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Li R, Yang P, Liu B, Ye Z, Zhang P, Li M, Gong Y, Huang Y, Yang L, Li M. Lycium barbarum polysaccharide remodels colon inflammatory microenvironment and improves gut health. Heliyon 2024; 10:e30594. [PMID: 38774318 PMCID: PMC11107222 DOI: 10.1016/j.heliyon.2024.e30594] [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: 07/17/2023] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/24/2024] Open
Abstract
Aim Disturbed intestinal microbiota has been implicated in the inflammatory microenvironment of the colon, which usually results in ulcerative colitis (UC). Given the limitations of these drugs, it is important to explore alternative means of protecting the gut health from UC. This study aimed to investigate the potential of polysaccharides as beneficial nutrients in the regulation of the gut microbiota, which determines the inflammatory microenvironment of the colon. Materials and methods Mice were treated with dextran sulfate sodium (DSS) to evaluate the effects and mechanisms of Lycium barbarum polysaccharide (LBP) in remodeling the inflammatory microenvironment and improving gut health. Body weight and disease activity indices were monitored daily. Hematoxylin and eosin staining was used to analyze colon dynamics. The levels of inflammatory indicators and expression of MUC-2, claudin-1, ZO-1, and G-protein-coupled receptor 5 (TGR5) were determined using assay kits and immunohistochemistry, respectively. 16S rRNA high-throughput sequencing of the intestinal microbiota and liquid chromatography-tandem mass spectrometry for related bile acids were used. Results LBP significantly improved the colonic tissue structure by upregulating MUC-2, claudin-1, and ZO-1 protein expression. The bacterial genus Dubosiella was dominant in healthy mice, but significantly decreased in mice treated with DSS. LBP rehabilitated Dubosiella in the sick guts of DSS mice to a level close to that of healthy mice. The levels of other beneficial bacterial genera Akkermansia and Bifidobacterium were also increased, whereas those of the harmful bacterial genera Turicibacter, Clostridium_sensu_stricto_1, Escherichia-Shigella, and Faecalibaculum decreased. The activity of beneficial bacteria promoted the bile acids lithocholic and deoxycholic acids in mice with UC, which improved the gut barrier function through the upregulation of TGR5. Conclusion The inflammatory microenvironment in the gut is determined by the balance of the gut microbiota. LBP showed great potential as a beneficial nutrient for rehabilitating Dubosiella which is dominant in the gut of healthy mice. Nutrient-related LBP may play an important role in gut health management.
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Affiliation(s)
- Rong Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Ping Yang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Bowen Liu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Ziru Ye
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Puyue Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Mingjian Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Yanju Gong
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Yong Huang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Lan Yang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Min Li
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
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Guo HX, Wang BB, Wu HY, Feng HY, Zhang HY, Gao W, Yuan B. Turtle peptide and its derivative peptide ameliorated DSS-induced ulcerative colitis by inhibiting inflammation and modulating the composition of the gut microbiota. Int Immunopharmacol 2024; 132:112024. [PMID: 38608475 DOI: 10.1016/j.intimp.2024.112024] [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: 01/16/2024] [Revised: 03/13/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
Ulcerative colitis (UC) is a recurrent intestinal disease with an increasing incidence worldwide that seriously affects the life of patients. Turtle peptide (TP) is a bioactive peptide extracted from turtles that has anti-inflammatory, antioxidant and anti-aging properties. However, studies investigating the effect of TP on the progression of UC are lacking. The aim of this study was to investigate effects and underlying mechanisms of TP and its derivative peptide GPAGPIGPV (GP-9) in alleviating UC in mice. The results showed that 500 mg/kg TP treatment significantly ameliorated colitis symptoms and oxidative stress in UC mice. TP alleviated intestinal barrier damage in UC mice by promoting mucosal repair and increasing the expression of tight junction proteins (ZO1, occludin and claudin-1). TP also modulated the composition of the gut microbiota by increasing the abundance of the beneficial bacteria Anaerotignum, Prevotellaceae_UCG-001, Alistipes, and Lachno-spiraceae_NK4A136_group and decreasing the abundance of the harmful bacteria Prevotella_9 and Parasutterella. Furthermore, we characterized the peptide composition of TP and found that GP-9 ameliorated the symptoms of dextran sodium sulfate (DSS)-induced colitis in mice by inhibiting the TLR4/NF-κB signaling pathway. In conclusion, TP and its derivative peptides ameliorated DSS-induced ulcerative colitis by inhibiting the expression of inflammatory factors and modulating the composition of the intestinal microbiota; this study provides a theoretical basis for the application of TP and its derivative peptides for their anti-inflammatory activity.
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Affiliation(s)
- Hai-Xiang Guo
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, Jilin, China.
| | - Bing-Bing Wang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, Jilin, China.
| | - Hong-Yu Wu
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, Jilin, China; Jilin Academy of Agricultural Sciences, Jilin 132101, Jilin, China.
| | - Hao-Yuan Feng
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, Jilin, China.
| | - Hong-Yi Zhang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, Jilin, China.
| | - Wei Gao
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, Jilin, China.
| | - Bao Yuan
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun 130062, Jilin, China.
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Xu Z, Kombe Kombe AJ, Deng S, Zhang H, Wu S, Ruan J, Zhou Y, Jin T. NLRP inflammasomes in health and disease. MOLECULAR BIOMEDICINE 2024; 5:14. [PMID: 38644450 PMCID: PMC11033252 DOI: 10.1186/s43556-024-00179-x] [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: 01/01/2024] [Accepted: 03/20/2024] [Indexed: 04/23/2024] Open
Abstract
NLRP inflammasomes are a group of cytosolic multiprotein oligomer pattern recognition receptors (PRRs) involved in the recognition of pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs) produced by infected cells. They regulate innate immunity by triggering a protective inflammatory response. However, despite their protective role, aberrant NLPR inflammasome activation and gain-of-function mutations in NLRP sensor proteins are involved in occurrence and enhancement of non-communicating autoimmune, auto-inflammatory, and neurodegenerative diseases. In the last few years, significant advances have been achieved in the understanding of the NLRP inflammasome physiological functions and their molecular mechanisms of activation, as well as therapeutics that target NLRP inflammasome activity in inflammatory diseases. Here, we provide the latest research progress on NLRP inflammasomes, including NLRP1, CARD8, NLRP3, NLRP6, NLRP7, NLRP2, NLRP9, NLRP10, and NLRP12 regarding their structural and assembling features, signaling transduction and molecular activation mechanisms. Importantly, we highlight the mechanisms associated with NLRP inflammasome dysregulation involved in numerous human auto-inflammatory, autoimmune, and neurodegenerative diseases. Overall, we summarize the latest discoveries in NLRP biology, their forming inflammasomes, and their role in health and diseases, and provide therapeutic strategies and perspectives for future studies about NLRP inflammasomes.
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Affiliation(s)
- Zhihao Xu
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China
| | - Arnaud John Kombe Kombe
- Laboratory of Structural Immunology, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Shasha Deng
- Laboratory of Structural Immunology, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, China
| | - Hongliang Zhang
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China
| | - Songquan Wu
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China
| | - Jianbin Ruan
- Department of Immunology, University of Connecticut Health Center, Farmington, 06030, USA.
| | - Ying Zhou
- Department of Obstetrics and Gynecology, Core Facility Center, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, Anhui, China.
| | - Tengchuan Jin
- Center of Disease Immunity and Intervention, College of Medicine, Lishui University, Lishui, 323000, China.
- Laboratory of Structural Immunology, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, China.
- Department of Obstetrics and Gynecology, Core Facility Center, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, Anhui, China.
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, Anhui, China.
- Biomedical Sciences and Health Laboratory of Anhui Province, University of Science & Technology of China, Hefei, 230027, China.
- Clinical Research Hospital of Chinese Academy of Sciences (Hefei), University of Science and Technology of China, Hefei, 230001, China.
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Salem MB, El-Lakkany NM, Seif el-Din SH, Hammam OA, Samir S. Diosmin alleviates ulcerative colitis in mice by increasing Akkermansia muciniphila abundance, improving intestinal barrier function, and modulating the NF-κB and Nrf2 pathways. Heliyon 2024; 10:e27527. [PMID: 38500992 PMCID: PMC10945203 DOI: 10.1016/j.heliyon.2024.e27527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/20/2024] Open
Abstract
Ulcerative colitis is a common type of inflammatory bowel disease that affects millions of individuals around the world. Traditional UC treatment has focused on suppressing immune responses rather than treating the underlying causes of UC, which include oxidative stress, inflammation, and microbiota dysbiosis. Diosmin (DIO), a naturally occurring flavonoid, possesses antioxidant and anti-inflammatory properties. This study aimed to assess the efficacy of DIO in treating dextran-sulfate sodium (DSS)-induced colitis, and to investigate some of its underlying mechanisms, with an emphasis on Akkermansia muciniphila abundance, inflammatory markers, and intestinal barrier function. C57BL/6 mice were given 4% (w/v) DSS to induce colitis. DSS-induced mice were administered DIO (100 and 200 mg/kg) or sulfasalazine orally for 7 days. Every day, the disease activity index (DAI) was determined by recording body weight, diarrhea, and bloody stool. Changes in fecal A. muciniphila abundance, colonic MUC1 and MUC2 expression, as well as oxidative stress and inflammatory markers were all assessed. Histopathological changes, colonic PIK3PR3 and ZO-1 levels, and immunohistochemical examinations of occludin and claudin-1, were investigated. DIO administration resulted in a dose-dependent decrease in DAI, as well as increase in A. muciniphila abundance and MUC2 expression while decreasing MUC1 expression. DIO also dramatically reduced colonic oxidative stress and inflammation by regulating the NF-κB and Nrf2 cascades, restored intestinal barrier integrity by inhibiting PIK3R3 and inducing ZO-1, and improved occludin/claudin-1 gene expression and immunostaining. This study provides the first evidence that DIO preserves intestinal barrier integrity and increases A. muciniphila abundance in DSS-induced colitis. However, more research is required to explore the impact of DIO on the overall composition and diversity of the gut microbiota. Likewise, it will be important to fully understand the molecular mechanisms by which A. muciniphila maintains intestinal barrier function and its potential use as an adjuvant in the treatment of UC.
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Affiliation(s)
- Maha Badr Salem
- Department of Pharmacology, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, Giza, 12411, Egypt
| | - Naglaa Mohamed El-Lakkany
- Department of Pharmacology, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, Giza, 12411, Egypt
| | - Sayed Hassan Seif el-Din
- Department of Pharmacology, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, Giza, 12411, Egypt
| | - Olfat Ali Hammam
- Department of Pathology, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, Giza, 12411, Egypt
| | - Safia Samir
- Department of Biochemistry and Molecular Biology, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, Giza, 12411, Egypt
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5
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Krajewski PK, Tsoukas M, Szepietowski JC. Pathological and Therapeutical Implications of Pyroptosis in Psoriasis and Hidradenitis Suppurativa: A Narrative Review. Curr Issues Mol Biol 2024; 46:663-676. [PMID: 38248345 PMCID: PMC10814322 DOI: 10.3390/cimb46010043] [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: 12/14/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/23/2024] Open
Abstract
This manuscript explores the role of pyroptosis, an inflammatory programmed cell death, in the pathogenesis of two chronic dermatoses, psoriasis and hidradenitis suppurativa (HS). The diseases, though clinically diverse, share common pathogenetic pathways involving the unbalanced interaction between the adaptive and innate immune systems. This review focuses on the molecular changes in psoriatic and HS skin, emphasizing the activation of dendritic cells, secretion of interleukins (IL-17, IL-22, and TNF-α), and the involvement of inflammasomes, particularly NLRP3. This manuscript discusses the role of caspases, especially caspase-1, in driving pyroptosis and highlights the family of gasdermins (GSDMs) as key players in the formation of pores leading to cell rupture and the release of proinflammatory signals. This study delves into the potential therapeutic implications of targeting pyroptosis in psoriasis and HS, examining existing medications like biologics and Janus kinase inhibitors. It also reviews the current limitations and challenges in developing therapies that selectively target pyroptosis. Additionally, the manuscript explores the role of pyroptosis in various inflammatory disorders associated with psoriasis and HS, such as inflammatory bowel disease, diabetes mellitus, and cardiovascular disorders. The review concludes by emphasizing the need for further research to fully elucidate the pathomechanisms of these dermatoses and develop effective, targeted therapies.
