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Hosseinzadeh A, Jamshidi Naeini A, Sheibani M, Gholamine B, Reiter RJ, Mehrzadi S. Melatonin and oral diseases: possible therapeutic roles based on cellular mechanisms. Pharmacol Rep 2024; 76:487-503. [PMID: 38607587 DOI: 10.1007/s43440-024-00593-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
Oral diseases, including periodontal disorders, oral cancer, periodontitis, and mucositis are the major challenges for both patients and healthcare providers. These conditions often involve inflammation, oxidative stress, and impaired cellular processes, leading to symptoms ranging from discomfort to severe debilitation. Conventional treatments for such oral diseases exhibit constraints, prompting the investigation of innovative therapeutic approaches. Considering the anti-inflammatory, anti-oxidant, and anti-cancer effects of melatonin, this study was carried out to investigate the potential protective effects of melatonin in mitigating the severity of oral diseases. Studies indicate that melatonin influences the differentiation of periodontal stem cells, inhibits oral cancer progression, reduces inflammation associated with periodontitis, and alleviates the severity of oral mucositis. Melatonin has demonstrated potential efficacy in both preclinical and clinical investigations; however, findings are frequently heterogeneous and contingent upon contextual factors. This review provides a comprehensiveoverview of current state of knowledge in this domain, elucidating the multifaceted role that melatonin may assume in combatingoral diseases. Further research should be directed toward determining the most effective dosing, timing, and administration methods for melatonin-based therapies for oral diseases.
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Affiliation(s)
- Azam Hosseinzadeh
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Jamshidi Naeini
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sheibani
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Babak Gholamine
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | - Saeed Mehrzadi
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Liu X, Zang L, Yu J, Yu J, Wang S, Zhou L, Song H, Ma Y, Niu X, Li W. Anti-inflammatory effect of proanthocyanidins from blueberry through NF-κβ/NLRP3 signaling pathway in vivo and in vitro. Immunopharmacol Immunotoxicol 2024:1-11. [PMID: 38772618 DOI: 10.1080/08923973.2024.2358770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 05/18/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND Systemic inflammatory response syndrome (SIRS) is an uncontrolled systemic inflammatory response. Proanthocyanidins (PC) is a general term of polyphenol compounds widely existed in blueberry fruits and can treat inflammation-related diseases. This study aimed to explore the regulatory effect of PC on lipopolysaccharide (LPS)-induced systemic inflammation and its potential mechanism, providing effective strategies for the further development of PC. METHODS Here, RAW264.7 macrophages were stimulated with LPS to establish an inflammation model in vitro, while endotoxin shock mouse models were constructed by LPS in vivo. The function of PC was investigated by MTT, ELISA kits, H&E staining, immunohistochemistry, and Western blot analysis. RESULTS Functionally, PC could demonstrate the potential to mitigate mortality in mice with endotoxin shock, as well as attenuated the levels of inflammatory cytokines (IL-6, TNF-α) and biochemical indicators (AST, ALT, CRE and BUN). Moreover, it had a significant protective effect on lung and kidney tissues damage. Mechanistically, PC exerted anti-inflammatory effects by inhibiting the activation of the NF-κB/NLRP3 signaling pathway. CONCLUSION PC might have the potential ability of anti-inflammatory effects via modulation of the NF-κB/NLRP3 signaling pathway.
