELISA, qRT-PCR, and immunohistochemical staining. Cytokines known to be associated with TLR4/NF-κB or P2X7R/NLRP3 signaling were measured by ELISA. P2X7R and NLRP3 expression were measured by ELISA and qRT-PCR. The administration of BBG or OLT1177 ameliorated the toxic effects of DSS on the colon as they restored normal colonic macroscopic and microscopic morphology. BBG administration, but not OLT1177, reduced the expression of Myd88, NF-κB, IL-6, and TNF-α in addition to lowering P2X7R and oxidative stress levels. Individual BBG or OLT1177 administration decreased NLRP3 inflammasome recruitment and subsequent activation of caspase-1, IL-1β, and IL-18. However, the combined administration of OLT1177 with BBG potentiated its inhibitory effect on the NLRP3, which was reflected by the additional suppressive effect on caspase-1, IL-1β, IL-18 levels. In conclusion, BBG/OLT1177 exhibited complementary effects and effectively ameliorated UC. This novel approach provides a basis for the clinical application of this combination for the treatment of IBDs and might also be promising for the pharmacological intervention of other NLRP3 inflammasome-dependent inflammatory conditions.
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Affiliation(s)
- Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt.
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Hossam Sharaf
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Noha A Amin
- Department of Haematology, Theodor Bilharz Research Institute, Egypt
| | - Ruwyda El-Shedody
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Farah H Aboutouk
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Yumna Abd El-Galeel
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amr El-Hefnawy
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dina Shabaka
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Arwa Khalifa
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Renad A Saleh
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Donya Osama
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Ghada El-Zoghby
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Naglaa A Gobba
- Department of Pharmacology and Toxicology, College of Pharmacy, Misr University for Science and Technology, Egypt
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Seok JK, Kang HC, Cho YY, Lee HS, Lee JY. Regulation of the NLRP3 Inflammasome by Post-Translational Modifications and Small Molecules. Front Immunol 2021; 11:618231. [PMID: 33603747 PMCID: PMC7884467 DOI: 10.3389/fimmu.2020.618231] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/29/2020] [Indexed: 12/13/2022] Open
Abstract
Inflammation is a host protection mechanism that eliminates invasive pathogens from the body. However, chronic inflammation, which occurs repeatedly and continuously over a long period, can directly damage tissues and cause various inflammatory and autoimmune diseases. Pattern recognition receptors (PRRs) respond to exogenous infectious agents called pathogen-associated molecular patterns and endogenous danger signals called danger-associated molecular patterns. Among PRRs, recent advancements in studies of the NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasome have established its significant contribution to the pathology of various inflammatory diseases, including metabolic disorders, immune diseases, cardiovascular diseases, and cancer. The regulation of NLRP3 activation is now considered to be important for the development of potential therapeutic strategies. To this end, there is a need to elucidate the regulatory mechanism of NLRP3 inflammasome activation by multiple signaling pathways, post-translational modifications, and cellular organelles. In this review, we discuss the intracellular signaling events, post-translational modifications, small molecules, and phytochemicals participating in the regulation of NLRP3 inflammasome activation. Understanding how intracellular events and small molecule inhibitors regulate NLRP3 inflammasome activation will provide crucial information for elucidating the associated host defense mechanism and the development of efficient therapeutic strategies for chronic diseases.
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Affiliation(s)
- Jin Kyung Seok
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, South Korea
| | - Han Chang Kang
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, South Korea
| | - Yong-Yeon Cho
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, South Korea
| | - Hye Suk Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, South Korea
| | - Joo Young Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, South Korea
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31
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Lee YM, Son E, Kim DS. Comparative Study of Anti-Gouty Arthritis Effects of Sam-Myo-Whan according to Extraction Solvents. PLANTS 2021; 10:plants10020278. [PMID: 33535406 PMCID: PMC7911915 DOI: 10.3390/plants10020278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 12/17/2022]
Abstract
Sam-Myo-Whan (SMW) has been used in Korean and Chinese traditional medicine to help treat gout, by reducing swelling and inflammation and relieving pain. This study compared the effects of SMW extracted by using different solvents, water (SMWW) and 30% EtOH (SMWE), in the treatment of gouty arthritis. To this end, we analyzed the main components of SMWW and SMWE, using high-performance liquid chromatography (HPLC). Anti-hyperuricemic activity was evaluated by measuring serum uric acid levels in hyperuricemic rats. The effects of SMWW and SMWE on swelling, pain, and inflammation in gouty arthritis were investigated by measuring affected limb swelling and weight-bearing, as well as by enzyme-linked immunosorbent assays, to assess the levels of proinflammatory cytokines and myeloperoxidase (MPO). In potassium oxonate (PO)-induced hyperuricemic rats, SMWW and SMWE both significantly decreased serum uric acid to similar levels. In monosodium urate (MSU)-induced gouty arthritis mice, SMWE more efficiently decreased paw swelling and attenuated joint pain compare to SMWW. Moreover, SMWE and SMWW suppressed the level of inflammation by downregulating proinflammatory cytokines (interleukin-1β, tumor necrosis factor-α, and interleukin-6) and MPO activity. HPLC analysis further revealed that berberine represented one of the major active ingredients demonstrating the greatest change in concentration between SMWW and SMWE. Our data demonstrate that SMWE retains a more effective therapeutic concentration compared to SMWW, in a mouse model of gouty arthritis.