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Affiliation(s)
- Piotr K. Krajewski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Chalubinskiego 1, 50-368 Wroclaw, Poland;
| | - Maria Tsoukas
- Department of Dermatology, University of Illinois at Chicago, Chicago, IL 60607, USA;
| | - Jacek C. Szepietowski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Chalubinskiego 1, 50-368 Wroclaw, Poland;
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6
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Lou S, Wu M, Cui S. Targeting NLRP3 Inflammasome: Structure, Function, and Inhibitors. Curr Med Chem 2024; 31:2021-2051. [PMID: 38310392 DOI: 10.2174/0109298673289984231127062528] [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: 10/29/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 02/05/2024]
Abstract
Inflammasomes are multimeric protein complexes that can detect various physiological stimuli and danger signals. As a result, they perform a crucial function in the innate immune response. The NLRP3 inflammasome, as a vital constituent of the inflammasome family, is significant in defending against pathogen invasion and preserving cellhomeostasis. NLRP3 inflammasome dysregulation is connected to various pathological conditions, including inflammatory diseases, cancer, and cardiovascular and neurodegenerative diseases. This profile makes NLRP3 an applicable target for treating related diseases, and therefore, there are rising NLRP3 inhibitors disclosed for therapy. Herein, we summarized the updated advances in the structure, function, and inhibitors of NLRP3 inflammasome. Moreover, we aimed to provide an overview of the existing products and future directions for drug research and development.
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Affiliation(s)
- Shengying Lou
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Department of Pharmacy, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, China
| | - Miaolian Wu
- Department of Pharmacy, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
- Jinhua Institute of Zhejiang University, Jinhua, China
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7
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Wang L, Zhu Y, Zhang L, Guo L, Wang X, Pan Z, Jiang X, Wu F, He G. Mechanisms of PANoptosis and relevant small-molecule compounds for fighting diseases. Cell Death Dis 2023; 14:851. [PMID: 38129399 PMCID: PMC10739961 DOI: 10.1038/s41419-023-06370-2] [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: 07/04/2023] [Revised: 11/10/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Pyroptosis, apoptosis, and necroptosis are mainly programmed cell death (PCD) pathways for host defense and homeostasis. PANoptosis is a newly distinct inflammatory PCD pathway that is uniquely regulated by multifaceted PANoptosome complexes and highlights significant crosstalk and coordination among pyroptosis (P), apoptosis (A), and/or necroptosis(N). Although some studies have focused on the possible role of PANpoptosis in diseases, the pathogenesis of PANoptosis is complex and underestimated. Furthermore, the progress of PANoptosis and related agonists or inhibitors in disorders has not yet been thoroughly discussed. In this perspective, we provide perspectives on PANoptosome and PANoptosis in the context of diverse pathological conditions and human diseases. The treatment targeting on PANoptosis is also summarized. In conclusion, PANoptosis is involved in plenty of disorders including but not limited to microbial infections, cancers, acute lung injury/acute respiratory distress syndrome (ALI/ARDS), ischemia-reperfusion, and organic failure. PANoptosis seems to be a double-edged sword in diverse conditions, as PANoptosis induces a negative impact on treatment and prognosis in disorders like COVID-19 and ALI/ARDS, while PANoptosis provides host protection from HSV1 or Francisella novicida infection, and kills cancer cells and suppresses tumor growth in colorectal cancer, adrenocortical carcinoma, and other cancers. Compounds and endogenous molecules focused on PANoptosis are promising therapeutic strategies, which can act on PANoptosomes-associated members to regulate PANoptosis. More researches on PANoptosis are needed to better understand the pathology of human conditions and develop better treatment.
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Affiliation(s)
- Lian Wang
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Yanghui Zhu
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Lu Zhang
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Linghong Guo
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Xiaoyun Wang
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Zhaoping Pan
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Xian Jiang
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China.
| | - Fengbo Wu
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China.
| | - Gu He
- Department of Dermatology & Venerology and Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, P. R. China.
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China.
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Shaik MG, Joshi SV, Akunuri R, Rana P, Rahman Z, Polomoni A, Yaddanapudi VM, Dandekar MP, Srinivas N. Small molecule inhibitors of NLRP3 inflammasome and GSK-3β in the management of traumatic brain injury: A review. Eur J Med Chem 2023; 259:115718. [PMID: 37573828 DOI: 10.1016/j.ejmech.2023.115718] [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: 11/10/2022] [Revised: 07/28/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
Traumatic brain injury (TBI) is a debilitating mental condition which causes physical disability and morbidity worldwide. TBI may damage the brain by direct injury that subsequently triggers a series of neuroinflammatory events. The activation of NLRP3 inflammasome and dysregulated host immune system has been documented in various neurological disorders such as TBI, ischemic stroke and multiple sclerosis. The activation of NLRP3 post-TBI increases the production of pro-inflammatory cytokines and caspase-1, which are major drivers of neuroinflammation and apoptosis. Similarly, GSK-3β regulates apoptosis through tyrosine kinase and canonical Wnt signalling pathways. Thus, therapeutic targeting of NLRP3 inflammasome and GSK-3β has emerged as promising strategies for regulating the post-TBI neuroinflammation and neurobehavioral disturbances. In this review, we discuss the identification & development of several structurally diverse and pharmacologically interesting small molecule inhibitors for targeting the NLRP3 inflammasome and GSK-3β in the management of TBI.
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Affiliation(s)
- Mahammad Ghouse Shaik
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Swanand Vinayak Joshi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Ravikumar Akunuri
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India; Ellen and Ronald Caplan Cancer Center, The Wistar Institute, Philadelphia, PA, 19104, USA
| | - Preeti Rana
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Ziaur Rahman
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, 500 037, India
| | - Anusha Polomoni
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Venkata Madhavi Yaddanapudi
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India
| | - Manoj P Dandekar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, Telangana, 500 037, India.
| | - Nanduri Srinivas
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500 037, India.
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Arrè V, Scialpi R, Centonze M, Giannelli G, Scavo MP, Negro R. The 'speck'-tacular oversight of the NLRP3-pyroptosis pathway on gastrointestinal inflammatory diseases and tumorigenesis. J Biomed Sci 2023; 30:90. [PMID: 37891577 PMCID: PMC10612184 DOI: 10.1186/s12929-023-00983-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/23/2023] [Indexed: 10/29/2023] Open
Abstract
The NLRP3 inflammasome is an intracellular sensor and an essential component of the innate immune system involved in danger recognition. An important hallmark of inflammasome activation is the formation of a single supramolecular punctum, known as a speck, per cell, which is the site where the pro-inflammatory cytokines IL-1β and IL-18 are converted into their bioactive form. Speck also provides the platform for gasdermin D protein activation, whose N-terminus domain perforates the plasma membrane, allowing the release of mature cytokines alongside with a highly inflammatory form of cell death, namely pyroptosis. Although controlled NLRP3 inflammasome-pyroptosis pathway activation preserves mucosal immunity homeostasis and contributes to host defense, a prolonged trigger is deleterious and could lead, in genetically predisposed subjects, to the onset of inflammatory bowel disease, including Crohn's disease and ulcerative colitis, as well as to gastrointestinal cancer. Experimental evidence shows that the NLRP3 inflammasome has both protective and pathogenic abilities. In this review we highlight the impact of the NLRP3-pyroptosis axis on the pathophysiology of the gastrointestinal tract at molecular level, focusing on newly discovered features bearing pro- and anti-inflammatory and neoplastic activity, and on targeted therapies tested in preclinical and clinical trials.
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Affiliation(s)
- Valentina Arrè
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Rosanna Scialpi
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Matteo Centonze
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Gianluigi Giannelli
- Scientific Direction, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Maria Principia Scavo
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy
| | - Roberto Negro
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, 70013, Castellana Grotte, BA, Italy.
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10
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Wen J, Xuan B, Liu Y, Wang L, He L, Meng X, Zhou T, Wang Y. NLRP3 inflammasome-induced pyroptosis in digestive system tumors. Front Immunol 2023; 14:1074606. [PMID: 37081882 PMCID: PMC10110858 DOI: 10.3389/fimmu.2023.1074606] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 03/03/2023] [Indexed: 04/07/2023] Open
Abstract
Programmed cell death (PCD) refers to cell death in a manner that depends on specific genes encoding signals or activities. PCD includes apoptosis, pyroptosis, autophagy and necrosis (programmed necrosis). Among these mechanisms, pyroptosis is mediated by the gasdermin family and is accompanied by inflammatory and immune responses. When pathogens or other danger signals are detected, cytokine action and inflammasomes (cytoplasmic multiprotein complexes) lead to pyroptosis. The relationship between pyroptosis and cancer is complex and the effect of pyroptosis on cancer varies in different tissue and genetic backgrounds. On the one hand, pyroptosis can inhibit tumorigenesis and progression; on the other hand, pyroptosis, as a pro-inflammatory death, can promote tumor growth by creating a microenvironment suitable for tumor cell growth. Indeed, the NLRP3 inflammasome is known to mediate pyroptosis in digestive system tumors, such as gastric cancer, pancreatic ductal adenocarcinoma, gallbladder cancer, oral squamous cell carcinoma, esophageal squamous cell carcinoma, in which a pyroptosis-induced cellular inflammatory response inhibits tumor development. The same process occurs in hepatocellular carcinoma and some colorectal cancers. The current review summarizes mechanisms and pathways of pyroptosis, outlining the involvement of NLRP3 inflammasome-mediated pyroptosis in digestive system tumors.
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Affiliation(s)
- Jiexia Wen
- Department of Central Laboratory, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Bin Xuan
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Yang Liu
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Liwei Wang
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Li He
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Xiangcai Meng
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Tao Zhou
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
| | - Yimin Wang
- Department of Central Laboratory, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
- Department of General Surgery, The First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, Hebei, China
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11
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Zhang Z, Li X, Wang Y, Wei Y, Wei X. Involvement of inflammasomes in tumor microenvironment and tumor therapies. J Hematol Oncol 2023; 16:24. [PMID: 36932407 PMCID: PMC10022228 DOI: 10.1186/s13045-023-01407-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/08/2023] [Indexed: 03/19/2023] Open
Abstract
Inflammasomes are macromolecular platforms formed in response to damage-associated molecular patterns (DAMPs) and pathogen-associated molecular patterns, whose formation would cause maturation of interleukin-1 (IL-1) family members and gasdermin D (GSDMD), leading to IL-1 secretion and pyroptosis respectively. Several kinds of inflammasomes detecting different types of dangers have been found. The activation of inflammasomes is regulated at both transcription and posttranscription levels, which is crucial in protecting the host from infections and sterile insults. Present findings have illustrated that inflammasomes are involved in not only infection but also the pathology of tumors implying an important link between inflammation and tumor development. Generally, inflammasomes participate in tumorigenesis, cell death, metastasis, immune evasion, chemotherapy, target therapy, and radiotherapy. Inflammasome components are upregulated in some tumors, and inflammasomes can be activated in cancer cells and other stromal cells by DAMPs, chemotherapy agents, and radiation. In some cases, inflammasomes inhibit tumor progression by initiating GSDMD-mediated pyroptosis in cancer cells and stimulating IL-1 signal-mediated anti-tumor immunity. However, IL-1 signal recruits immunosuppressive cell subsets in other cases. We discuss the conflicting results and propose some possible explanations. Additionally, we also summarize interventions targeting inflammasome pathways in both preclinical and clinical stages. Interventions targeting inflammasomes are promising for immunotherapy and combination therapy.