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Affiliation(s)
- Xinyao Liu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Lulu Zang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Jiabao Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Jinjin Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Siqi Wang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Lili Zhou
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Huixin Song
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Yajing Ma
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Xiaofeng Niu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Weifeng Li
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, P.R. China
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Zhou L, He Y, Deng Y, Li X, Wang W, Chen J. Ciclopirox mitigates inflammatory response in LPS-induced septic shock via inactivation of SORT1-mediated wnt/β-Catenin signaling pathway. Immunopharmacol Immunotoxicol 2023; 45:701-708. [PMID: 37606515 DOI: 10.1080/08923973.2023.2231628] [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: 10/28/2022] [Accepted: 06/23/2023] [Indexed: 08/23/2023]
Abstract
OBJECTIVE Septic shock, the most severe stage of sepsis, is a deadly inflammatory disorder with high mortality. Ciclopirox (CPX) is a broad-spectrum antimycotic agent which also exerts anti-inflammatory effects in human diseases. However, whether CPX can relieve inflammatory response in LPS-induced septic shock remains unclear. MATERIALS AND METHODS Male C57BL/6 mice LPS were injected intraperitoneally with LPS to simulate septic shock in vivo. RAW264.7 cells and bone marrow-derived macrophages (BMDMs) were subject to LPS treatment to simulate septic shock in vitro. ELISA was applied to detect the level of pro-inflammatory cytokines. Cell viability was assessed by CCK-8 assay. Protein levels was detected by western blotting. RESULTS CPX enhanced the survival rate and attenuated inflammation in mice with LPS-induced septic shock. Similarly, CPX dose-dependently mitigated LPS-induced inflammation in BMDMs. It was also found that Sortilin 1 (SORT1) was upregulated in both in vivo and in vitro models of LPS-induced septic shock. In addition, SORT1 overexpression counteracted the alleviative effects of CPX on the inflammation response of LPS-challenged BMDMs by activating the Wnt/β-Catenin signaling. Furthermore, BML-284 (a Wnt/β-Catenin agonist) treatment also abrogated CPX-mediated moderation of LPS-triggered inflammatory reaction in BMDMs. CONCLUSIONS In sum, we found that CPX protected against LPS-induced septic shock by mitigating inflammation via SORT1-mediated Wnt/β-Catenin signaling pathway.
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Affiliation(s)
- Liangliang Zhou
- Department of Emergency Intensive Care Medicine and Department of Emergency Medicine, The Fourth Affiliated Hospital of Nantong University/The First People's Hospital of Yancheng, Yancheng, Jiangsu, China
| | - Yingfeng He
- Department of Emergency Intensive Care Medicine, The Fourth Affiliated Hospital of Nantong University/The First People's Hospital of Yancheng, Yancheng, Jiangsu, China
| | - Yijun Deng
- Department of Emergency Intensive Care Medicine, The Fourth Affiliated Hospital of Nantong University/The First People's Hospital of Yancheng, Yancheng, Jiangsu, China
| | - Xinxin Li
- Department of Emergency Intensive Care Medicine, The Fourth Affiliated Hospital of Nantong University/The First People's Hospital of Yancheng, Yancheng, Jiangsu, China
| | - Wei Wang
- Department of Emergency Intensive Care Medicine, The Fourth Affiliated Hospital of Nantong University/The First People's Hospital of Yancheng, Yancheng, Jiangsu, China
| | - Jianjun Chen
- Department of Emergency Intensive Care Medicine and Department of Emergency Medicine, The Fourth Affiliated Hospital of Nantong University/The First People's Hospital of Yancheng, Yancheng, Jiangsu, China
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Cao M, Cao A, Xing J, Zhang J, Zhu W, Wang Q, Cai L. Pickering emulsion stabilized by parasin I and chitosan nanoparticles enhances protection against intestinal microbiota homeostasis by reducing inflammation in peritonitis mice. Int J Biol Macromol 2023; 242:125016. [PMID: 37263085 DOI: 10.1016/j.ijbiomac.2023.125016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/03/2023]
Abstract
Although various researches evaluated the stability and drug loading efficiency of chitosan Pickering emulsion, few studies assessed the role and mechanism of emulsions in gut flora homeostasis. Thus, in the basics of our previously published natural and antimicrobial Pickering emulsions, the function of emulsion on the intestinal microbiota and inflammation response was explored in Kunming mice with peritonitis. The results showed that lipid/peptide nanoparticles emulsion (LPNE) and the chitosan peptide-embedded nanoparticles emulsion (CPENE) presented less collagen fiber than parasin I in peritoneal tissue, and CPENE could reduce peritoneal inflammation by decreasing the expression of NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3). The CPENE showed better histological morphology with a smaller fibrosis area in the spleen. Moreover, CPENE, LPNE, and parasin I-conjugated chitosan nanoparticle emulsion (PCNE) groups can increase the abundance of ABC transporters, DNA repair, and recombination proteins, and improve gut microbial. Furthermore, the Pickering emulsion showed a better protection effect on the composition and function of intestinal microbiota by decreasing interleukin-1β secretion and assembly of the inflammasome of NLRP3. These results could provide evidence for intestinal microbiota homeostasis of chitosan Pickering emulsion in inflammation-related diseases.