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Lee JH, Kim HJ, Kim JU, Yook TH, Kim KH, Lee JY, Yang G. A Novel Treatment Strategy by Natural Products in NLRP3 Inflammasome-Mediated Neuroinflammation in Alzheimer's and Parkinson's Disease. Int J Mol Sci 2021; 22:ijms22031324. [PMID: 33525754 PMCID: PMC7866084 DOI: 10.3390/ijms22031324] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 01/22/2021] [Accepted: 01/23/2021] [Indexed: 12/12/2022] Open
Abstract
Alzheimer’s disease (AD) and Parkinson’s disease (PD) are the most common neurodegenerative diseases. Many studies have demonstrated that the release of NLRP3 inflammasome-mediated proinflammatory cytokines by the excessive activation of microglia is associated with the pathogenesis of AD and PD and suggested that the NLRP3 inflammasome plays an important role in AD and PD development. In both diseases, various stimuli, such as Aβ and α-synuclein, accelerate the formation of the NLRP3 inflammasome in microglia and induce pyroptosis through the expression of interleukin (IL)-1β, caspase-1, etc., where neuroinflammation contributes to gradual progression and deterioration. However, despite intensive research, the exact function and regulation of the NLRP3 inflammasome has not yet been clearly identified. Moreover, there have not yet been any experiments of clinical use, although many studies have recently been conducted to improve treatment of inflammatory diseases using various inhibitors for NLRP3 inflammasome pathways. However, recent studies have reported that various natural products show improvement effects in the in vivo models of AD and PD through the regulation of NLRP3 inflammasome assembly. Therefore, the present review provides an overview of natural extraction studies aimed at the prevention or treatment of NLRP3 inflammasome-mediated neurological disorders. It is suggested that the discovery and development of these various natural products could be a potential strategy for NLRP3 inflammasome-mediated AD and PD treatment.
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Affiliation(s)
- Jun Ho Lee
- College of Korea Medicine, Woosuk University, Jeonju-si, Jeollabuk-do 54986, Korea; (J.H.L.); (H.J.K.); (J.U.K.); (T.H.Y.); (K.H.K.)
| | - Hong Jun Kim
- College of Korea Medicine, Woosuk University, Jeonju-si, Jeollabuk-do 54986, Korea; (J.H.L.); (H.J.K.); (J.U.K.); (T.H.Y.); (K.H.K.)
| | - Jong Uk Kim
- College of Korea Medicine, Woosuk University, Jeonju-si, Jeollabuk-do 54986, Korea; (J.H.L.); (H.J.K.); (J.U.K.); (T.H.Y.); (K.H.K.)
| | - Tae Han Yook
- College of Korea Medicine, Woosuk University, Jeonju-si, Jeollabuk-do 54986, Korea; (J.H.L.); (H.J.K.); (J.U.K.); (T.H.Y.); (K.H.K.)
| | - Kyeong Han Kim
- College of Korea Medicine, Woosuk University, Jeonju-si, Jeollabuk-do 54986, Korea; (J.H.L.); (H.J.K.); (J.U.K.); (T.H.Y.); (K.H.K.)
| | - Joo Young Lee
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea;
| | - Gabsik Yang
- College of Korea Medicine, Woosuk University, Jeonju-si, Jeollabuk-do 54986, Korea; (J.H.L.); (H.J.K.); (J.U.K.); (T.H.Y.); (K.H.K.)
- Correspondence: ; Tel.: +82-63-290-9030
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Qi Z, Ji H, Le M, Li H, Wieland A, Bauer S, Liu L, Wink M, Herr I. Sulforaphane promotes C. elegans longevity and healthspan via DAF-16/DAF-2 insulin/IGF-1 signaling. Aging (Albany NY) 2021; 13:1649-1670. [PMID: 33471780 PMCID: PMC7880325 DOI: 10.18632/aging.202512] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 12/18/2020] [Indexed: 12/12/2022]
Abstract
The broccoli-derived isothiocyanate sulforaphane inhibits inflammation, oxidative stress and cancer, but its effect on healthspan and longevity are unclear. We used the C. elegans nematode model and fed the wildtype and 9 mutant strains ±sulforaphane. The lifespan, phenotype, pharyngeal pumping, mobility, lipofuscin accumulation, and RNA and protein expression of the nematodes were assessed by using Kaplan-Meier survival analysis, in vivo live imaging, fluorescence microscopy, and qRT-PCR. Sulforaphane increased the lifespan and promoted a health-related phenotype by increasing mobility, appetite and food intake and reducing lipofuscin accumulation. Mechanistically, sulforaphane inhibited DAF-2-mediated insulin/insulin-like growth factor signaling and its downstream targets AGE-1, AKT-1/AKT-2. This was associated with increased nuclear translocation of the FOXO transcription factor homolog DAF-16. In turn, the target genes sod-3, mtl-1 and gst-4, known to enhance stress resistance and lifespan, were upregulated. These results indicate that sulforaphane prolongs the lifespan and healthspan of C. elegans through insulin/IGF-1 signaling. Our results provide the basis for a nutritional sulforaphane-enriched strategy for the promotion of healthy aging and disease prevention.
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Affiliation(s)
- Zhimin Qi
- Molecular OncoSurgery, Section Surgical Research, Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany
| | - Huihui Ji
- Molecular OncoSurgery, Section Surgical Research, Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany
| | - Monika Le
- Molecular OncoSurgery, Section Surgical Research, Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany
| | - Hanmei Li
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, Heidelberg, Germany
| | - Angela Wieland
- Molecular OncoSurgery, Section Surgical Research, Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany
| | - Sonja Bauer
- Molecular OncoSurgery, Section Surgical Research, Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany
| | - Li Liu
- Molecular OncoSurgery, Section Surgical Research, Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, Heidelberg, Germany
| | - Ingrid Herr
- Molecular OncoSurgery, Section Surgical Research, Department of General, Visceral and Transplant Surgery, University of Heidelberg, Heidelberg, Germany
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Anderson FL, von Herrmann KM, Andrew AS, Kuras YI, Young AL, Scherzer CR, Hickey WF, Lee SL, Havrda MC. Plasma-borne indicators of inflammasome activity in Parkinson's disease patients. NPJ PARKINSONS DISEASE 2021; 7:2. [PMID: 33398042 PMCID: PMC7782812 DOI: 10.1038/s41531-020-00147-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 11/12/2020] [Indexed: 12/13/2022]
Abstract
Parkinson’s disease (PD) is a neurodegenerative disorder characterized by motor and non-motor symptoms and loss of dopaminergic neurons of the substantia nigra. Inflammation and cell death are recognized aspects of PD suggesting that strategies to monitor and modify these processes may improve the management of the disease. Inflammasomes are pro-inflammatory intracellular pattern recognition complexes that couple these processes. The NLRP3 inflammasome responds to sterile triggers to initiate pro-inflammatory processes characterized by maturation of inflammatory cytokines, cytoplasmic membrane pore formation, vesicular shedding, and if unresolved, pyroptotic cell death. Histologic analysis of tissues from PD patients and individuals with nigral cell loss but no diagnosis of PD identified elevated expression of inflammasome-related proteins and activation-related “speck” formation in degenerating mesencephalic tissues compared with controls. Based on previous reports of circulating inflammasome proteins in patients suffering from heritable syndromes caused by hyper-activation of the NLRP3 inflammasome, we evaluated PD patient plasma for evidence of inflammasome activity. Multiple circulating inflammasome proteins were detected almost exclusively in extracellular vesicles indicative of ongoing inflammasome activation and pyroptosis. Analysis of plasma obtained from a multi-center cohort identified elevated plasma-borne NLRP3 associated with PD status. Our findings are consistent with others indicating inflammasome activity in neurodegenerative disorders. Findings suggest mesencephalic inflammasome protein expression as a histopathologic marker of early-stage nigral degeneration and suggest plasma-borne inflammasome-related proteins as a potentially useful class of biomarkers for patient stratification and the detection and monitoring of inflammation in PD.