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Affiliation(s)
- Ziqi Zhang
- grid.13291.380000 0001 0807 1581Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, 610041 Sichuan People’s Republic of China
| | - Xue Li
- grid.13291.380000 0001 0807 1581Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, 610041 Sichuan People’s Republic of China
| | - Yang Wang
- grid.13291.380000 0001 0807 1581Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, 610041 Sichuan People’s Republic of China
| | - Yuquan Wei
- grid.13291.380000 0001 0807 1581Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, 610041 Sichuan People’s Republic of China
| | - Xiawei Wei
- grid.13291.380000 0001 0807 1581Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, 610041 Sichuan People’s Republic of China
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12
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Yu T, Lu X, Liang Y, Yang L, Yin Y, Chen H. Ononin alleviates DSS-induced colitis through inhibiting NLRP3 inflammasome via triggering mitophagy. Immun Inflamm Dis 2023; 11:e776. [PMID: 36840499 PMCID: PMC9910166 DOI: 10.1002/iid3.776] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Ononin, a flavonoid isolated from Astragalus membranaceus root, is the active ingredient of A. membranaceus and has potential anti-inflammatory properties, but its effect on colitis is unclear. AIMS This study aimed to explore the anticolitis effect of Ononin by establishing a colitis model in mice induced by dextran sulfate sodium (DSS). METHODS Male C57BL/6 mice were provided DSS, then treated with Ononin (10, 20, 40 mg/kg) or 5-ASA (40 mg/kg). The colitis symptoms were observed, the disease activity index (DAI) score were recorded daily, and colonic inflammation was evaluted by histopathological scoring. The expression of cytokines, inflammatory mediators, and mitophagy/NLRP3 inflammasome-related proteins were measured. RESULTS Ononin significantly alleviated weight loss and colon shortening in mice with colitis (p < .01). Moreover, Ononin decreased the production of inflammatory cytokines and mediators associated with colitis (p < .05). In addition, Ononin inhibited macrophages infiltration and reduced caspase-1 activation in colitis mice. Caspase-1 activation is closely related to the NLRP3 inflammasome. Therefore, we investigated the effect of Ononin on NLRP3 inflammasome in vitro. The relevant results confirmed that Ononin inhibited NLRP3 inflammasome activation and inhibited mitochondrial damage (p < .05). Further studies revealed that Ononin inhibited mitochondrial damage through triggering mitophagy (p < .05). CONCLUSION Ononin alleviates DSS-induced colitis by activating mitophagy to inhibit NLRP3 inflammasome.
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Affiliation(s)
- Ting Yu
- Department of Gastroenterology, Zhongda Hospital, School of MedicineSoutheast UniversityNanjingJiangsuPeople's Republic of China
| | - Xuejia Lu
- Department of Gastroenterology, Zhongda Hospital, School of MedicineSoutheast UniversityNanjingJiangsuPeople's Republic of China
| | - Yan Liang
- Department of Gastroenterology, Zhongda Hospital, School of MedicineSoutheast UniversityNanjingJiangsuPeople's Republic of China
| | - Lin Yang
- Department of Gastroenterology, Zhongda Hospital, School of MedicineSoutheast UniversityNanjingJiangsuPeople's Republic of China
| | - Yuehan Yin
- China HuaYou Group CorporationBeijingPeople's Republic of China
| | - Hong Chen
- Department of Gastroenterology, Zhongda Hospital, School of MedicineSoutheast UniversityNanjingJiangsuPeople's Republic of China
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13
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Min AK, Fortune T, Rodriguez N, Hedge E, Swartz TH. Inflammasomes as mediators of inflammation in HIV-1 infection. Transl Res 2023; 252:1-8. [PMID: 35917903 PMCID: PMC10160852 DOI: 10.1016/j.trsl.2022.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/23/2022] [Accepted: 07/27/2022] [Indexed: 01/14/2023]
Abstract
Human immunodeficiency virus type 1 (HIV-1) infection is a chronic disease without a known cure. The advent of effective antiretroviral therapy (ART) has enabled people with HIV (PWH) to have significantly prolonged life expectancies. As a result, morbidity and mortality associated with HIV-1 infection have declined considerably. However, these individuals experience chronic systemic inflammation whose multifaceted etiology is associated with other numerous comorbidities. Inflammasomes are vital mediators that contribute to inflammatory signaling in HIV-1 infection. Here, we provide an overview of the inflammatory pathway that underlies HIV-1 infection, explicitly highlighting the role of the NLRP3 inflammasome. We also delineate the current literature on inflammasomes and the therapeutic targeting strategies aimed at the NLRP3 inflammasome to moderate HIV-1 infection-associated inflammation. Here we describe the NLRP3 inflammasome as a key pathway in developing novel therapeutic targets to block HIV-1 replication and HIV-1-associated inflammatory signaling. Controlling the inflammatory pathways is critical in alleviating the morbidities and mortality associated with chronic HIV-1 infection in PWH.
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Affiliation(s)
- Alice K Min
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Trinisia Fortune
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Natalia Rodriguez
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Esha Hedge
- University of South Carolina, Columbia, South Carolina
| | - Talia H Swartz
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York.
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14
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Huang J, Wu T, Zhong Y, Huang J, Kang Z, Zhou B, Zhao H, Liu D. Effect of curcumin on regulatory B cells in chronic colitis mice involving TLR/MyD88 signaling pathway. Phytother Res 2023; 37:731-742. [PMID: 36196887 DOI: 10.1002/ptr.7656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/12/2022] [Accepted: 09/15/2022] [Indexed: 11/09/2022]
Abstract
Curcumin (Cur) is a natural active phenolic compound extracted from the root of Curcuma Longa L. It has anti-inflammatory, anti-tumor and other pharmacological activities, and is commonly used to treat ulcerative colitis (UC). However, it is not clear whether curcumin regulates the function and differentiation of Breg cells to treat UC. In this study, mice with chronic colitis were induced by dextran sulfate sodium (DSS), and treated with curcumin for 12 days. Curcumin effectively improved the body weight, colonic weight, colonic length, decreased colonic weight index and pathological injury score under colonoscopy in mice with chronic colitis, and significantly inhibited the production of IL-1β, IL-6, IL-33, CCL-2, IFN-γ, TNF-α, and promoted the secretion of IL-4, IL-10, IL-13 and IgA. Importantly, curcumin markedly upregulated CD3- CD19+ CD1d+ , CD3- CD19+ CD25+ , CD3- CD19+ Foxp3+ Breg cells level and significantly down-regulated CD3- CD19+ PD-L1+ , CD3- CD19+ tim-1+ , CD3- CD19+ CD27+ Breg cells level. In addition, our results also showed that curcumin observably inhibited TLR2, TLR4, TLR5, MyD88, IRAK4, p-IRAK4, NF-κB P65, IRAK1, TRAF6, TAB1, TAB2, TAK1, MKK3, MKK6, p38MAPK, p-p38MAPK and CREB expression in TLR/MyD88 signaling pathway. These results suggest that curcumin can regulate the differentiation and function of Breg cell to alleviate DSS-induced colitis, which may be realized by inhibiting TLR/MyD88 pathway.
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Affiliation(s)
- Jie Huang
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
| | - Tiantian Wu
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
| | - Youbao Zhong
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China.,Laboratory Animal Research Center for Science and Technology, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
| | - Jiaqi Huang
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
| | - Zengping Kang
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
| | - Bugao Zhou
- Formula-Pattern Research Center, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
| | - Haimei Zhao
- College of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
| | - Duanyong Liu
- Formula-Pattern Research Center, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, People's Republic of China
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15
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Zhang J, Zeng S, Wang P, Chen Y, Zeng C. NLRP3: A Promising Therapeutic Target for Inflammatory Bowel Disease. Curr Drug Targets 2023; 24:1106-1116. [PMID: 37946354 DOI: 10.2174/0113894501255960231101105113] [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: 03/31/2023] [Revised: 08/06/2023] [Accepted: 10/06/2023] [Indexed: 11/12/2023]
Abstract
Inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis, is an intestinal disease with complicated pathological mechanisms. The incidence of IBD has been increasing in recent years, which has a significant negative impact on the lives of patients. Therefore, it is particularly important to find new therapeutic targets and innovative drugs for the development of IBD. Recent studies have revealed that NLRP3 inflammatory vesicles can play an important role in maintaining intestinal homeostasis and sustaining the intestinal immune response in IBD. On the one hand, aberrant activation of NLRP3 inflammatory vesicles may cause excessive immune response by converting caspase-1, proIL-18, and proIL-1β to their active forms and releasing pro-inflammatory cytokines to stimulate the development and progression of IBD, and we can improve IBD by targeting blockade of NLRP3 activation. On the other hand, NLRP3 may also play an enter protective role by maintaining the homeostasis of the intestinal immune system. In this paper, we reviewed the activation mechanism of NLRP3 inflammasome, and the effects of NLRP3 inflammasome activation on IBD are discussed from two different perspectives: pathology and protection. At the same time, we listed the effects of direct inhibitors, indirect inhibitors, and natural inhibitors of NLRP3 inflammasome on IBD in combination with cutting-edge advances and clinical practice results, providing new targets and new ideas for the clinical treatment of IBD.
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Affiliation(s)
- Jiayu Zhang
- Department of Gastroenterology, Digestive Disease Hospital, the First Affiliated Hospital of Nanchang University, Nanchang, China
- Huankui Academy of Nanchang University, Nanchang, China
| | - Shuyan Zeng
- Department of Gastroenterology, Digestive Disease Hospital, the First Affiliated Hospital of Nanchang University, Nanchang, China
- Huankui Academy of Nanchang University, Nanchang, China
| | - Peng Wang
- Department of Gastroenterology, Digestive Disease Hospital, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Youxiang Chen
- Department of Gastroenterology, Digestive Disease Hospital, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Chunyan Zeng
- Department of Gastroenterology, Digestive Disease Hospital, the First Affiliated Hospital of Nanchang University, Nanchang, China
- Huankui Academy of Nanchang University, Nanchang, China
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16
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Jewell S, Herath AM, Gordon R. Inflammasome Activation in Parkinson’s Disease. JOURNAL OF PARKINSON'S DISEASE 2022; 12:S113-S128. [PMID: 35848038 PMCID: PMC9535572 DOI: 10.3233/jpd-223338] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Chronic sterile inflammation and persistent immune activation is a prominent pathological feature of Parkinson’s disease (PD). Inflammasomes are multi-protein intracellular signaling complexes which orchestrate inflammatory responses in immune cells to a diverse range of pathogens and host-derived signals. Widespread inflammasome activation is evident in PD patients at the sites of dopaminergic degeneration as well as in blood samples and mucosal biopsies. Inflammasome activation in the nigrostriatal system is also a common pathological feature in both neurotoxicant and α-synuclein models of PD where dopaminergic degeneration occurs through distinct mechanisms. The NLRP3 (NLR Family Pyrin Domain Containing 3) inflammasome has been shown to be the primary driver of inflammatory neurotoxicity in PD and other neurodegenerative diseases. Chronic NLRP3 inflammasome activation is triggered by pathogenic misfolded α-synuclein aggregates which accumulate and spread over the disease course in PD. Converging lines of evidence suggest that blocking inflammasome activation could be a promising therapeutic strategy for disease modification, with both NLRP3 knockout mice and CNS-permeable pharmacological inhibitors providing robust neuroprotection in multiple PD models. This review summarizes the current evidence and knowledge gaps around inflammasome activation in PD, the pathological mechanisms by which persistent inflammasome activation can drive dopaminergic degeneration and the therapeutic opportunities for disease modification using NLRP3 inhibitors.
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Affiliation(s)
- Shannon Jewell
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Ashane M. Herath
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Richard Gordon
- UQ Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Australia
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17
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Harrison D, Bock MG, Doedens JR, Gabel CA, Holloway MK, Lewis A, Scanlon J, Sharpe A, Simpson ID, Smolak P, Wishart G, Watt AP. Discovery and Optimization of Triazolopyrimidinone Derivatives as Selective NLRP3 Inflammasome Inhibitors. ACS Med Chem Lett 2022; 13:1321-1328. [PMID: 35978696 PMCID: PMC9377005 DOI: 10.1021/acsmedchemlett.2c00242] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/27/2022] [Indexed: 11/29/2022] Open
Abstract
The NLRP3 inflammasome is a multiprotein complex that facilitates activation and release of the proinflammatory cytokines interleukin-1β (IL-1β) and IL-18 in response to infection or endogenous stimuli. It can be inappropriately activated by a range of danger signals resulting in chronic, low-grade inflammation underlying a multitude of diseases, such as Alzheimer's disease, Parkinson's disease, osteoarthritis, and gout. The discovery of potent and specific NLRP3 inhibitors could reduce the burden of several common morbidities. In this study, we identified a weakly potent triazolopyrimidone hit (1) following an in silico modeling exercise. This was optimized to furnish potent and selective small molecule NLRP3 inflammasome inhibitors. Compounds such as NDT-30805 could be useful tool molecules for a scaffold-hopping or pharmacophore generation project or used as leads toward the development of clinical candidates.