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Affiliation(s)
- Minjie Cao
- Ningbo Innovation Center, College of Biosystems Engineering and Food Science, Zhejiang University, Ningbo 315100, China; College of Biological and Chemical Engineering, Zhejiang Engineering Research Center for Intelligent Marine Ranch Equipment, NingboTech University, Ningbo 315100, China
| | - Ailing Cao
- Hangzhou Customs District, Hangzhou 310000, China.
| | - Jiali Xing
- Ningbo Academy of Product and Food Quality Inspection (Ningbo Fibre Inspection Institute), Ningbo 315000, China
| | - Jinjie Zhang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Wenrong Zhu
- Xiangshan Xuwen Seaweed Development Co., Ltd, Ningbo 315000, China
| | - Qiujuan Wang
- Ningbo Today Food Co., Ltd, Ningbo 315000, China
| | - Luyun Cai
- Ningbo Innovation Center, College of Biosystems Engineering and Food Science, Zhejiang University, Ningbo 315100, China; College of Biological and Chemical Engineering, Zhejiang Engineering Research Center for Intelligent Marine Ranch Equipment, NingboTech University, Ningbo 315100, China.
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Acrylamide inhibits long-term potentiation and learning involving microglia and pro-inflammatory signaling. Sci Rep 2022; 12:12429. [PMID: 35858988 PMCID: PMC9300615 DOI: 10.1038/s41598-022-16762-7] [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: 03/31/2022] [Accepted: 07/14/2022] [Indexed: 11/16/2022] Open
Abstract
Acrylamide is a chemical used in various industries and a product following high-temperature cooking of vegetables containing asparagine. Environmental or dietary exposure to acrylamide could impair cognitive function because of its neurotoxicity. Using rat hippocampal slices, we tested whether acrylamide alters induction of long-term potentiation (LTP), a cellular model of learning and memory. We hypothesized that acrylamide impairs cognitive function via activation of pro-inflammatory cytokines because robust upregulation of NLRP3 inflammasome has been reported. Although acrylamide up to 3 mM did not alter basal synaptic transmission, incubation with 10 μM or acute administration of 100 μM acrylamide inhibited induction of LTP. Inhibitors of toll-like receptor 4 (TLR4), and minocycline, an inhibitor of microglial activation, overcame the effects of acrylamide on LTP induction. Furthermore, we observed that acrylamide failed to inhibit LTP after administration of MCC950, an inhibitor of NLRP3, or in the presence of Interleukin-1 receptor antagonist (IL-1Ra). We also found that in vivo acrylamide injection transiently impaired body weight gain and impaired one-trial inhibitory avoidance learning. This learning deficit was overcome by MCC950. These results indicate that cognitive impairment by acrylamide is mediated by mechanisms involving microglia and release of cytokines via NLRP3 activation.