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Affiliation(s)
- Faith L Anderson
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA
| | - Katharine M von Herrmann
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA
| | - Angeline S Andrew
- Department of Community and Family Medicine, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA
| | - Yuliya I Kuras
- APDA Center for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, USA
| | - Alison L Young
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA
| | - Clemens R Scherzer
- APDA Center for Advanced Parkinson Research, Harvard Medical School, Brigham & Women's Hospital, Boston, MA, USA
| | - William F Hickey
- Department of Pathology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Stephen L Lee
- Department of Neurology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Matthew C Havrda
- Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth College, Hanover, NH, USA.
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Cardozo LFMF, Alvarenga LA, Ribeiro M, Dai L, Shiels PG, Stenvinkel P, Lindholm B, Mafra D. Cruciferous vegetables: rationale for exploring potential salutary effects of sulforaphane-rich foods in patients with chronic kidney disease. Nutr Rev 2020; 79:1204-1224. [DOI: 10.1093/nutrit/nuaa129] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Abstract
Sulforaphane (SFN) is a sulfur-containing isothiocyanate found in cruciferous vegetables (Brassicaceae) and a well-known activator of nuclear factor-erythroid 2-related factor 2 (Nrf2), considered a master regulator of cellular antioxidant responses. Patients with chronic diseases, such as diabetes, cardiovascular disease, cancer, and chronic kidney disease (CKD) present with high levels of oxidative stress and a massive inflammatory burden associated with diminished Nrf2 and elevated nuclear transcription factor-κB-κB expression. Because it is a common constituent of dietary vegetables, the salutogenic properties of sulforaphane, especially it’s antioxidative and anti-inflammatory properties, have been explored as a nutritional intervention in a range of diseases of ageing, though data on CKD remain scarce. In this brief review, the effects of SFN as a senotherapeutic agent are described and a rationale is provided for studies that aim to explore the potential benefits of SFN-rich foods in patients with CKD.
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Affiliation(s)
- Ludmila F M F Cardozo
- Graduate Program in Cardiovascular Sciences, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - Livia A Alvarenga
- Graduate Program in Medical Sciences, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - Marcia Ribeiro
- Graduate Program in Nutrition Sciences, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
| | - Lu Dai
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Institutet, Stockholm, Sweden
| | - Paul G Shiels
- Wolfson Wohl Translational Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, Scotland
| | - Peter Stenvinkel
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Institutet, Stockholm, Sweden
| | - Bengt Lindholm
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Institutet, Stockholm, Sweden
| | - Denise Mafra
- Graduate Program in Cardiovascular Sciences, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
- Graduate Program in Medical Sciences, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
- Graduate Program in Nutrition Sciences, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil
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36
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Olcum M, Tastan B, Ercan I, Eltutan IB, Genc S. Inhibitory effects of phytochemicals on NLRP3 inflammasome activation: A review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 75:153238. [PMID: 32507349 DOI: 10.1016/j.phymed.2020.153238] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 04/12/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The NLRP3 inflammasome formation and following cytokine secretion is a crucial step in innate immune responses. Internal and external factors may trigger inflammasome activation and result in inflammatory cytokine secretion. Inflammasome formation and activity play critical roles in several disease pathologies such as cardiovascular, metabolic, renal, digestive, and CNS diseases. Underlying pathways are not yet clear, but phytochemicals as alternative therapies have been extensively used for suppression of inflammatory responses. PURPOSE In this review, we aimed to summarize in vivo and in vitro effects on NLRP3 inflammasome activation of selected phytochemicals. METHOD Three phytochemicals; Sulforaphane, Curcumin, and Resveratrol were selected, and studies were reviewed to clarify their intracellular signaling mechanism in NLRP3 inflammasome activity. PubMed and Scopus databases are used for the search. For sulforaphane, 8 articles, for curcumin, 25 articles, and for resveratrol, 41 articles were included in the review. CONCLUSION In vitro and in vivo studies pointed out that the selected phytochemicals have inhibitory properties on NLRP3 inflammasome activity. However, neither the mechanism is clear, nor the study designs and doses are standardized.
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Affiliation(s)
- Melis Olcum
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Izmir, Turkey
| | - Bora Tastan
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Izmir, Turkey; Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Ilkcan Ercan
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Izmir, Turkey; Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Irem B Eltutan
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Izmir, Turkey; Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Izmir, Turkey
| | - Sermin Genc
- Izmir Biomedicine and Genome Center, Dokuz Eylul University Health Campus, Izmir, Turkey; Department of Neuroscience, Health Science Institute, Dokuz Eylul University, Izmir, Turkey.