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Affiliation(s)
- David Harrison
- NodThera
Ltd., Suite 8, The Mansion, Chesterford
Research Park, Little Chesterford, Saffron Walden, EssexCB10 1XL, United Kingdom
| | - Mark G. Bock
- NodThera
Inc., 430 Bedford Street, Lexington, Massachusetts02420, United States
| | - John R. Doedens
- NodThera
Inc., 454 N 34th Street, Seattle, Washington98103, United States
| | | | | | - Arwel Lewis
- Charles
River Laboratories, Chesterford
Research Park, Little Chesterford, Saffron Walden, EssexCB10 1XL, United Kingdom
| | - Jane Scanlon
- NodThera
Ltd., Suite 8, The Mansion, Chesterford
Research Park, Little Chesterford, Saffron Walden, EssexCB10 1XL, United Kingdom
| | - Andrew Sharpe
- Charles
River Laboratories, Chesterford
Research Park, Little Chesterford, Saffron Walden, EssexCB10 1XL, United Kingdom
| | - Iain D. Simpson
- Charles
River Laboratories, Chesterford
Research Park, Little Chesterford, Saffron Walden, EssexCB10 1XL, United Kingdom
| | - Pamela Smolak
- NodThera
Inc., 454 N 34th Street, Seattle, Washington98103, United States
| | - Grant Wishart
- Charles
River Laboratories, Chesterford
Research Park, Little Chesterford, Saffron Walden, EssexCB10 1XL, United Kingdom
| | - Alan P. Watt
- NodThera
Ltd., Suite 8, The Mansion, Chesterford
Research Park, Little Chesterford, Saffron Walden, EssexCB10 1XL, United Kingdom
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18
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Challagundla N, Saha B, Agrawal-Rajput R. Insights into inflammasome regulation: cellular, molecular, and pathogenic control of inflammasome activation. Immunol Res 2022; 70:578-606. [PMID: 35610534 DOI: 10.1007/s12026-022-09286-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 05/04/2022] [Indexed: 02/07/2023]
Abstract
Maintenance of immune homeostasis is an intricate process wherein inflammasomes play a pivotal role by contributing to innate and adaptive immune responses. Inflammasomes are ensembles of adaptor proteins that can trigger a signal following innate sensing of pathogens or non-pathogens eventuating in the inductions of IL-1β and IL-18. These inflammatory cytokines substantially influence the antigen-presenting cell's costimulatory functions and T helper cell differentiation, contributing to adaptive immunity. As acute and chronic disease conditions may accompany parallel tissue damage, we analyze the critical role of extracellular factors such as cytokines, amyloids, cholesterol crystals, etc., intracellular metabolites, and signaling molecules regulating inflammasome activation/inhibition. We develop an operative framework for inflammasome function and regulation by host cell factors and pathogens. While inflammasomes influence the innate and adaptive immune components' interplay modulating the anti-pathogen adaptive immune response, pathogens may target inflammasome inhibition as a survival strategy. As trapped between health and diseases, inflammasomes serve as promising therapeutic targets and their modus operandi serves as a scientific rationale for devising better therapeutic strategies.
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Affiliation(s)
- Naveen Challagundla
- Immunology lab, Indian Institute of Advanced Research, Gandhinagar, Gujarat, 382007, India
| | - Bhaskar Saha
- National Centre for Cell Science, Lab-5, Ganeshkhind, Pune, Maharashtra, 411007, India
| | - Reena Agrawal-Rajput
- Immunology lab, Indian Institute of Advanced Research, Gandhinagar, Gujarat, 382007, India.
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19
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Narros-Fernández P, Chioua M, Petcu SA, Diez-Iriepa D, Cerrada-Gálvez L, Decouty-Pérez C, Palomino-Antolín A, Ramos E, Farré-Alins V, López-Rodríguez AB, Romero A, Marco-Contelles J, Egea J. Synthesis and Pharmacological Evaluation of New N-Sulfonylureas as NLRP3 Inflammasome Inhibitors: Identification of a Hit Compound to Treat Gout. J Med Chem 2022; 65:6250-6260. [DOI: 10.1021/acs.jmedchem.2c00149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Paloma Narros-Fernández
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Calle Maestro Vives 2, 28009 Madrid, Spain
- IIS-Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Instituto Teófilo Hernando, UAM, Madrid 28029, Spain
| | - Mourad Chioua
- Laboratory of Medicinal Chemistry (IQOG, CSIC), Juan de La Cierva 3, Madrid 28006, Spain
| | - Sonia A. Petcu
- Laboratory of Medicinal Chemistry (IQOG, CSIC), Juan de La Cierva 3, Madrid 28006, Spain
| | - Daniel Diez-Iriepa
- Laboratory of Medicinal Chemistry (IQOG, CSIC), Juan de La Cierva 3, Madrid 28006, Spain
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Ctra. Madrid-Barcelona km 33.6, Alcalá de Henares 28871, Spain
| | - Laura Cerrada-Gálvez
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Calle Maestro Vives 2, 28009 Madrid, Spain
- IIS-Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Instituto Teófilo Hernando, UAM, Madrid 28029, Spain
| | - Céline Decouty-Pérez
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Calle Maestro Vives 2, 28009 Madrid, Spain
- IIS-Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Instituto Teófilo Hernando, UAM, Madrid 28029, Spain
| | - Alejandra Palomino-Antolín
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Calle Maestro Vives 2, 28009 Madrid, Spain
- IIS-Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Instituto Teófilo Hernando, UAM, Madrid 28029, Spain
| | - Eva Ramos
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid 28040, Spain
| | - Víctor Farré-Alins
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Calle Maestro Vives 2, 28009 Madrid, Spain
- IIS-Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Instituto Teófilo Hernando, UAM, Madrid 28029, Spain
| | - Ana Belén López-Rodríguez
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Calle Maestro Vives 2, 28009 Madrid, Spain
- IIS-Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Instituto Teófilo Hernando, UAM, Madrid 28029, Spain
| | - Alejandro Romero
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, Madrid 28040, Spain
| | - José Marco-Contelles
- Laboratory of Medicinal Chemistry (IQOG, CSIC), Juan de La Cierva 3, Madrid 28006, Spain
| | - Javier Egea
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Calle Maestro Vives 2, 28009 Madrid, Spain
- IIS-Hospital Universitario de La Princesa, 28006 Madrid, Spain
- Departamento de Farmacología y Terapéutica, Facultad de Medicina, Instituto Teófilo Hernando, UAM, Madrid 28029, Spain
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Zou Q, Feng J, Li T, Cheng G, Wang W, Rao G, He H, Li Y. Antioxidation and anti-inflammatory actions of the extract of Nitraria Tangutorum Bobr. fruits reduce the severity of ulcerative colitis in a dextran sulphate sodium-induced mice model. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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21
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The role of the inflammasome and its related pathways in ovarian cancer. Clin Transl Oncol 2022; 24:1470-1477. [PMID: 35288840 DOI: 10.1007/s12094-022-02805-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 02/03/2022] [Indexed: 10/18/2022]
Abstract
Ovarian cancer (OC) is the most lethal tumor of the female reproductive tract and one of the most prevalent causes of death among female cancer patients. The absence of suitable procedures for early diagnosis, chemoresistance, and limited surgical debulking are all contributing to poor survival in patients. Despite aggressive treatments, the majority of patients have a recurrence within 16-22 months. Inflammasomes are multimeric protein complexes that play a major role in the innate immune system and inflammation. The overexpression of inflammasome-related pathways, including NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3), Absent in melanoma 2 (AIM2), caspase-1, and Interleukin (IL)-1 have been reported in OC patients and in vitro cell lines. Therefore, inflammasome-related genes and protein might have a role in OC pathogenesis. Considering the potential relationship between inflammasome and OC, this study aimed to provide a literature-based review to explain the role of inflammasome and inflammation in cancer progression in OC.
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Charan HV, Dwivedi DK, Khan S, Jena G. Mechanisms of NLRP3 inflammasome-mediated hepatic stellate cell activation: therapeutic potential for liver fibrosis. Genes Dis 2022; 10:480-494. [DOI: 10.1016/j.gendis.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 11/09/2021] [Accepted: 12/01/2021] [Indexed: 01/18/2023] Open
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Kinra M, Nampoothiri M, Arora D, Mudgal J. Reviewing the importance of TLR-NLRP3-pyroptosis pathway and mechanism of experimental NLRP3 inflammasome inhibitors. Scand J Immunol 2021; 95:e13124. [PMID: 34861056 DOI: 10.1111/sji.13124] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 11/17/2021] [Accepted: 12/01/2021] [Indexed: 12/12/2022]
Abstract
Cells encounter continuous challenges due to tissue insult caused by endogenous and/or exogenous stimuli. Among the mechanisms set in place to counterbalance the tissue insult, innate immunity is always at the forefront. Cells of innate immunity efficiently recognize the 'danger signals' via a specialized set of membrane-bound receptors known as Toll-like receptors. Once this interaction is established, toll-like receptor passes on the responsibility to cytosolic NOD-like receptors through a cascade of signalling pathways. Subsequently, NOD-like receptors assemble to a specialized multiprotein intracellular complex, that is inflammasome. Inflammasome activates Caspase-1 and Gasdermin-D which initiate pyroptotic cell death in the affected tissue by two simultaneous mechanisms. Being a protease, caspase-1 cleaves and activates pro-inflammatory cytokines IL-1β and IL-18. On the other hand, Gasdermin-D causes proteolytic cleavage which forms a pore in the cell membrane. This review highlights the molecular events ranging from recognition of stimuli to pyroptosis. The review is also an attempt to discuss the mechanisms of the most specific experimental NLRP3 inhibitors.
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Affiliation(s)
- Manas Kinra
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Madhavan Nampoothiri
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Devinder Arora
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India.,School of Pharmacy and Medical Sciences, Griffith University, Gold Coast, Queensland, Australia
| | - Jayesh Mudgal
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
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Moxibustion Inhibits the Expression of Colonic NLRP3 through miR7/RNF183/NF- κB Signaling Pathway in UC Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6519063. [PMID: 34777536 PMCID: PMC8580674 DOI: 10.1155/2021/6519063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/24/2021] [Accepted: 10/15/2021] [Indexed: 12/30/2022]
Abstract
Background Moxibustion has been recognized as an effective approach for ulcerative colitis, yet its mechanism is not clear. The research aimed to investigate the influence of moxibustion on the activation of NLRP3 inflammasome and its mechanism in treating ulcerative colitis by observing miR7/RNF183 inducing IκB α ubiquitination to regulate NF-κB signaling pathway in an ulcerative colitis rat model. Methods An ulcerative colitis rat model was established by unlimited access to self-administration of 3.5% (w/v) dextran sulfate sodium solution. Mild moxibustion was applied to bilateral Tianshu points (ST25) in the moxa-stick moxibustion group; rats in the control group were intervened by intraperitoneal injection of ubiquitination inhibitor, MG132. The disease activity index was determined at the end of the intervention; colon injury was observed and scored after hematoxylin-eosin staining; the immunohistochemical method was adopted to detect the expressions of colonic IL-1β and NLRP3 proteins; Western blot determined the expressions of RNF183, IκB α, and NF-κB p65 proteins in the colon; the immunofluorescence test was used to observe the coexpression of IκB α/ubiquitin and IκB α/RNF183 proteins in the colon; immunoprecipitation assay was adopted to observe the interaction between IκB α and RNF183 proteins; and quantitative real-time polymerase chain reaction determined the expression of colonic miR7. Results Moxibustion lowered the disease activity index, manifesting as restored colonic tissue and reduced inflammatory reaction, and decreased expression levels of NLRP3 and IL-1β proteins, compared with the model group. It also reduced colonic expression of NF-κB p65 protein, together with the increased level of IκB α protein and weaker expression levels of ubiquitin and RNF183 proteins and mRNAs and stronger expression of miR7. There were no significant differences between the moxa-stick moxibustion group and the control group except the expressions of RNF183 protein and mRNA and miR7. Conclusion Moxibustion encourages the recovery of colon injury probably by regulating the expression of NLRP3 protein in ulcerative colitis rats through miR7/RNF183/NF-κB signaling pathway.