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Liao S, Luo J, Kadier T, Ding K, Chen R, Meng Q. Mitochondrial DNA Release Contributes to Intestinal Ischemia/Reperfusion Injury. Front Pharmacol 2022; 13:854994. [PMID: 35370747 PMCID: PMC8966724 DOI: 10.3389/fphar.2022.854994] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/02/2022] [Indexed: 12/12/2022] Open
Abstract
Mitochondria release many damage-associated molecular patterns (DAMPs) when cells are damaged or stressed, with mitochondrial DNA (mtDNA) being. MtDNA activates innate immune responses and induces inflammation through the TLR-9, NLRP3 inflammasome, and cGAS-STING signaling pathways. Released inflammatory factors cause damage to intestinal barrier function. Many bacteria and endotoxins migrate to the circulatory system and lymphatic system, leading to systemic inflammatory response syndrome (SIRS) and even damaging the function of multiple organs throughout the body. This process may ultimately lead to multiple organ dysfunction syndrome (MODS). Recent studies have shown that various factors, such as the release of mtDNA and the massive infiltration of inflammatory factors, can cause intestinal ischemia/reperfusion (I/R) injury. This destroys intestinal barrier function, induces an inflammatory storm, leads to SIRS, increases the vulnerability of organs, and develops into MODS. Mitophagy eliminates dysfunctional mitochondria to maintain cellular homeostasis. This review discusses mtDNA release during the pathogenesis of intestinal I/R and summarizes methods for the prevention or treatment of intestinal I/R. We also discuss the effects of inflammation and increased intestinal barrier permeability on drugs.
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Affiliation(s)
- Shishi Liao
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jie Luo
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tulanisa Kadier
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ke Ding
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Rong Chen
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China.,Department of Anesthesiology, East Hospital, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qingtao Meng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China.,Department of Anesthesiology, East Hospital, Renmin Hospital of Wuhan University, Wuhan, China
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Muromoto R, Oritani K, Matsuda T. Current understanding of the role of tyrosine kinase 2 signaling in immune responses. World J Biol Chem 2022; 13:1-14. [PMID: 35126866 PMCID: PMC8790287 DOI: 10.4331/wjbc.v13.i1.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 08/06/2021] [Accepted: 12/23/2021] [Indexed: 02/06/2023] Open
Abstract
Immune system is a complex network that clears pathogens, toxic substrates, and cancer cells. Distinguishing self-antigens from non-self-antigens is critical for the immune cell-mediated response against foreign antigens. The innate immune system elicits an early-phase response to various stimuli, whereas the adaptive immune response is tailored to previously encountered antigens. During immune responses, B cells differentiate into antibody-secreting cells, while naïve T cells differentiate into functionally specific effector cells [T helper 1 (Th1), Th2, Th17, and regulatory T cells]. However, enhanced or prolonged immune responses can result in autoimmune disorders, which are characterized by lymphocyte-mediated immune responses against self-antigens. Signal transduction of cytokines, which regulate the inflammatory cascades, is dependent on the members of the Janus family of protein kinases. Tyrosine kinase 2 (Tyk2) is associated with receptor subunits of immune-related cytokines, such as type I interferon, interleukin (IL)-6, IL-10, IL-12, and IL-23. Clinical studies on the therapeutic effects and the underlying mechanisms of Tyk2 inhibitors in autoimmune or chronic inflammatory diseases are currently ongoing. This review summarizes the findings of studies examining the role of Tyk2 in immune and/or inflammatory responses using Tyk2-deficient cells and mice.