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Li G, Dong Y, Liu D, Zou Z, Hao G, Gao X, Pan P, Liang G. NEK7 Coordinates Rapid Neuroinflammation After Subarachnoid Hemorrhage in Mice. Front Neurol 2020; 11:551. [PMID: 32733353 PMCID: PMC7360676 DOI: 10.3389/fneur.2020.00551] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 05/15/2020] [Indexed: 01/02/2023] Open
Abstract
Background: Subarachnoid hemorrhage (SAH) is a devastating disease which leads to high morbidity and mortality. Recent studies have indicated that, never in mitosis gene A-related expressed kinase 7 (NEK7), is involved in NLRP3 (NLR family, pyrin domain containing 3) associated inflammation, which may result in subsequent cellular and vascular damage. The aim of this study was to investigate whether NEK7 is involved in the pathophysiology of subarachnoid hemorrhage. Methods: 455 adult male C57B6J mice, weighing 22 to 30 g, were used to investigate the time course of NEK7 expression in the ipsilateral cortex after SAH, and to investigate the intrinsic function and mechanism of NEK7. A vascular puncture model was used to create the mouse SAH model, and intracerebroventricular injection was used to deliver NEK7 recombinant protein, NEK7 small interfering RNA, nigericin, and MCC950. Neurological score, brain water content, Evans blue extravasation, immunofluorescence, and western blot were evaluated for neurological outcome, neuronal apoptosis, blood-brain barrier damage, microglia accumulation, and the mechanism of NEK7 and NLRP3 activation. Results: Our results exhibited that intrinsic NEK7 was elevated after SAH in the cortex of the left/ipsilateral hemisphere and was colocalized with microglia, endothelial cells, neuron, astrocyte, and oligodendrocyte, and highly expressed in microglia and endothelial cells after SAH. NEK7 recombinant protein aggravated neurological deficits, brain edema, neuronal apoptosis, BBB permeability, microglial accumulation, and activated caspase-1 and IL-1β maturation, while NEK7 small interfering RNA injection reversed those effects. Nigericin administration enhanced ASC oligomerization, caspase-1 and IL-1β maturation without increasing the protein level of NLRP3, and ASC oligomerization and caspase-1 IL-1β maturation reduced when combined with NEK7 knockdown or MCC950 delivery. We found the level of NEK7 expression increased after SAH and could activate the downstream NLRP3 pathway to induce caspase-1, IL-1β expression and then increased the BBB opening, microglia accumulation and neuronal apoptosis after SAH. Conclusions: This study demonstrated for the first time that NEK7 mediated the harmful effects of neuronal apoptosis and BBB disruption after SAH, which may potentially be mediated by the NEK7/NLRP3 signal. NEK7 served as a co-component for NLRP3 inflammasome activation after SAH. NEK7 may be a promising target on the management of SAH patients.
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Affiliation(s)
- Gen Li
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China.,Dalian Medical University, Dalian, China
| | - Yushu Dong
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China
| | - Dongdong Liu
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China.,Dalian Medical University, Dalian, China
| | - Zheng Zou
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China
| | - Guangzhi Hao
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China
| | - Xu Gao
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China
| | - Pengyu Pan
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China
| | - Guobiao Liang
- Department of Neurosurgery, General Hospital of Northern Theater Command (General Hospital of Shenyang Military Command), Shenyang, China
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The Combination of Sulforaphane and Fernblock ® XP Improves Individual Beneficial Effects in Normal and Neoplastic Human Skin Cell Lines. Nutrients 2020; 12:nu12061608. [PMID: 32486135 PMCID: PMC7353001 DOI: 10.3390/nu12061608] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 05/29/2020] [Indexed: 12/22/2022] Open
Abstract
Plenty of evidence supports the health effects exerted by dietary supplements containing phytochemicals, but the actual efficacy and safety of their combinations have been seldom experimentally evaluated. On this basis, we investigated in vitro the antioxidant/antineoplastic efficacy and anti-aging activity of a dietary supplement containing sulforaphane (SFN), a sulfur-isothiocyanate present in broccoli, combined with the patented extract Fernblock® XP (FB), obtained from the tropical fern Polypodium leucotomos. We evaluated the effect of SFN and FB, alone or in combination, on migration ability, matrix metalloproteinases (MMP) production, neoangiogenic potential and inflammasome activation in human WM115 and WM266-4 melanoma cells. Moreover, the effects on MMPs and reactive oxygen species production, and IL-1β secretion were studied in human normal keratinocytes. The SFN/FB combination inhibited melanoma cell migration in vitro, MMP-1, -2, -3, and -9 production, inflammasome activation and IL-1β secretion more efficiently than each individual compound did. In normal keratinocytes, SFN/FB was more efficient than SFN or FB alone in inhibiting MMP-1 and -3 production and IL-1β secretion in the presence of a pro-inflammatory stimulus such as TNF-α. The potential use of SFN/FB based supplements for the prevention of skin aging and as adjuvants in the treatment of advanced melanoma is suggested.
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Yang G, Lee HE, Moon SJ, Ko KM, Koh JH, Seok JK, Min JK, Heo TH, Kang HC, Cho YY, Lee HS, Fitzgerald KA, Lee JY. Direct Binding to NLRP3 Pyrin Domain as a Novel Strategy to Prevent NLRP3-Driven Inflammation and Gouty Arthritis. Arthritis Rheumatol 2020; 72:1192-1202. [PMID: 32134203 DOI: 10.1002/art.41245] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 02/27/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The NLRP3 inflammasome is closely linked to the pathophysiology of a wide range of inflammatory diseases. This study was undertaken to identify small molecules that directly bind to NLRP3 in order to develop pharmacologic interventions for NLRP3-related diseases. METHODS A structure-based virtual screening analysis was performed with ~62,800 compounds to select efficient NLRP3 inhibitors. The production of caspase 1-p10 and interleukin-1β (IL-1β) was measured by immunoblotting and enzyme-linked immunosorbent assay to examine NLRP3 inflammasome activation. Two gouty arthritis models and an air pouch inflammation model induced by monosodium urate monohydrate (MSU) crystal injection were used for in vivo experiments. Primary synovial fluid cells from gout patients were used to determine the relevance of NLRP3 inflammasome inhibition in human gout. RESULTS Beta-carotene (provitamin A) suppressed the NLRP3 inflammasome activation induced by various activators, including MSU crystals, in mouse bone marrow-derived primary macrophages (P < 0.05). Surface plasmon resonance analysis demonstrated the direct binding of β-carotene to the pyrin domain (PYD) of NLRP3 (KD = 3.41 × 10-6 ). Molecular modeling and mutation assays revealed the interaction mode between β-carotene and the NLRP3 PYD. Inflammatory symptoms induced by MSU crystals were attenuated by oral administration of β-carotene in gouty arthritis mouse models (P < 0.05), correlating with its suppressive effects on the NLRP3 inflammasome in inflamed tissues. Furthermore, β-carotene reduced IL-1β secretion from human synovial fluid cells isolated from gout patients (P < 0.05), showing its inhibitory efficacy in human gout. CONCLUSION Our results present β-carotene as a selective and direct inhibitor of NLRP3, and the binding of β-carotene to NLRP3 PYD as a novel pharmacologic strategy to combat NLRP3 inflammasome-driven diseases, including gouty arthritis.