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Li Z, Zhang S, Zhang Y, Chen J, Wu F, Liu G, Chen GQ. Applications and Mechanism of 3-Hydroxybutyrate (3HB) for Prevention of Colonic Inflammation and Carcinogenesis as a Food Supplement. Mol Nutr Food Res 2021; 65:e2100533. [PMID: 34704372 DOI: 10.1002/mnfr.202100533] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/07/2021] [Indexed: 01/19/2023]
Abstract
SCOPE Inflammatory bowel disease and colorectal carcinogenesis (CRC) are common diseases without effective prevention approach. 3-Hydroxybutyrate (3HB) reported to have multiple functions as an oral food supplement. This study observes that 3HB prevents mouse colitis and CRC. METHODS AND RESULTS The sensitivity of wild type (WT) and GPR109a-/- mice to colitis is compared using dextran sulfate sodium salt (DSS)-induced colitis model. Flow cytometry showed that 3HB cellular surface receptor GPR109a that can decrease the percentage of M1 macrophages from 50% of the DSS-induced acute colitis mouse group to 42% DSS+3HB group mediating the inhibitory effect on inflammation. Bone marrow transplantation experiments further demonstrated that the function of 3HB depended on bone marrow cells. Subsequently, the sensitivity of WT and GPR109a-/- mice to CRC is compared using an azoxymethane-DSS-induced CRC mouse model. It is found that the activation of GPR109a inhibited CRC, depended on reduced myeloid-derived suppressor cells accumulation from 27% of the DSS group to 19% of the DSS+3HB group studied using flow cytometry. CONCLUSION It is concluded that 3HB significantly suppresses colonic inflammation and carcinogenesis, promising to benefit colon disease prevention in form of a food supplement.
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Affiliation(s)
- Zihua Li
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Shujie Zhang
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Yudian Zhang
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jin Chen
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Fuqing Wu
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Gang Liu
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
| | - Guo-Qiang Chen
- School of Life Sciences, Tsinghua University, Beijing, 100084, China.,Center for Synthetic and Systems Biology, Tsinghua University, Beijing, 100084, China.,MOE Key Lab of Industrial Biocatalysis, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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Nunes PR, Mattioli SV, Sandrim VC. NLRP3 Activation and Its Relationship to Endothelial Dysfunction and Oxidative Stress: Implications for Preeclampsia and Pharmacological Interventions. Cells 2021; 10:cells10112828. [PMID: 34831052 PMCID: PMC8616099 DOI: 10.3390/cells10112828] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 01/12/2023] Open
Abstract
Preeclampsia (PE) is a specific syndrome of human pregnancy, being one of the main causes of maternal death. Persistent inflammation in the endothelium stimulates the secretion of several inflammatory mediators, activating different signaling patterns. One of these mechanisms is related to NLRP3 activation, initiated by high levels of danger signals such as cholesterol, urate, and glucose, producing IL-1, IL-18, and cell death by pyroptosis. Furthermore, reactive oxygen species (ROS), act as an intermediate to activate NLRP3, contributing to subsequent inflammatory cascades and cell damage. Moreover, increased production of ROS may elevate nitric oxide (NO) catabolism and consequently decrease NO bioavailability. NO has many roles in immune responses, including the regulation of signaling cascades. At the site of inflammation, vascular endothelium is crucial in the regulation of systemic inflammation with important implications for homeostasis. In this review, we present the important role of NLRP3 activation in exacerbating oxidative stress and endothelial dysfunction. Considering that the causes related to these processes and inflammation in PE remain a challenge for clinical practice, the use of drugs related to inhibition of the NLRP3 may be a good option for future solutions for this disease.
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Chaturvedi S, Malik MY, Sultana N, Jahan S, Singh S, Taneja I, Raju KSR, Rashid M, Wahajuddin M. Chromatographic separation and estimation of natural antimalarial flavonoids in biological matrices. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2021. [DOI: 10.1007/s43538-021-00050-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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The Influence of Bifidobacterium bifidum and Bacteroides fragilis on Enteric Glial Cell-Derived Neurotrophic Factors and Inflammasome. Inflammation 2021; 43:2166-2177. [PMID: 32638263 DOI: 10.1007/s10753-020-01284-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Enteric glial cells (EGCs) and enteric glial-derived neurotrophic factor (GDNF) are directly involved in intestinal inflammation. In this study, we sought to examine the possible mechanisms for how Bifidobacterium bifidum (B.b.) and Bacteroides fragilis (B.f.) influence EGC regulation. In this study, lipopolysaccharide (LPS) and interferon-γ (IFN-γ) were used as exogenous stimuli of EGCs to establish an intestinal inflammation model. After stimulation with LPS and IFN-γ, B.b. and B.f. supernatants were used to activate EGCs and to examine EGC immune mechanisms. For this purpose, qRT-PCR, western blotting, and laser scanning confocal microscopy (LSCM) were used to detect the expression of NLRP3, NLRP6, NGF, NT-3, IL-18, IL-1β, and caspase-1. We found that EGCs, after stimulation with LPS and IFN-γ, could express NLRP3, NLRP6, NT-3, NGF, IL-18, IL-1β, and caspase-1 through LSCM. In intestinal inflammation, B.b. and B.f. could trigger an increase in NGF and NT-3 expression in EGCs in order to protect the intestine. Furthermore, B.b. and B.f. could upregulate NLRP3 expression in EGCs and promote an inflammatory response. B.b. had a dual regulatory role in EGC NLRP6 expression, while B.f. inhibited NLRP6 protein expression. Moreover, B.b. could decrease the expression of IL-18, IL-1β, and caspase-1 in EGCs in order to inhibit the inflammatory response. Contrary to this, B.f. could upregulate IL-18, IL-1β, and caspase-1 expression in EGCs in order to promote the inflammatory response. B.b. and B.f. can influence the expression of NGF, NT-3, NLRP3, NLRP6, IL-18, IL-1β, and caspase-1 in EGCs in order to inhibit or promote intestinal inflammation.
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Feng Z, Jiao L, Wu Z, Xu J, Gu P, Xu S, Liu Z, Hu Y, Liu J, Wu Y, Wang D. A Novel Nanomedicine Ameliorates Acute Inflammatory Bowel Disease by Regulating Macrophages and T-Cells. Mol Pharm 2021; 18:3484-3495. [PMID: 34310145 DOI: 10.1021/acs.molpharmaceut.1c00415] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Ramulus mori polysaccharide (RMP), one of the most important active components of R. mori, has been attracting increasing interest because of its potent bioactive properties, including anti-inflammatory, antitumor, and antidiabetic effects. Despite the great therapeutic potential of RMP, its inherent properties of low bioavailability and brief biological half-life have limited its applications to the clinic. Thus, RMP was packaged by poly(lactic-co-glycolic acid) (PLGA) nanoparticles to develop a novel anti-inflammatory nanomedicine (PLGA-RMP) in this study. The nanoparticles were synthesized via a double-emulsion solvent evaporation technique, and the average diameter of PLGA-RMP was about 202 nm. PLGA-RMP nanoparticles reduced the expression of inflammatory cytokines while promoting the production of IL-10, and boosted the phenotypic shift in macrophages in vitro. Furthermore, lipopolysaccharide (LPS)-induced inflammatory bowel disease (IBD) in mouse was used to examine the anti-inflammatory effect of PLGA-RMP in vivo. Oral administration of PLGA-RMP in LPS-induced IBD mice substantially mitigated the intestinal inflammation compared to treatment with LPS alone, as evidenced by attenuation of disease activity index scores and inflammatory damage in the intestine. Meanwhile, PLGA-RMP suppressed the expression and secretion of specific inflammatory cytokines including TNF-α, IL-6, IL-1β, and PGE2 in the inflamed intestine while inhibiting the activation of CD3+CD8+ T-cells and increasing the number of activated Tregs in the intestine. These results indicated that PLGA-RMP deserves further consideration as a potential therapeutic nanomedicine to treat various inflammatory diseases, including IBD.
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Affiliation(s)
- Zian Feng
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Lina Jiao
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Zhiyong Wu
- Nanjing Traditional Chinese Veterinary Medicine Research Center, Building 1, Weigang, Xuanwu District, Nanjing 210095, P. R. China
| | - Jiameng Xu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Pengfei Gu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Shuwen Xu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Zhenguang Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Yuanliang Hu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Jiaguo Liu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Yi Wu
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Deyun Wang
- Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
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Protective Effect of the Abelmoschus manihot Flower Extract on DSS-Induced Ulcerative Colitis in Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:7422792. [PMID: 34408782 PMCID: PMC8367538 DOI: 10.1155/2021/7422792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/24/2021] [Accepted: 07/26/2021] [Indexed: 12/12/2022]
Abstract
Background The flower of Abelmoschus manihot (AM) has been widely used in the treatment of chronic inflammatory diseases, including ulcerative colitis. This paper aimed to confirm the therapeutic effect of AM on ulcerative colitis (UC) and explore its mechanism. Methods Mouse models were induced by 2.5% dextran sulfate sodium (DSS) and treated with AM. UC signs, symptoms, colon macroscopic lesion scores, and disease activity index (DAI) scores were observed. Colon levels of interleukin- (IL-) 6, IL-1β, IL-18, IL-17, tumor necrosis factor- (TNF-) α, and IL-10 were quantified by ELISA. The colon protein expression levels of NLRP3, ASC, caspase 1 p10, β-arrestin1, ZO-1, occludin-1, and claudin-1 were examined by immunohistochemistry and western blotting. The mRNA levels of IL-1β, IL-18, NLRP3, ASC, and caspase 1 p10 in the colon were determined by real-time quantitative polymerase chain reaction (qPCR). Results After treatment with AM, the mortality of mice, pathological damage to the colon, splenomegaly, and the spleen coefficient were decreased. AM reduced the levels of proinflammatory cytokines (IL-6, IL-1β, IL-18, IL-17, and TNF-α) and increased the level of IL-10. The mRNA expression levels of NLRP3, ASC, and caspase 1 in colon tissue were decreased by AM in a dose-dependent manner. In addition, AM also reduced the protein expression of NLRP3, ASC, caspase 1 p10, IL-1β, IL-18, and β-arrestin1 in the colon tissue of model mice. Western blot analysis confirmed that AM increased the expression of occludin-1, claudin-1, and ZO-1 in a dose-dependent manner. Conclusion This study shows that AM has a significant therapeutic effect on mice with UC, and the mechanism may be related to the inhibition of the β-arrestin1/NLRP3 inflammasome signaling pathway and the protection of intestinal barrier function.
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Das B, Sarkar C, Rawat VS, Kalita D, Deka S, Agnihotri A. Promise of the NLRP3 Inflammasome Inhibitors in In Vivo Disease Models. Molecules 2021; 26:4996. [PMID: 34443594 PMCID: PMC8399941 DOI: 10.3390/molecules26164996] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 12/26/2022] Open
Abstract
Nucleotide-binding oligomerization domain NOD-like receptors (NLRs) are conserved cytosolic pattern recognition receptors (PRRs) that track the intracellular milieu for the existence of infection, disease-causing microbes, as well as metabolic distresses. The NLRP3 inflammasome agglomerates are consequent to sensing a wide spectrum of pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs). Certain members of the NLR family have been documented to lump into multimolecular conglomerates called inflammasomes, which are inherently linked to stimulation of the cysteine protease caspase-1. Following activation, caspase-1 severs the proinflammatory cytokines interleukin (IL)-1β and IL-18 to their biologically active forms, with consequent commencement of caspase-1-associated pyroptosis. This type of cell death by pyroptosis epitomizes a leading pathway of inflammation. Accumulating scientific documentation has recorded overstimulation of NLRP3 (NOD-like receptor protein 3) inflammasome involvement in a wide array of inflammatory conditions. IL-1β is an archetypic inflammatory cytokine implicated in multiple types of inflammatory maladies. Approaches to impede IL-1β's actions are possible, and their therapeutic effects have been clinically demonstrated; nevertheless, such strategies are associated with certain constraints. For instance, treatments that focus on systemically negating IL-1β (i.e., anakinra, rilonacept, and canakinumab) have been reported to result in an escalated peril of infections. Therefore, given the therapeutic promise of an NLRP3 inhibitor, the concerted escalated venture of the scientific sorority in the advancement of small molecules focusing on direct NLRP3 inflammasome inhibition is quite predictable.