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Affiliation(s)
- Ryuta Muromoto
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Kenji Oritani
- Department of Hematology, International University of Health and Welfare, Narita 286-8686, Japan
| | - Tadashi Matsuda
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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Wu H, Zeng R, Qiu X, Chen K, Zhuo Z, Guo K, Xiang Y, Yang Q, Jiang R, Leung FW, Lian Q, Sha W, Chen H. Investigating regulatory patterns of NLRP3 Inflammasome features and association with immune microenvironment in Crohn's disease. Front Immunol 2022; 13:1096587. [PMID: 36685554 PMCID: PMC9849378 DOI: 10.3389/fimmu.2022.1096587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 12/02/2022] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Crohn's disease is characterized of dysregulated inflammatory and immune reactions. The role of the NOD-like receptor family, pyrin domain-containing 3 (NLRP3) inflammasome in Crohn's disease remains largely unknown. METHODS The microarray-based transcriptomic data and corresponding clinical information of GSE100833 and GSE16879 were obtained from the Gene Expression Omnibus (GEO) database. Identification of in the NLRP3 inflammasome-related genes and construction of LASSO regression model. Immune landscape analysis was evaluated with ssGSEA. Classification of Crohn's-disease samples based on NLRP3 inflammasome-related genes with ConsensusClusterPlus. Functional enrichment analysis, gene set variation analysis (GSVA) and drug-gene interaction network. RESULTS The expressions of NLRP3 inflammasome-related genes were increased in diseased tissues, and higher expressions of NLRP3 inflammasome-related genes were correlated with generally enhanced immune cell infiltration, immune-related pathways and human leukocyte antigen (HLA)-gene expressions. The gene-based signature showed well performance in the diagnosis of Crohn's disease. Moreover, consensus clustering identified two Crohn's disease clusters based on NLRP3 inflammasome-related genes, and cluster 2 was with higher expressions of the genes. Cluster 2 demonstrated upregulated activities of immune environment in Crohn's disease. Furthermore, four key hub genes were identified and potential drugs were explored for the treatment of Crohn's disease. CONCLUSIONS Our findings indicate that NLRP3 inflammasome and its related genes could regulate immune cells and responses, as well as involve in the pathogenesis of Crohn's disease from transcriptomic aspects. These findings provide in silico insights into the diagnosis and treatment of Crohn's disease and might assist in the clinical decision-making process.
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Affiliation(s)
- Huihuan Wu
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Ruijie Zeng
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, Shantou University Medical College, Shantou, China
| | - Xinqi Qiu
- Zhuguang Community Healthcare Center, Guangzhou, China
| | - Kequan Chen
- Department of Gastroenterology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zewei Zhuo
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Kehang Guo
- Department of Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yawen Xiang
- Edinburgh Medical School, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Qi Yang
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Rui Jiang
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Felix W. Leung
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, United States
- *Correspondence: Felix W. Leung, ; Qizhou Lian, ; Weihong Sha, ; Hao Chen,
| | - Qizhou Lian
- Department of Medicine, Queen Mary Hospital, Hong Kong, Hong Kong SAR, China
- *Correspondence: Felix W. Leung, ; Qizhou Lian, ; Weihong Sha, ; Hao Chen,
| | - Weihong Sha
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- *Correspondence: Felix W. Leung, ; Qizhou Lian, ; Weihong Sha, ; Hao Chen,
| | - Hao Chen
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- *Correspondence: Felix W. Leung, ; Qizhou Lian, ; Weihong Sha, ; Hao Chen,
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Sun Y, Zhang L, Hong L, Zheng W, Cui J, Liu X, Xu T. MicroRNA-181b-2 and MicroRNA-21-1 Negatively Regulate NF-κB and IRF3-Mediated Innate Immune Responses via Targeting TRIF in Teleost. Front Immunol 2021; 12:734520. [PMID: 34956174 PMCID: PMC8695722 DOI: 10.3389/fimmu.2021.734520] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/22/2021] [Indexed: 12/21/2022] Open
Abstract
Upon recognition of bacterial or viral components by Toll-like receptors (TLRs), cells could be activated to induce a series of reactions to produce inflammatory cytokines, type I interferon (IFN), and IFN stimulating genes (ISG). MicroRNAs (miRNAs) are an important regulatory molecules that are widely involved in the regulatory networks of mammalian inflammation and immune responses; however, in lower vertebrates, the regulatory network of miRNA-mediated immune responses is poorly understood. Here, we report two miRNAs form Miichthys miiuy, namely, miR-181b-2 and miR-21-1, that play a negative role in host antiviral and antibacterial immunity. We found that miR-181b-2 and miR-21-1 are abundantly expressed in gram-negative bacteria, as well as RNA rhabdovirus infection. Inducible miR-181b-2 and miR-21-1 suppress the production of inflammatory cytokines and type I IFN by targeting TRIF, thereby avoiding excessive inflammation. We further revealed that miR-181b-2 and miR-21-1 modulate antibacterial and antiviral immunity through the TRIF-mediated NF-κB and IRF3 signaling pathways. The overall results indicate that miR-181b-2 and miR-21-1 act as negative feedback regulators and participate in host antibacterial and antiviral immune responses; this finding could provide information for a deeper understanding of the resistance of lower vertebrates to the invasion of pathogens and to avoidance of excessive immunity.