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Affiliation(s)
- Gabsik Yang
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Hye E Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Su-Jin Moon
- St. Mary's Hospital, Uijeongbu, Republic of Korea, and The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyung M Ko
- St. Mary's Hospital, Bucheon, Republic of Korea, and The Catholic University of Korea, Seoul, Republic of Korea
| | - Jung H Koh
- St. Mary's Hospital, Bucheon, Republic of Korea, and The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin K Seok
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Jun-Ki Min
- St. Mary's Hospital, Bucheon, Republic of Korea, and The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Hwe Heo
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Han C Kang
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Yong-Yeon Cho
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
| | - Hye S Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
| | | | - Joo Y Lee
- College of Pharmacy, The Catholic University of Korea, Bucheon, Republic of Korea
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Yoshida S, Hagiwara Y, Tsuchiya M, Shinoda M, Koide M, Hatakeyama H, Chaweewannakorn C, Suzuki K, Yano T, Sogi Y, Itaya N, Sekiguchi T, Yabe Y, Sasaki K, Kanzaki M, Itoi E. Involvement of inflammasome activation via elevation of uric acid level in nociception in a mouse model of muscle pain. Mol Pain 2020; 15:1744806919858797. [PMID: 31161887 PMCID: PMC6614954 DOI: 10.1177/1744806919858797] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Muscle pain is a common condition in many diseases and is induced by muscle
overuse. Muscle overuse induces an increase in uric acid, which stimulates the
nucleotide-binding oligomerization domain-like receptor (NLR). This receptor
contains the pyrin domain NLRP-3 inflammasome which when activated, results in
the secretion of potent pro-inflammatory cytokines such as interleukin-1β
(IL-1β). The aim of this study was to investigate the involvement of
inflammasome activation via the elevation of uric acid level in nociception in a
mouse model of muscle pain. The right hind leg muscles of BALB/c mice were
stimulated electrically to induce excessive muscle contraction. The left hind
leg muscles were not stimulated as a control. Mechanical withdrawal thresholds,
levels of uric acid, IL-1β, and NLRP3, caspase-1 activity, and the number of
macrophages were investigated. Furthermore, the effects of xanthine oxidase
inhibitors, such as Brilliant Blue G, caspase-1 inhibitor, and clodronate
liposome, on pain were investigated. In the stimulated muscles, mechanical
withdrawal thresholds decreased, and the levels of uric acid, NLRP3, and IL-1β,
caspase-1 activity, and the number of macrophages increased compared to that in
the non-stimulated muscles. Administration of the inhibitors attenuated
hyperalgesia caused by excessive muscle contraction. These results suggested
that IL-1β secretion and NLRP3 inflammasome activation in macrophages produced
mechanical hyperalgesia by elevating uric acid level, and xanthine oxidase
inhibitors may potentially reduce over-exercised muscle pain.
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Affiliation(s)
- Shinichirou Yoshida
- 1 Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshihiro Hagiwara
- 1 Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Masamichi Shinoda
- 3 Department of Physiology, Nihon University School of Dentistry, Tokyo, Japan
| | - Masashi Koide
- 4 Department of Orthopaedic Surgery, Matsuda Hospital, Sendai, Japan
| | - Hiroyasu Hatakeyama
- 5 Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | | | - Kazuaki Suzuki
- 6 Department of Orthopaedic Surgery, JR Sendai Hospital, Sendai, Japan
| | - Toshihisa Yano
- 1 Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yasuhito Sogi
- 1 Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nobuyuki Itaya
- 6 Department of Orthopaedic Surgery, JR Sendai Hospital, Sendai, Japan
| | - Takuya Sekiguchi
- 7 Department of Orthopaedic Surgery, Iwate Prefectural Central Hospital, Morioka, Japan
| | - Yutaka Yabe
- 1 Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keiichi Sasaki
- 8 Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Makoto Kanzaki
- 5 Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | - Eiji Itoi
- 1 Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
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Yang G, Jang JH, Kim SW, Han SH, Ma KH, Jang JK, Kang HC, Cho YY, Lee HS, Lee JY. Sweroside Prevents Non-Alcoholic Steatohepatitis by Suppressing Activation of the NLRP3 Inflammasome. Int J Mol Sci 2020; 21:ijms21082790. [PMID: 32316419 PMCID: PMC7216241 DOI: 10.3390/ijms21082790] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic steatohepatitis (NASH), a type of non-alcoholic fatty liver disease, is characterized as steatosis and inflammation in the liver. NLRP3 inflammasome activation is associated with NASH pathology. We hypothesized that suppressing the NLRP3 inflammasome could be effective in preventing NASH. We searched substances that could inhibit the activation of the NLRP3 inflammasome and identified sweroside as an NLRP3 inhibitor. We investigated whether sweroside can be applied to prevent the pathological symptoms associated with NASH in a methionine–choline-deficient (MCD) diet-induced NASH mouse model. The activation of the NLRP3 inflammasome was determined by detecting the production of caspase-1 and IL-1β from pro-caspase-1 and pro-IL-1β in primary mouse macrophages and mouse liver. In a NASH model, mice were fed an MCD diet for two weeks with daily intraperitoneal injections of sweroside. Sweroside effectively inhibited NLRP3 inflammasome activation in primary macrophages as shown by a decrease in IL-1β and caspase-1 production. In a MCD diet-induced NASH mouse model, intraperitoneal injection of sweroside significantly reduced serum aspartate transaminase and alanine transaminase levels, hepatic immune cell infiltration, hepatic triglyceride accumulation, and liver fibrosis. The improvement of NASH symptoms by sweroside was accompanied with its inhibitory effects on the hepatic NLRP3 inflammasome as hepatic IL-1β and caspase-1 were decreased. Furthermore, sweroside blocked de novo synthesis of mitochondrial DNA in the liver, contributing to suppression of the NLRP3 inflammasome. These results suggest that targeting the NLRP3 inflammasome with sweroside could be beneficially employed to improve NASH symptoms.