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Affiliation(s)
- Biswadeep Das
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India;
| | - Chayna Sarkar
- Department of Clinical Pharmacology & Therapeutics, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Mawdiangdiang, Shillong 793018, Meghalaya, India;
| | - Vikram Singh Rawat
- Department of Psychiatry, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India;
| | - Deepjyoti Kalita
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India; (D.K.); (S.D.)
| | - Sangeeta Deka
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India; (D.K.); (S.D.)
| | - Akash Agnihotri
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Virbhadra Road, Rishikesh 249203, Uttarakhand, India;
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Wang XQ, Chen H, Gao YZ, Huang YX, Zhang RJ, Xie J, Li Y, Huang YQ, Gou LS, Yao RQ. The Potential Immunomodulatory Properties of Levornidazole Contribute to Improvement in Experimental Ulcerative Colitis. Curr Med Sci 2021; 41:746-756. [PMID: 34403100 DOI: 10.1007/s11596-021-2384-4] [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: 04/28/2020] [Accepted: 12/26/2020] [Indexed: 10/20/2022]
Abstract
The use of an antibiotic with immunomodulatory properties could be fascinating in treating multifactorial inflammatory conditions such as ulcerative colitis (UC). We report our investigations into the immunomodulatory properties of levornidazole, the S-enantiomer of ornidazole, which displayed a tremendous therapeutic potential in UC induced by dextran sodium sulfate (DSS). Levornidazole administration to DSS-colitic mice attenuated the intestinal inflammatory process, with an efficacy better than that shown by 5-amino salicylic acid. This was evidenced by decreased disease activity index, ameliorated macroscopic and microscopic colon damages, and reduced expression of inflammatory cytokines. Additionally, levornidazole displayed anti-inflammatory activity through Caveolin-1-dependent reducing IL-1β and IL-18 secretion by macrophages contributing to its improvement of the intestinal inflammation, as confirmed in vitro and in vivo. In conclusion, these results pointed out that the immunomodulatory effects of levornidazole played a vital role in ameliorating the intestinal inflammatory process, which would be crucial for the translation of its use into clinical settings.
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Affiliation(s)
- Xing-Qi Wang
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Hao Chen
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, 221600, China
| | - Yu-Zhi Gao
- Department of Cell Biology, Xuzhou Medical University, Xuzhou, 221009, China
| | - Yan-Xiu Huang
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Rui-Juan Zhang
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Jun Xie
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Yu Li
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Yu-Qing Huang
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Ling-Shan Gou
- Center for Genetic Medicine, Xuzhou Maternity and Child Health Care Hospital, Xuzhou, 221009, China.
| | - Rui-Qin Yao
- Department of Cell Biology, Xuzhou Medical University, Xuzhou, 221009, China.
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Chen X, Xu T, Lv X, Zhang J, Liu S. Ginsenoside Rh2 alleviates ulcerative colitis by regulating the STAT3/miR-214 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2021; 274:113997. [PMID: 33705918 DOI: 10.1016/j.jep.2021.113997] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ginseng is a valuable medicinal herb used in China for the prevention and treatment of cancer, diabetes, cardiovascular diseases and other diseases. As the main active ingredient of ginseng, ginsenoside has a wide range of pharmacological effects. Ginsenoside Rh2, a protopanaxadiol saponin from ginseng, exhibits anti-inflammatory and anticancer effects. AIM OF THE STUDY The potential biological mechanism of Rh2 in the treatment of ulcerative colitis (UC) has not been clarified clearly. In our research, we aimed to explore the therapeutic effects of Rh2 on dextran sodium sulfate (DSS)-induced colitis and elucidate the mechanism of Rh2 in treating UC. METHODS DSS-induced UC mice were established and randomly divided into the following four groups: control group, DSS group, Rh2 (50 mg/kg) group and sulfasalazine (SASP, 200 mg/kg) group. Except for the control group, 3% DSS drinking water was given to each group for 7 days, and the other two groups were intragastrically administered with Rh2 and SASP for 10 days. At the end of the experiment, colon samples were collected, and phenotypic and pathological analyses were performed in UC mice. Then, Western blot, immunohistochemistry and quantitative real-time PCR analyses were performed to determine the expression of signaling pathway-related factors. RESULTS Rh2 markedly alleviated DSS-induced body weight loss, intestinal damage, colon length shortening and disease activity index (DAI) scores. Furthermore, proinflammatory cytokines, such as TNF-α, IL-6 and IL-1β, were reduced by Rh2. Additionally, STAT3/miR-214 activation was also suppressed by Rh2 administration. In vitro, we demonstrated that Rh2 effectively inhibited IL-6-induced STAT3 phosphorylation and miR-214 expression in cultured normal colonic epithelial cells. CONCLUSION Our results suggested that Rh2 exhibits potential application value in the treatment of UC, and its mechanism is related to the downregulation of STAT3/miR-214 levels, which is expected to be applicable in the treatment of clinical UC.
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Affiliation(s)
- Xuanqing Chen
- The Affiliated Hospital of Nanjing University of Chinese Medicine, #155 Hanzhong Road, Qinhuai District, Nanjing, Jiangsu, 210029, China; School of Life Science & Technology, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Tingting Xu
- School of Medicine & Holistic Integrative Medicine, Nan-jing University of Chinese Medicine, Nanjing, Jiangsu, 210046, China
| | - Xiangyu Lv
- The Affiliated Hospital of Nanjing University of Chinese Medicine, #155 Hanzhong Road, Qinhuai District, Nanjing, Jiangsu, 210029, China; School of Life Science & Technology, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Jingwei Zhang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu, 210009, China.
| | - Shijia Liu
- The Affiliated Hospital of Nanjing University of Chinese Medicine, #155 Hanzhong Road, Qinhuai District, Nanjing, Jiangsu, 210029, China.
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Targeting the NLRP3 Inflammasome as a New Therapeutic Option for Overcoming Cancer. Cancers (Basel) 2021; 13:cancers13102297. [PMID: 34064909 PMCID: PMC8151587 DOI: 10.3390/cancers13102297] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammasomes are multiprotein complexes that regulate the maturation and secretion of the proinflammatory cytokines interleukin-1beta (IL-1β and interleukin-18 (IL-18) in response to various intracellular stimuli. As a member of the inflammasomes family, NLRP3 is the most studied and best characterized inflammasome and has been shown to be involved in several pathologies. Recent findings have made it increasingly apparent that the NLRP3 inflammasome may also play a central role in tumorigenesis, and it has attracted attention as a potential anticancer therapy target. In this review, we discuss the role of NLRP3 in the development and progression of cancer, offering a detailed summary of NLRP3 inflammasome activation (and inhibition) in the pathogenesis of various forms of cancer. Moreover, we focus on the therapeutic potential of targeting NLRP3 for cancer therapy, emphasizing how understanding NLRP3 inflammasome-dependent cancer mechanisms might guide the development of new drugs that target the inflammatory response of tumor-associated cells.
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Li T, Zou QP, Huang F, Cheng GG, Mao ZW, Wang T, Dong FW, Li BJ, He HP, Li YP. Flower extract of Caragana sinica. ameliorates DSS-induced ulcerative colitis by affecting TLR4/NF- κB and TLR4/MAPK signaling pathway in a mouse model. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2021; 24:595-603. [PMID: 34249260 PMCID: PMC8244599 DOI: 10.22038/ijbms.2021.53847.12106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 04/17/2021] [Indexed: 01/10/2023]
Abstract
OBJECTIVES This study aimed to find out the protective effects and preliminary mechanisms of the flower extract of Caragana sinica (FEC) on dextran sulfate sodium salt (DSS)-induced colitis. MATERIALS AND METHODS The ulcerative colitis models of mice induced by 3% DSS were established and treated with FEC. Body weight changes, disease activity index (DAI), colon histopathological score, anti-oxidant ability, and the level of inflammatory cytokines were determined. The expression of Toll-like receptor 4 (TLR4) and myeloid differentiation factor 88 (MyD88) were assessed in colonic tissue by immunohistochemical staining. Western blot was used to analyze the expression of TLR4/ nuclear factor kappa-B (NF-κB) and TLR4/ mitogen-activated protein kinase (MAPK) signaling pathway-related proteins. RESULTS FEC significantly prevented body weight loss and colonic shortening and reduced the disease activity index and histopathological score (P<0.05). Moreover, FEC treatment remarkably down-regulated the levels of myeloperoxidase (MPO), interleukin-1beta (IL-1β), tumor necrosis factor-alpha (TNF-α), and interleukin 6 (IL-6) and up-regulated the levels of superoxide dismutase (SOD), catalase (CAT), glutathione (GSH), and interleukin 10 (IL-10) in the colon of DSS mice (P<0.05). Furthermore, the expression of TLR4/NF-κB and TLR4/MAPK pathway-related proteins was inhibited by FEC (P<0.05). CONCLUSION Our findings demonstrated that FEC could serve as a potential therapeutic agent for treatment of ulcerative colitis.
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Affiliation(s)
- Ting Li
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Qiu-ping Zou
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Feng Huang
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Gui-guang Cheng
- Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, 650500, People’s Republic of China
| | - Ze-wei Mao
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Ting Wang
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Fa-wu Dong
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Bao-jing Li
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Hong-ping He
- College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China
| | - Yan-ping Li
- Corresponding author: Yan-ping Li. College of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, 650500, People’s Republic of China. Tel: +8613518719675.
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Biological functions of NLRP3 inflammasome: A therapeutic target in inflammatory bowel disease. Cytokine Growth Factor Rev 2021; 60:61-75. [PMID: 33773897 DOI: 10.1016/j.cytogfr.2021.03.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022]
Abstract
Cases of inflammatory bowel disease (IBD), a debilitating intestinal disorder with complex pathological mechanisms, have been increasing in recent years, straining the capacity of healthcare systems. Thus, novel therapeutic targets and innovative agents must be developed. Notably, the NLRP3 inflammasome is upregulated in patients with IBD and/or in animal experimental models. As an innate immune supramolecular assembly, the NLRP3 inflammasome is persistently activated during the pathogenesis of IBD by multiple stimuli. Moreover, this protein complex regulates pro-inflammatory cytokines. Thus, targeting this multiprotein oligomer may offer a feasible way to relieve IBD symptoms and improve clinical outcomes. The mechanisms by which the NLRP3 inflammasome is activated, its role in IBD pathogenesis, and the drugs administered to target this protein complex are reviewed herein. This review establishes that the use of inflammasome-targeting drugs are effective for IBD treatment. Moreover, this review suggests that the value and potential of naturally sourced or derived medicines for IBD treatment must be recognized and appreciated.
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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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Serrya MS, El-Sheakh AR, Makled MN. Evaluation of the therapeutic effects of mycophenolate mofetil targeting Nrf-2 and NLRP3 inflammasome in acetic acid induced ulcerative colitis in rats. Life Sci 2021; 271:119154. [PMID: 33539910 DOI: 10.1016/j.lfs.2021.119154] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 01/17/2021] [Accepted: 01/25/2021] [Indexed: 01/01/2023]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease that increases the risk of colorectal cancer. UC is highly associated with the disturbance of the immune system leading to oxidative stress and chronic inflammation of intestine. Therefore, the current study was conducted to investigate the potential anti-oxidant and anti-inflammatory effects of MMF against acetic acid-induced UC that might be associated with the regulation of Nrf-2 and NLRP3 inflammasome signaling. UC was induced in Sprague-Dawley rats by intracolonic instillation of acetic acid. Forty-eight hours post UC induction, MMF (50 mg/kg/day, orally) was given for 8 consecutive days. Then, colon tissues and blood samples were collected. Results showed that MMF significantly attenuated the acetic acid-induced functional, biochemical, and inflammatory injuries in colon. MMF significantly decreased oxidative stress as indicated by the decreased malondialdehyde concentration and the increased total antioxidant capacity, glutathione, catalase, and superoxide dismutase concentrations in colon tissues. MMF also significantly increased Nrf-2 and decreased NLRP3 inflammasome expressions. Moreover, MMF decreased expression of interferon-gamma and increased expression of interferon-alpha. MMF also significantly decreased expression of pro-inflammatory cytokines, interleukin (IL)-1β and IL-18. These results suggest that MMF has antioxidant and anti-inflammatory effects against acetic acid-induced UC through the upregulation of Nrf-2, and INF-α expression in addition to the suppression of NLRP3 inflammasome and subsequent release of IL1β, IL-18 and INF-γ.