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Affiliation(s)
- Yuena Sun
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.,Laboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Lei Zhang
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Ling Hong
- School of Medicine, Tongji University, Shanghai, China
| | - Weiwei Zheng
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Junxia Cui
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Xuezhu Liu
- Laboratory of Fish Biogenetics & Immune Evolution, College of Marine Science, Zhejiang Ocean University, Zhoushan, China
| | - Tianjun Xu
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.,Laboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, Shanghai, China.,National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, Shanghai, China
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10
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Wei J, Xiang XH, Tang Y, Qin DL, Wu JM, Yu CL, Qiu WQ, Wu AG, Lv HB. Lychee seed polyphenol protects blood–retinal barrier by increasing tight joint proteins and inhibiting the activation of TLR4/MYD88/NF-κB-mediated NLRP3 inflammasome. FOOD AGR IMMUNOL 2021. [DOI: 10.1080/09540105.2021.1968352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Jing Wei
- Department of Ophthalmology, Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Xiao-Hong Xiang
- Department of Ophthalmology, Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Yong Tang
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, People’s Republic of China
| | - Da-Lian Qin
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Jian-Ming Wu
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Chong-Lin Yu
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Human Anatomy, School of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - Wen-Qiao Qiu
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
| | - An-Guo Wu
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, School of Pharmacy; Education Ministry Key Laboratory of Medical Electrophysiology; College of Preclinical Medicine, Southwest Medical University, Luzhou, People’s Republic of China
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
| | - Hong-Bin Lv
- Department of Ophthalmology, Affiliated Hospital of Southwest Medical University, Luzhou, People’s Republic of China
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Pan MX, Zheng CY, Deng YJ, Tang KR, Nie H, Xie JQ, Liu DD, Tu GF, Yang QH, Zhang YP. Hepatic protective effects of Shenling Baizhu powder, a herbal compound, against inflammatory damage via TLR4/NLRP3 signalling pathway in rats with nonalcoholic fatty liver disease. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2021; 19:428-438. [PMID: 34426178 DOI: 10.1016/j.joim.2021.07.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 05/18/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE High-fat diet (HFD) and inflammation are two key contributors to nonalcoholic fatty liver disease (NAFLD). Shenling Baizhu powder (SLBZP), a classical herbal compound, has been successfully used to alleviate NAFLD. However, its specific mechanisms are not fully understood. In this study, we assessed the anti-NAFLD effect of SLBZP in vivo. METHODS Rats were fed an HFD with or without SLBZP or with probiotics. At the end of week 16, an echo magnetic resonance imaging (EchoMRI) body composition analyser was used to quantitatively analyse body composition; a micro-computed tomography (micro-CT) imaging system was used to evaluate whole body and liver fat; and the Moor full-field laser perfusion imager 2 was used to assess liver microcirculation, after which, all rats were sacrificed. Then, biochemical indicators in the blood and the ultrastructure of rat livers were evaluated. Protein expression related to the liver Toll-like receptor 4 (TLR4)/Nod-like receptor family pyrin domain-containing 3 (NLRP3) signalling pathway was assessed using Western blot analysis. Further, high-throughput screening of 29 related inflammatory factors in liver tissue was performed using a cytokine array. RESULTS SLBZP supplementation reduced body weight, serum free fatty acid, and insulin resistance index (P < 0.05). It also ameliorated liver microcirculation and ultrastructural abnormalities. EchoMRI and micro-CT quantitative analyses showed that treatment with SLBZP reduced fat mass and visceral fat (P < 0.05 and P < 0.01, respectively). In addition, SLBZP decreased the expression of lipopolysaccharide (LPS)-activated TLR4/NLRP3 signalling pathway-related proteins and altered the expression levels of some inflammatory cytokines in liver tissues. CONCLUSION SLBZP can inhibit NLRP3 inflammasome activation and interleukin-1β release by suppressing LPS-induced TLR4 expression in rats with HFD-induced NAFLD. Thus, SLBZP may be beneficial for the prevention and treatment of inflammatory damage and associated diseases.