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Affiliation(s)
- Gabsik Yang
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (G.Y.); (J.H.J.); (S.W.K.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
- Department of Pharmacology, College of Korean Medicine, Woosuk University, Jeonbuk 55338, Korea
| | - Joo Hyeon Jang
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (G.Y.); (J.H.J.); (S.W.K.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Sung Wook Kim
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (G.Y.); (J.H.J.); (S.W.K.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Sin-Hee Han
- Department of Herbal Crop Research, National Institute of Horticultural & Herbal Science, Rural Development Administration, Eumsung 27709, Korea; (S.-H.H.); (K.-H.M.); (J.-K.J.)
| | - Kyung-Ho Ma
- Department of Herbal Crop Research, National Institute of Horticultural & Herbal Science, Rural Development Administration, Eumsung 27709, Korea; (S.-H.H.); (K.-H.M.); (J.-K.J.)
| | - Jae-Ki Jang
- Department of Herbal Crop Research, National Institute of Horticultural & Herbal Science, Rural Development Administration, Eumsung 27709, Korea; (S.-H.H.); (K.-H.M.); (J.-K.J.)
| | - Han Chang Kang
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (G.Y.); (J.H.J.); (S.W.K.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Yong-Yeon Cho
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (G.Y.); (J.H.J.); (S.W.K.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Hye Suk Lee
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (G.Y.); (J.H.J.); (S.W.K.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
| | - Joo Young Lee
- BK21plus Team, College of Pharmacy, The Catholic University of Korea, Bucheon 14662, Korea; (G.Y.); (J.H.J.); (S.W.K.); (H.C.K.); (Y.-Y.C.); (H.S.L.)
- Correspondence: ; Tel.: +82-2-2164-4095; Fax: +82-2-2164-4059
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Gong Y, Cao X, Gong L, Li W. Sulforaphane alleviates retinal ganglion cell death and inflammation by suppressing NLRP3 inflammasome activation in a rat model of retinal ischemia/reperfusion injury. Int J Immunopathol Pharmacol 2020; 33:2058738419861777. [PMID: 31266422 PMCID: PMC6610428 DOI: 10.1177/2058738419861777] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
This study aims to study the potentials of sulforaphane (SFN) against retinal
ischemia/reperfusion (I/R) injury. A rat retinal I/R injury method was
established. Retinal thickness change and retinal ganglion cell (RGC) death were
determined using hematoxylin and eosin (H&E) staining and Fluoro-Gold (FG)
labeling. The inflammatory cytokines production and microglia activation were
evaluated by using quantitative real-time polymerase chain reaction (qRT-PCR),
Western blot, and enzyme-linked immunosorbent assay (ELISA). Knockdown NLRP3 was
performed, and the according changes of retinal RGCs were assessed. SFN
administration significantly inhibited I/R and caused retinal thickness change
and prevented RGCs death in retinal I/R model. SFN suppressed inflammatory
cytokines production, microglia activation, and inflammasome activation. In
accordance, NLRP3 knockdown presented the similar inhibitory effect on I/R rats.
This study demonstrates that SFN prevents RGCs death and acts as a potent
neuroprotective modulator in retinal I/R injury, which may be associated with
inhibition of the NLRP3 inflammasome activation.
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Affiliation(s)
- Yuerong Gong
- 1 Department of Ophthalmology, Binzhou Medical University Hospital, Binzhou, China
| | - Xiaoning Cao
- 1 Department of Ophthalmology, Binzhou Medical University Hospital, Binzhou, China
| | - Lei Gong
- 2 Department of Ophthalmology, Jinan Eighth People's Hospital, Jinan, China
| | - Weiguo Li
- 1 Department of Ophthalmology, Binzhou Medical University Hospital, Binzhou, China
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Mariotte A, De Cauwer A, Po C, Abou-Faycal C, Pichot A, Paul N, Aouadi I, Carapito R, Frisch B, Macquin C, Chatelus E, Sibilia J, Armspach JP, Bahram S, Georgel P. A mouse model of MSU-induced acute inflammation in vivo suggests imiquimod-dependent targeting of Il-1β as relevant therapy for gout patients. Am J Cancer Res 2020; 10:2158-2171. [PMID: 32104502 PMCID: PMC7019178 DOI: 10.7150/thno.40650] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/24/2019] [Indexed: 12/11/2022] Open
Abstract
Rationale: The role of Monosodium Urate (MSU) crystals in gout pathophysiology is well described, as is the major impact of IL-1β in the inflammatory reaction that constitutes the hallmark of the disease. However, despite the discovery of the NLRP3 inflammasome and its role as a Pattern Recognition Receptor linking the detection of a danger signal (MSU) to IL-1β secretion in vitro, the precise mechanisms leading to joint inflammation in gout patients are still poorly understood. Methods: Acute urate crystal inflammation was obtained by subcutaneous injections of MSU crystals in mice. Symptoms were followed by scoring, cytokine quantification by ELISA and western blot, gene expression by RT-qPCR and RNAseq; Magnetic Resonance Imaging was also used to assess inflammation. Results: We provide an extensive clinical, biological and molecular characterization of an acute uratic inflammation mouse model which accurately mimics human gout. We report the efficacy of topical imiquimod treatment and its impact on Interferon-dependent down modulation of Il-1β gene expression in this experimental model. Conclusion: Our work reveals several key features of MSU-dependent inflammation and identifies novel therapeutic opportunities for gout patients.