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Affiliation(s)
- Marwa S Serrya
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Ahmed R El-Sheakh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Mirhan N Makled
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
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Pyroptosis by caspase-11 inflammasome-Gasdermin D pathway in autoimmune diseases. Pharmacol Res 2021; 165:105408. [PMID: 33412278 DOI: 10.1016/j.phrs.2020.105408] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/28/2020] [Accepted: 12/28/2020] [Indexed: 02/08/2023]
Abstract
Inflammasomes are a group of supramolecular complexes primarily comprise a sensor, adaptor protein and an effector. Among them, canonical inflammasomes are assembled by one specific pattern recognition receptor, the adaptor protein apoptosis-associated speck-like protein containing a CARD and procaspase-1. Murine caspase-11 and its human ortholog caspase-4/5 are identified as cytosolic sensors which directly responds to LPS. Once gaining access to cytosol, LPS further trigger inflammasome activation in noncanonical way. Downstream pore-forming Gasdermin D is a pyroptosis executioner. Emerging evidence announced in recent years demonstrate the vital role played by caspase-11 non-canonical inflammasome in a range of autoimmune diseases. Pharmacological ablation of caspase-11 and its related effector results in potent therapeutic effects. Though recent advances have highlighted the potential of caspase-11 as a drug target, the understanding of caspase-11 molecular activation and regulation mechanism remains to be limited and thus hampered the discovery and progression of novel inhibitors. Here in this timeline review, we explored how caspase-11 get involved in the pathogenesis of autoimmune diseases, we also collected the reported small-molecular caspase-11 inhibitors. Moreover, the clinical implications and therapeutic potential of caspase-11 inhibitors are discussed. Targeting non-canonical inflammasomes is a promising strategy for autoimmune diseases treatment, while information about the toxicity and physiological disposition of the promising caspase-11 inhibitors need to be supplemented before they can be translated from bench to bedside.
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40
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Zhang H, Zahid A, Ismail H, Tang Y, Jin T, Tao J. An overview of disease models for NLRP3 inflammasome over-activation. Expert Opin Drug Discov 2020; 16:429-446. [PMID: 33131335 DOI: 10.1080/17460441.2021.1844179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: Inflammatory reactions, including those mediated by the NLRP3 inflammasome, maintain the body's homeostasis by removing pathogens, repairing damaged tissues, and adapting to stressed environments. However, uncontrolled activation of the NLRP3 inflammasome tends to cause various diseases using different mechanisms. Recently, many inhibitors of the NLRP3 inflammasome have been reported and many are being developed. In order to assess their efficacy, specificity, and mechanism of action, the screening process of inhibitors requires various types of cell and animal models of NLRP3-associated diseases.Areas covered: In the following review, the authors give an overview of the cell and animal models that have been used during the research and development of various inhibitors of the NLRP3 inflammasome.Expert opinion: There are many NLRP3 inflammasome inhibitors, but most of the inhibitors have poor specificity and often influence other inflammatory pathways. The potential risk for cross-reaction is high; therefore, the development of highly specific inhibitors is essential. The selection of appropriate cell and animal models, and combined use of different models for the evaluation of these inhibitors can help to clarify the target specificity and therapeutic effects, which is beneficial for the development and application of drugs targeting the NLRP3 inflammasome.
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Affiliation(s)
- Hongliang Zhang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ayesha Zahid
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Hazrat Ismail
- MOE Key Laboratory for Cellular Dynamics & Anhui Key Laboratory for Chemical Biology, CAS Center for Excellence in Molecular Cell Science. Hefei National Science Center for Physical Sciences at Microscale. University of Science and Technology of China, Hefei, China
| | - Yujie Tang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Tengchuan Jin
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,CAS Center for Excellence in Molecular Cell Science, Shanghai, China
| | - Jinhui Tao
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Ding W, Ding Z, Wang Y, Zhu Y, Gao Q, Cao W, Du R. Evodiamine Attenuates Experimental Colitis Injury Via Activating Autophagy and Inhibiting NLRP3 Inflammasome Assembly. Front Pharmacol 2020; 11:573870. [PMID: 33240089 PMCID: PMC7681073 DOI: 10.3389/fphar.2020.573870] [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] [Received: 06/18/2020] [Accepted: 10/06/2020] [Indexed: 12/11/2022] Open
Abstract
Autophagy and NLRP3 inflammasome were associated with the process of colitis. Drugs targeting NLRP3 inflammasome and autophagy to treat colitis are absent, and they are urgently required. Herein, we examine the effect of evodiamine, extracted from the fruit of Evodiae Fructus, on experimental colitis induced by dextran sulfate sodium and exposit whether evodiamine effects on autophagy and NLRP3 inflammasome. Our data indicated that colitis was ameliorated by evodiamine, including the improvement of mice body weight, colon length, histopathologic score, and the disease activity index. We also observed that evodiamine restrained the formation of the NLRP3 inflammasome by inhibiting the apoptosis-associated speck-like protein oligomerization and caspase-1 activity in THP-1 macrophages. Our results demonstrated evodiamine inhibit NLRP3 inflammasome activation via the induction of autophagosome-mediated degradation of inflammasome and the inhibition of NFκB pathway, which synergistically contribute to the effect of evodiamine in colitis. It indicates the potential use of evodiamine in inflammatory bowel diseases treatment.
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Affiliation(s)
- Wenwen Ding
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Zhiquan Ding
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Yong Wang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China.,State Key Laboratory of Analytical Chemistry for Life Science, Nanjing University, Nanjing, China
| | - Yan Zhu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Qi Gao
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Wangsen Cao
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Ronghui Du
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
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Cui L, Guan X, Ding W, Luo Y, Wang W, Bu W, Song J, Tan X, Sun E, Ning Q, Liu G, Jia X, Feng L. Scutellaria baicalensis Georgi polysaccharide ameliorates DSS-induced ulcerative colitis by improving intestinal barrier function and modulating gut microbiota. Int J Biol Macromol 2020; 166:1035-1045. [PMID: 33157130 DOI: 10.1016/j.ijbiomac.2020.10.259] [Citation(s) in RCA: 203] [Impact Index Per Article: 50.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/28/2020] [Accepted: 10/31/2020] [Indexed: 12/25/2022]
Abstract
The aim of this study was to investigate the effect of a polysaccharide from Scutellaria baicalensis Georgi on UC. Gut microbiota dysbiosis is a worldwide problem associating with ulcerative colitis. One homogeneous polysaccharide, named SP2-1, was isolated from Scutellaria baicalensis Georgi. SP2-1 comprised mannose, ribose, rhamnose, glucuronic acid, glucose, xylose, arabinose, fucose in the molar ratio of 5.06:21.24:1.00:20.25:3.49:50.90:228.77:2.40, with Mw of 3.72 × 106 Da. SP2-1 treatment attenuated body weight loss, reduced DAI, ameliorated colonic pathological damage, and decreased MPO activity of UC mice induced by DSS. SP2-1 also suppressed the levels of proinflammatory cytokines. Additionally, the intestinal barrier was repaired due to the up-regulated expressions of ZO-1, Occludin and Claudin-5. SP2-1 remarkably enhanced the levels of acetic acid, propionic acid, and butyric acid in DSS-treated mice. Furthermore, as compared with model group, the abundance of Firmicutes, Bifidobacterium, Lactobacillus, and Roseburia were significantly increased with SP2-1 treatment. And SP2-1 could significantly inhibit the levels of Bacteroides, Proteobacteria and Staphylococcus. In conclusion, SP2-1 might serve as a novel drug candidate against UC.
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Affiliation(s)
- Li Cui
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Xueneng Guan
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Wenbo Ding
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Yi Luo
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Wei Wang
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Weiquan Bu
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Jie Song
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Xiaobin Tan
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - E Sun
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Qing Ning
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Guoguang Liu
- Affliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, Jiangsu, PR China
| | - Xiaobin Jia
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, PR China.
| | - Liang Feng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, Jiangsu, PR China.
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Molla MD, Akalu Y, Geto Z, Dagnew B, Ayelign B, Shibabaw T. Role of Caspase-1 in the Pathogenesis of Inflammatory-Associated Chronic Noncommunicable Diseases. J Inflamm Res 2020; 13:749-764. [PMID: 33116753 PMCID: PMC7585796 DOI: 10.2147/jir.s277457] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
Caspase-1 is the first and extensively studied inflammatory caspase that is activated through inflammasome assembly. Inflammasome is a cytosolic formation of multiprotein complex that aimed to start inflammatory response against infections or cellular damages. The process leads to an auto-activation of caspase-1 and consequent maturation of caspase-1 target molecules such as interleukin (IL)-1β and IL-18. Recently, the role of caspase-1 and inflammasome in inflammatory-induced noncommunicable diseases (NCDs) like obesity, diabetes mellitus (DM), cardiovascular diseases (CVDs), cancers and chronic respiratory diseases have widely studied. However, their reports are distinct and even they have reported contrasting role of caspase-1 in the development and progression of NCDs. A few studies have reported that caspase-1/inflammasome assembley has a protective role in the initiation and progression of these diseases through the activation of the noncanonical caspase-1 target substrates like gasdermin-D and regulation of immune cells. Conversely, others have revealed that caspase-1 has a direct/indirect effect in the development and progression of several NCDs. Therefore, in this review, we systematically summarized the role of caspase-1 in the development and progression of NCDs, especially in obesity, DM, CVDs and cancers.
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Affiliation(s)
- Meseret Derbew Molla
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Yonas Akalu
- Department of Human Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Zeleke Geto
- Department of Biomedical Sciences, School of Medicine, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Baye Dagnew
- Department of Human Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Birhanu Ayelign
- Department of Immunology and Molecular Biology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Tewodros Shibabaw
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Harrison D, Boutard N, Brzozka K, Bugaj M, Chmielewski S, Cierpich A, Doedens JR, Fabritius CHRY, Gabel CA, Galezowski M, Kowalczyk P, Levenets O, Mroczkowska M, Palica K, Porter RA, Schultz D, Sowinska M, Topolnicki G, Urbanski P, Woyciechowski J, Watt AP. Discovery of a series of ester-substituted NLRP3 inflammasome inhibitors. Bioorg Med Chem Lett 2020; 30:127560. [PMID: 32956781 DOI: 10.1016/j.bmcl.2020.127560] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/25/2020] [Accepted: 09/14/2020] [Indexed: 12/15/2022]
Abstract
The NLRP3 inflammasome is a component of the innate immune system involved in the production of proinflammatory cytokines. Aberrant activation by a wide range of exogenous and endogenous signals can lead to chronic, low-grade inflammation. It has attracted a great deal of interest as a drug target due to the association with diseases of large unmet medical need such as Alzheimer's disease, Parkinson's disease, arthritis, and cancer. To date, no drugs specifically targeting inhibition of the NLRP3 inflammasome have been approved. In this work, we used the known NLRP3 inflammasome inhibitor CP-456,773 (aka CRID3 or MCC 950) as our starting point and undertook a Structure-Activity Relationship (SAR) analysis and subsequent scaffold-hopping exercise. This resulted in the rational design of a series of novel ester-substituted urea compounds that are highly potent and selective NLRP3 inflammasome inhibitors, as exemplified by compounds 44 and 45. It is hypothesized that the ester moiety acts as a highly permeable delivery vehicle and is subsequently hydrolyzed to the carboxylic acid active species by carboxylesterase enzymes. These molecules are greatly differentiated from the state-of-the-art and offer potential in the treatment of NLRP3-driven diseases, particularly where tissue penetration is required.