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Affiliation(s)
- Mao-Xing Pan
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Chui-Yang Zheng
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Yuan-Jun Deng
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Kai-Rui Tang
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Huan Nie
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Ji-Qian Xie
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Dong-Dong Liu
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Gui-Fang Tu
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China
| | - Qin-He Yang
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China.
| | - Yu-Pei Zhang
- School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, Guangdong Province, China.
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Toro DM, Ramasawmy R, Silva Neto PV, Pereira GL, Sarmento PS, Dray HLSN, Sousa KS, Affonso JS, Silva JA, Garcia NP, Barbieri MV, Victória FS, Donadi EA, Costa AG, Ogusku MM, Sadahiro A, Tarragô AM, Malheiro A. Inflammasome genes polymorphisms may influence the development of hepatitis C in the Amazonas, Brazil. PLoS One 2021; 16:e0253470. [PMID: 34161370 PMCID: PMC8221483 DOI: 10.1371/journal.pone.0253470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 06/06/2021] [Indexed: 12/31/2022] Open
Abstract
Hepatitis C is considered a major public health problem caused by the hepatitis C virus (HCV). Viral infections are known to induce production of IL1β through the signaling pathway of inflammasomes. Emerging evidences suggest that Inflammasome genes may influence the immune response against HCV as the host genetic background may contribute to the balance between acute and chronic inflammation. We investigated in 151 patients with chronic hepatitis C and 206 healthy blood donors’ individuals (HD). Polymorphisms in the IL1B and IL18 genes were genotyped by PCR-RFLP, while NLRP3, CARD8, CTSB and AIM2 by RT- PCR. Serum assay of IL-1β cytokine was performed by ELISA. 84 patients presented mild fibrosis (<F2) and 67 advanced fibrosis (≥ F2). Among the HD individuals the NLRP3-rs10754558 C/C genotype correlated with higher IL-1β levels compared to the G/G genotype. Similar pattern was observed in patients with hepatitis C, mean circulating IL-1β levels were 21,96 ± 4.5 and 10,62 ± 3.3pg/mL among the C/C and G/G genotypes, respectively. This pattern holds even after stratification of the patients into mild fibrosis and advanced fibrosis, demonstrating that the NLRP3-rs10754558 or another polymorphism in linkage disequilibrium with it possibly has an influence on the processing of pro-IL-1β. Notably, higher levels of IL-1β (Mann–Whitney test, p<0.0001) were observed among patients (mean ± SEM: 19,24 ±3.pg/mL) when compared with controls (mean ± SEM: 11,80 ±1.0pg/mL). Gene-gene interaction showed that individuals heterogyzotes for both CARD8-rs2009373 and IL1B-rs16944 are less prone to hepatitis C development (padj = 0.039). Similarly, herozygote carriers for CTSB-rs1692816 and AIM2-rs1103577 (padj = 0.008) or for IL18-rs187238 and NLRP3-rs10754558 (padj = 0.005), have less chances to the development of hepatitis C. However, between subgroups of <F2 and ≥F2, individuals homozygous for the T allele of CARD8-rs2009373 and heterozygous for IL18-rs187238 (padj = 0.028), have mild form of fibrosis.