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Coptisine from Coptis chinensis blocks NLRP3 inflammasome activation by inhibiting caspase-1. Pharmacol Res 2019; 147:104348. [DOI: 10.1016/j.phrs.2019.104348] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 06/26/2019] [Accepted: 07/10/2019] [Indexed: 12/20/2022]
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Lee HE, Lee JY, Yang G, Kang HC, Cho YY, Lee HS, Lee JY. Inhibition of NLRP3 inflammasome in tumor microenvironment leads to suppression of metastatic potential of cancer cells. Sci Rep 2019; 9:12277. [PMID: 31439870 PMCID: PMC6706417 DOI: 10.1038/s41598-019-48794-x] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 04/09/2019] [Indexed: 02/07/2023] Open
Abstract
Tumor microenvironment favors tumor cells to promote their growth and metastasis such as migration, invasion, and angiogenesis. IL-1β, one of the inflammatory cytokines released from myeloid cells in tumor microenvironment, plays an important role in development and progress of tumor. The activation of inflammasome is a critical step to secrete mature IL-1β through stepwise reactions to activate capspase-1. Therefore, we investigated whether the inhibition of NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome in macrophages regulated the metastatic potential of tumor cells. NLRP3 inflammasome was activated by ATP in bone marrow-derived primary mouse macrophages. The metastatic potential of mouse melanoma cell line (B16F10) was determined by migration and invasion assays with transwell system. ATP-treated wild-type macrophages increased the migration and invasion of melanoma cells. However, NLRP3- or caspase-1-knockout macrophages exhibited greatly diminished ability to promote the migration and invasion of melanoma cells. In addition, treatment with celastrol, an inhibitor of NLRP3 inflammasome, reduced the potency of macrophages to stimulate migration and invasion of melanoma cells. The results demonstrate that inhibition of the NLRP3 inflammasome in macrophages by genetic deficiency or a pharmacological inhibitor is linked to suppression of the metastatic potential of tumor cells. The results would provide a novel anti-cancer strategy to modulate tumor microenvironment by suppressing NLRP3 inflammasome and consequently reducing IL-1β production.
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Affiliation(s)
- Hye Eun Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Jin Young Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Gabsik Yang
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Han Chang Kang
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Yong-Yeon Cho
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Hye Suk Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Joo Young Lee
- BK21 PLUS Team, College of Pharmacy, The Catholic University of Korea, Bucheon, 14662, Republic of Korea.
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Shin JI, Lee KH, Joo YH, Lee JM, Jeon J, Jung HJ, Shin M, Cho S, Kim TH, Park S, Jeon BY, Jeong H, Lee K, Kang K, Oh M, Lee H, Lee S, Kwon Y, Oh GH, Kronbichler A. Inflammasomes and autoimmune and rheumatic diseases: A comprehensive review. J Autoimmun 2019; 103:102299. [PMID: 31326231 DOI: 10.1016/j.jaut.2019.06.010] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/27/2019] [Accepted: 06/29/2019] [Indexed: 02/07/2023]
Abstract
Inflammasomes are a multi-protein platform forming a part of the innate immune system. Inflammasomes are at standby status and can be activated when needed. Inflammasome activation is an important mechanism for the production of active interleukin (IL)-1β and IL-18, which have important roles to instruct adaptive immunity. Active forms of inflammasomes trigger a series of inflammatory cascades and lead to the differentiation and polarization of naïve T cells and secretion of various cytokines, which can induce various kinds of autoimmune and rheumatic diseases such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), gout, Sjögren's syndrome, Behçet's disease, anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis and IgA vasculitis (former Henoch-Schönlein purpura ). In this review, we summarize studies published on inflammasomes and review their roles in various autoimmune diseases. Understanding of the role of inflammasomes may facilitate the diagnosis of autoimmune diseases and the development of tailored therapies in the future.
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Affiliation(s)
- Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, South Korea; Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, South Korea.
| | - Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, South Korea; Division of Pediatric Nephrology, Severance Children's Hospital, Seoul, South Korea
| | - Yo Han Joo
- Yonsei University College of Medicine, Seoul, South Korea
| | - Jiwon M Lee
- Department of Pediatrics, Chungnam National University Hospital, Daejeon, South Korea
| | - Jaewook Jeon
- Yonsei University College of Medicine, Seoul, South Korea
| | - Hee Jae Jung
- Yonsei University College of Medicine, Seoul, South Korea
| | - Minkyue Shin
- Yonsei University College of Medicine, Seoul, South Korea
| | - Seobum Cho
- Yonsei University College of Medicine, Seoul, South Korea
| | - Tae Hwan Kim
- Yonsei University College of Medicine, Seoul, South Korea
| | - Seonghyuk Park
- Yonsei University College of Medicine, Seoul, South Korea
| | - Bong Yeol Jeon
- Yonsei University College of Medicine, Seoul, South Korea
| | - Hyunwoo Jeong
- Yonsei University College of Medicine, Seoul, South Korea
| | - Kangto Lee
- Yonsei University College of Medicine, Seoul, South Korea
| | - Kyutae Kang
- Yonsei University College of Medicine, Seoul, South Korea
| | - Myungsuk Oh
- Yonsei University College of Medicine, Seoul, South Korea
| | - Hansang Lee
- Yonsei University College of Medicine, Seoul, South Korea
| | - Seungchul Lee
- Yonsei University College of Medicine, Seoul, South Korea
| | - Yeji Kwon
- Yonsei University College of Medicine, Seoul, South Korea
| | - Geun Ho Oh
- Yonsei University College of Medicine, Seoul, South Korea
| | - Andreas Kronbichler
- Department of Internal Medicine IV, Medical University Innsbruck, Innsbruck, Austria
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Phytochemicals as Novel Therapeutic Strategies for NLRP3 Inflammasome-Related Neurological, Metabolic, and Inflammatory Diseases. Int J Mol Sci 2019; 20:ijms20122876. [PMID: 31200447 PMCID: PMC6627634 DOI: 10.3390/ijms20122876] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 12/14/2022] Open
Abstract
Several lines of evidence point out the relevance of nucleotide-binding oligomerization domain leucine-rich repeat and pyrin domain-containing protein 3 (NLRP3) inflammasome as a pivotal player in the pathophysiology of several neurological and psychiatric diseases (i.e., Parkinson's disease (PD), Alzheimer's disease (AD), multiple sclerosis (MS), amyotrophic lateral sclerosis, and major depressive disorder), metabolic disorders (i.e., obesity and type 2 diabetes) and chronic inflammatory diseases (i.e., intestinal inflammation, arthritis, and gout). Intensive research efforts are being made to achieve an integrated view about the pathophysiological role of NLRP3 inflammasome pathways in such disorders. Evidence is also emerging that the pharmacological modulation of NLRP3 inflammasome by phytochemicals could represent a promising molecular target for the therapeutic management of neurological, psychiatric, metabolic, and inflammatory diseases. The present review article has been intended to provide an integrated and critical overview of the available clinical and experimental evidence about the role of NLRP3 inflammasome in the pathophysiology of neurological, psychiatric, metabolic, and inflammatory diseases, including PD, AD, MS, depression, obesity, type 2 diabetes, arthritis, and intestinal inflammation. Special attention has been paid to highlight and critically discuss current scientific evidence on the effects of phytochemicals on NLRP3 inflammasome pathways and their potential in counteracting central neuroinflammation, metabolic alterations, and immune/inflammatory responses in such diseases.