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Affiliation(s)
- David Harrison
- NodThera Ltd., Suite 8, The Mansion, Chesterford Research Park, Little Chesterford, Saffron Walden, Essex CB10 1XL, United Kingdom.
| | - Nicolas Boutard
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Krzysztof Brzozka
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Marta Bugaj
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Stefan Chmielewski
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Anna Cierpich
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - John R Doedens
- NodThera Inc., 454 N 34(th) Street, Seattle, WA 98103, USA
| | | | | | - Michal Galezowski
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Piotr Kowalczyk
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Oleksandr Levenets
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Magdalena Mroczkowska
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Katarzyna Palica
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Roderick A Porter
- Rod Porter Consultancy, 89 Back Street, Ashwell, Baldock, Hertfordshire SG7 5PG, United Kingdom
| | - David Schultz
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Marta Sowinska
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Grzegorz Topolnicki
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Piotr Urbanski
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Jakub Woyciechowski
- Selvita S.A. (now Ryvu Therapeutics), Park Life Science, ul. Bobrzynskiego 14, 30-348, Kraków, Poland
| | - Alan P Watt
- NodThera Ltd., Suite 8, The Mansion, Chesterford Research Park, Little Chesterford, Saffron Walden, Essex CB10 1XL, United Kingdom
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Emerging role of IL-6 and NLRP3 inflammasome as potential therapeutic targets to combat COVID-19: Role of lncRNAs in cytokine storm modulation. Life Sci 2020; 257:118114. [PMID: 32693241 PMCID: PMC7368418 DOI: 10.1016/j.lfs.2020.118114] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023]
Abstract
The world has witnessed a high morbidity and mortality caused by SARS-CoV-2, and global death toll is still rising. Exaggerated inflammatory responses are thought to be more responsible for infiltrated immune cells accumulation, organ damage especially lung, dyspnea, and respiratory failure rather than direct effect of viral replication. IL-6 and NLRP3 inflammasome are the major immune components in immune responses stimulation upon pathogen infection. It's noteworthy that the function and expression of these components are remarkably influenced by non-coding RNAs including long non-coding RNAs. Given the potential role of these components in organ damage and pathological manifestations of patients infected with COVID-19, their blockage might be a hopeful and promising treatment strategy. Notably, more study on long non-coding RNAs involved in inflammatory responses could elevate the efficacy of anti-inflammatory therapy. In this review we discuss the potential impact of IL-6 and NLRP3 inflammasome blocker drugs on inflammatory responses, viral clearance, and pathological and clinical manifestations. Collectively, anti-inflammatory strategy might pave the way to diminish clinical and pathological manifestations and thereby discharging patients infected with COVID-19 from hospital.
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46
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Wang X, Gou L, Gao Y, Huang Y, Kuai R, Li Y, Wang Y, Chen Y, Li J, Cheng C, Feng Z, Wu X, Yao R. RalA exerts an inhibitory effect on IL-1β/IL-18 secretion by blocking NLRP3 inflammasome activation in levornidazole-treated human THP-1 macrophages. Int Immunopharmacol 2020; 88:106898. [PMID: 32866784 DOI: 10.1016/j.intimp.2020.106898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/11/2020] [Accepted: 08/11/2020] [Indexed: 12/17/2022]
Abstract
The NLRP3 inflammasome is an important mediator of inflammatory responses and its regulation is an active area of research. RalA is a Ras-like GTPase, which play pivotal roles in the biology of cells. So far, there have been very few studies on RalA regulating inflammatory responses. Bioinformatics analysis predicted that RalA might participate in the regulatory network of NLRP3 inflammasome, which has been confirmed in THP-1 macrophages. After virtual screening of compounds, it was found that levonidazole selected from our virtual small molecule compound library has the potential to bind to RalA. Of note, the interaction of RalA/levornidazole was verified by Surface Plasmon Resonance-Biacore T200, LC/MS analysis and Western blotting analysis. Molecular dynamics simulations revealed that the conformational changes of RalA might be regulated by levornidazole. Additionally, IL-1β/IL-18 secretion from ATP + LPS stimulated THP-1-derived macrophages was RalA-dependently suppressed by levornidazole, suggesting that RalA might have an inhibitory effect on NLRP3 inflammasome activation. The results of co-immunoprecipitation and RalA depletion experiments showed that levornidazole could induce RalA to block the assembly of NLRP3/ASC/pro-caspase-1 complex, thereby reducing the levels of cleaved-caspase-1 and IL-1β/IL-18 secretion. Our study has suggested an anti-inflammatory function of RalA and identified its targeting chemical compound. Overall, this study clarifies a novel pharmacological mechanism by which RalA/levornidazole inhibits NLRP3 inflammasome activation and IL-1β/IL-18 secretion.
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Affiliation(s)
- Xingqi Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China.
| | - Lingshan Gou
- Center for Genetic Medicine, Xuzhou Maternity and Child Health Care Hospital, Xuzhou 221009, Jiangsu, China
| | - Yuzhi Gao
- Department of Cell Biology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221009, Jiangsu, China
| | - Yuqing Huang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Rui Kuai
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Yu Li
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Yujing Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Yanhong Chen
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Jun Li
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Chao Cheng
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Zhaojun Feng
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, 101 Shanghai Road, Xuzhou 221116, Jiangsu, China
| | - Xuefeng Wu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210093, Jiangsu, China.
| | - Ruiqin Yao
- Department of Cell Biology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou 221009, Jiangsu, China.
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47
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Zito G, Buscetta M, Cimino M, Dino P, Bucchieri F, Cipollina C. Cellular Models and Assays to Study NLRP3 Inflammasome Biology. Int J Mol Sci 2020; 21:ijms21124294. [PMID: 32560261 PMCID: PMC7352206 DOI: 10.3390/ijms21124294] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/06/2020] [Accepted: 06/12/2020] [Indexed: 12/12/2022] Open
Abstract
The NLRP3 inflammasome is a multi-protein complex that initiates innate immunity responses when exposed to a wide range of stimuli, including pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs). Inflammasome activation leads to the release of the pro-inflammatory cytokines interleukin (IL)-1β and IL-18 and to pyroptotic cell death. Over-activation of NLRP3 inflammasome has been associated with several chronic inflammatory diseases. A deep knowledge of NLRP3 inflammasome biology is required to better exploit its potential as therapeutic target and for the development of new selective drugs. To this purpose, in the past few years, several tools have been developed for the biological characterization of the multimeric inflammasome complex, the identification of the upstream signaling cascade leading to inflammasome activation, and the downstream effects triggered by NLRP3 activation. In this review, we will report cellular models and cellular, biochemical, and biophysical assays that are currently available for studying inflammasome biology. A special focus will be on those models/assays that have been used to identify NLRP3 inhibitors and their mechanism of action.
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Affiliation(s)
- Giovanni Zito
- Fondazione Ri.MED, via Bandiera 11, 90133 Palermo, Italy; (G.Z.); (M.B.); (M.C.)
| | - Marco Buscetta
- Fondazione Ri.MED, via Bandiera 11, 90133 Palermo, Italy; (G.Z.); (M.B.); (M.C.)
| | - Maura Cimino
- Fondazione Ri.MED, via Bandiera 11, 90133 Palermo, Italy; (G.Z.); (M.B.); (M.C.)
| | - Paola Dino
- Dipartimento di Biomedicina Sperimentale, Neuroscenze e Diagnostica Avanzata (Bi.N.D.), University of Palermo, via del Vespro 129, 90127 Palermo, Italy; (P.D.); (F.B.)
| | - Fabio Bucchieri
- Dipartimento di Biomedicina Sperimentale, Neuroscenze e Diagnostica Avanzata (Bi.N.D.), University of Palermo, via del Vespro 129, 90127 Palermo, Italy; (P.D.); (F.B.)
- Istituto per la Ricerca e l’Innovazione Biomedica-Consiglio Nazionale delle Ricerche, via Ugo la Malfa 153, 90146 Palermo, Italy
| | - Chiara Cipollina
- Fondazione Ri.MED, via Bandiera 11, 90133 Palermo, Italy; (G.Z.); (M.B.); (M.C.)
- Istituto per la Ricerca e l’Innovazione Biomedica-Consiglio Nazionale delle Ricerche, via Ugo la Malfa 153, 90146 Palermo, Italy
- Correspondence: ; Tel.: +39-091-6809191; Fax: +39-091-6809122
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48
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Tian M, Ma P, Zhang Y, Mi Y, Fan D. Ginsenoside Rk3 alleviated DSS-induced ulcerative colitis by protecting colon barrier and inhibiting NLRP3 inflammasome pathway. Int Immunopharmacol 2020; 85:106645. [PMID: 32521491 DOI: 10.1016/j.intimp.2020.106645] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/28/2020] [Accepted: 05/23/2020] [Indexed: 12/19/2022]
Abstract
Ginsenosides have a variety of pharmacological activities, including immunomodulatory, antitumor and anti-inflammatory activities. However, the effect of Rk3 on ulcerative colitis has rarely been reported. This study evaluated the effect of Rk3 on DSS-induced ulcerative colitis and preliminarily explored the anti-inflammatory mechanisms. Rk3 administration significantly attenuated the weight loss, increased DAI scores, colonic shortening, and increased MPO and iNOS activities caused by DSS in mice. Histological improvement was apparent, tight junctions in the colon were restored, and the levels of short-chain fatty acids (acetic acid, butyric acid and isovaleric acid) were increased. In addition, Rk3 reduced the expression of proinflammatory factors (TNF-α, IL-1β and IL-6), NLRP3, ASC, and Caspase-1, indicating blockade of the NLRP3 inflammasome pathway. These results show that Rk3 can improve DSS-induced ulcerative colitis by protecting intestinal barrier function and inhibiting NLRP3 inflammasome expression, indicating that Rk3 could be used as a potential drug for treating ulcerative colitis.
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Affiliation(s)
- Mi Tian
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Biotech & Biomed Research Institute, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China
| | - Pei Ma
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Biotech & Biomed Research Institute, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China
| | - Yan Zhang
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Biotech & Biomed Research Institute, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China
| | - Yu Mi
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Biotech & Biomed Research Institute, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China.
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China; Biotech & Biomed Research Institute, Northwest University, Taibai North Road 229, Xi'an, Shaanxi 710069, China.
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49
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Zhang H, Cao N, Yang Z, Fang X, Yang X, Li H, Hong Z, Ji Z. Bilobalide Alleviated Dextran Sulfate Sodium-Induced Experimental Colitis by Inhibiting M1 Macrophage Polarization Through the NF-κB Signaling Pathway. Front Pharmacol 2020; 11:718. [PMID: 32670051 PMCID: PMC7326085 DOI: 10.3389/fphar.2020.00718] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 04/30/2020] [Indexed: 12/17/2022] Open
Abstract
Bilobalide, a unique Ginkgo biloba constituent has attracted significant interest as a novel therapeutic option for neuronal protection. However, there is paucity of data on its effect on colitis. This work sought to evaluate the effect of bilobalide on macrophage polarization in vitro and dextran sulfate sodium (DSS) induced colitis in vivo. Through the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and annexin V/PI assay, it was shown that bilobalide has no significant toxicity on macrophage. Lipopolysaccharide (LPS) and interferon-gamma (IFN-γ) induced macrophage activation and polarization were significantly suppressed by bilobalide as indicated by reduced expression of cytokine, major histocompatibility complex II (MHC-II), and CD11c. Pertinently, the signaling pathway study showed that the phosphorylation of p65 and its nuclear translocation were decreased while STAT1 was not affected. In DSS-treated mice, administration (i.g) of three doses of bilobalide na\mely 1.25 mg/kg (low dose group), 2.5 mg/kg (medium dose group), and 5 mg/kg (high dose group) was performed daily starting from day 1 to day 10. Medium and high dose bilobalide markedly reduced the inflammation of colitis proved via elevation of bodyweight, decrement in disease activity index (DAI), alleviation of colon damage as well as reduction in activity of colon tissue myeloperoxidase activity. In accordance with the in vitro results, the levels of inflammatory cytokines such as interleukin 6 (IL-6), IL-1β, and tumor necrosis factor (TNF-α) in serum as well as messenger RNA (mRNA) expression in colon were obviously reduced in the bilobalide treated groups. Also, factor nuclear factor kappa B (NF-κB) signaling pathway was decreased significantly by bilobalide treatment. Collectively, these results indicated that administration of bilobalide improved experimental colitis via inhibition of M1 macrophage polarization through the NF-κB signaling pathway. Thus, bilobalide could act as a potential drug for the treatment of inflammatory bowel disease (IBD) in the not-too-distant future.
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Affiliation(s)
- Heng Zhang
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Nengqi Cao
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Zhilong Yang
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Xingchao Fang
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Xinyu Yang
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Hao Li
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Zhi Hong
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
| | - Zhenling Ji
- Department of General Surgery, Nanjing Lishui District People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
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50
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Regulatory effects of moxibustion on ubiquitin and NLRP3 proteins in colon of ulcerative colitis rats. JOURNAL OF ACUPUNCTURE AND TUINA SCIENCE 2020. [DOI: 10.1007/s11726-020-1162-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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