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Abdullaha M, Mohammed S, Ali M, Kumar A, Vishwakarma RA, Bharate SB. Discovery of Quinazolin-4(3 H)-ones as NLRP3 Inflammasome Inhibitors: Computational Design, Metal-Free Synthesis, and in Vitro Biological Evaluation. J Org Chem 2019; 84:5129-5140. [PMID: 30896160 DOI: 10.1021/acs.joc.9b00138] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
NLRP3 inflammasome is an important therapeutic target for a number of human diseases. Herein, computationally designed series of quinazolin-4(3 H)-ones were synthesized using iodine-catalyzed coupling of arylalkynes (or styrenes) with O-aminobenzamides. The key event in this transformation involves the oxidative cleavage of the C-C triple/double bond and the release of formaldehyde. The reaction relies on the C-N bond formation along with the C-C bond cleavage under metal-free conditions. The nitro-substituted quinazolin-4(3 H)-one 2k inhibited NLRP3 inflammasome (IC50 5 μM) via the suppression of IL-1β release from ATP-stimulated J774A.1 cells.
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Broccoli sprouts produce abdominal antinociception but not spasmolytic effects like its bioactive metabolite sulforaphane. Biomed Pharmacother 2018; 107:1770-1778. [DOI: 10.1016/j.biopha.2018.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/22/2018] [Accepted: 09/03/2018] [Indexed: 11/20/2022] Open
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Yang G, Lee HE, Yeon SH, Kang HC, Cho YY, Lee HS, Zouboulis CC, Han SH, Lee JH, Lee JY. Licochalcone A attenuates acne symptoms mediated by suppression of NLRP3 inflammasome. Phytother Res 2018; 32:2551-2559. [PMID: 30281174 DOI: 10.1002/ptr.6195] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 08/22/2018] [Accepted: 08/24/2018] [Indexed: 01/08/2023]
Abstract
Activation of the NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome by Propionibacterium acnes (P. acnes) is critical for inducing inflammation and aggravating the development of acne lesions. We searched for available small-molecule inhibitors of the NLRP3 inflammasome that could be topically administered for the treatment of acne. We found that licochalcone A, a chalconoid isolated from the root of Glycyrrhiza inflate, was an effective inhibitor for P. acnes-induced NLRP3 inflammasome activation. Licochalcone A blocked P. acnes-induced production of caspase-1(p10) and IL-1β in primary mouse macrophages and human SZ95 sebocytes, indicating the suppression of NLRP3 inflammasome. Licochalcone A suppressed P. acnes-induced ASC speck formation and mitochondrial reactive oxygen species. Topical application of licochalcone A to mouse ear skin attenuated P. acnes-induced skin inflammation as shown by histological assessment, ear thickness measurement, and inflammatory gene expression. Licochalcone A reduced caspase-1 activity and IL-1β production in mouse ear injected with P. acnes. This study demonstrated that licochalcone A is effective in the control of P. acnes-induced skin inflammation as an efficient inhibitor for NLRP3 inflammasome. Our study provides a new paradigm for the development of anti-acne therapy via targeting NLRP3 inflammasome.
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Affiliation(s)
- Gabsik Yang
- BK21plus team, College of Pharmacy, The Catholic University of Korea, Bucheon, Korea
| | - Hye Eun Lee
- BK21plus team, College of Pharmacy, The Catholic University of Korea, Bucheon, Korea
| | - Sang Hyeon Yeon
- BK21plus team, College of Pharmacy, The Catholic University of Korea, Bucheon, Korea
| | - Han Chang Kang
- BK21plus team, College of Pharmacy, The Catholic University of Korea, Bucheon, Korea
| | - Yong-Yeon Cho
- BK21plus team, College of Pharmacy, The Catholic University of Korea, Bucheon, Korea
| | - Hye Suk Lee
- BK21plus team, College of Pharmacy, The Catholic University of Korea, Bucheon, Korea
| | - Christos C Zouboulis
- Departments of Dermatology, Venereology, Allergology, and Immunology, Dessau Medical Center, Brandenburg Medical School Theodore Fontane, Dessau, Germany
| | - Sin-Hee Han
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumsung, Korea
| | - Jeong-Hoon Lee
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumsung, Korea
| | - Joo Young Lee
- BK21plus team, College of Pharmacy, The Catholic University of Korea, Bucheon, Korea
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