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Affiliation(s)
- Diana Mota Toro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Faculdade de Medicina, Universidade Nilton Lins, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
| | - Pedro Vieira Silva Neto
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Grenda Leite Pereira
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Priscila Santos Sarmento
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | | | - Keyla Santos Sousa
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Juliana Santos Affonso
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Jéssica Albuquerque Silva
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
| | - Nadja Pinto Garcia
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
| | - Marilú Victória Barbieri
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Flamir Silva Victória
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Eduardo Antônio Donadi
- Programa de Pós-graduação em Imunologia Básica e Aplicada, Faculdade de Medicina da Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Allyson Guimarães Costa
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- * E-mail: (AGC); (AM)
| | - Mauricio Morishi Ogusku
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Aya Sadahiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
| | - Andréa Monteiro Tarragô
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Adriana Malheiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- * E-mail: (AGC); (AM)
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Nutrigenomics of Dietary Lipids. Antioxidants (Basel) 2021; 10:antiox10070994. [PMID: 34206632 PMCID: PMC8300813 DOI: 10.3390/antiox10070994] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/11/2021] [Accepted: 06/16/2021] [Indexed: 12/12/2022] Open
Abstract
Dietary lipids have a major role in nutrition, not only for their fuel value, but also as essential and bioactive nutrients. This narrative review aims to describe the current evidence on nutrigenomic effects of dietary lipids. Firstly, the different chemical and biological properties of fatty acids contained both in plant- and animal-based food are illustrated. A description of lipid bioavailability, bioaccessibility, and lipotoxicity is provided, together with an overview of the modulatory role of lipids as pro- or anti-inflammatory agents. Current findings concerning the metabolic impact of lipids on gene expression, epigenome, and gut microbiome in animal and human studies are summarized. Finally, the effect of the individual’s genetic make-up on lipid metabolism is described. The main goal is to provide an overview about the interaction between dietary lipids and the genome, by identifying and discussing recent scientific evidence, recognizing strengths and weaknesses, to address future investigations and fill the gaps in the current knowledge on metabolic impact of dietary fats on health.
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14
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Morales-Primo AU, Becker I, Zamora-Chimal J. Neutrophil extracellular trap-associated molecules: a review on their immunophysiological and inflammatory roles. Int Rev Immunol 2021; 41:253-274. [PMID: 34036897 DOI: 10.1080/08830185.2021.1921174] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Neutrophil extracellular traps (NETs) are a defense mechanism against pathogens. They are composed of DNA and various proteins and have the ability to hinder microbial spreading and survival. However, NETs are not only related to infections but also participate in sterile inflammatory events. In addition to DNA, NETs contain histones, serine proteases, cytoskeletal proteins and antimicrobial peptides, all of which have immunomodulatory properties that can augment or decrease the inflammatory response. Extracellular localization of these molecules alerts the immune system of cellular damage, which is triggered by recognition of damage-associated molecular patterns (DAMPs) through specific pattern recognition receptors. However, not all of these molecules are DAMPs and may have other immunophysiological properties in the extracellular space. The release of NETs can lead to production of pro-inflammatory cytokines (due to TLR2/4/9 and inflammasome activation), the destruction of the extracellular matrix, activation of serine proteases and of matrix metallopeptidases (MMPs), modulation of cellular proliferation, induction of cellular migration and adhesion, promotion of thrombogenesis and angiogenesis and disruption of epithelial and endothelial permeability. Understanding the dynamics of NET-associated molecules, either individually or synergically, will help to unravel their role in inflammatory events and open novel perspectives for potential therapeutic targets. We here review molecules contained within NETS and their immunophysiological roles.
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Affiliation(s)
- Abraham U Morales-Primo
- Laboratory of Immunoparasitology, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Hospital General de México, Mexico City, Mexico
| | - Ingeborg Becker
- Laboratory of Immunoparasitology, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Hospital General de México, Mexico City, Mexico
| | - Jaime Zamora-Chimal
- Laboratory of Immunoparasitology, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Hospital General de México, Mexico City, Mexico
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15
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Zhang J, Xu X, Chen H, Kang P, Zhu H, Ren H, Liu Y. Construction and analysis for dys-regulated lncRNAs and mRNAs in LPS-induced porcine PBMCs. Innate Immun 2021; 27:170-183. [PMID: 33504244 PMCID: PMC7882806 DOI: 10.1177/1753425920983869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are emerging as key regulators in inflammation. However, their functions and profiles in LPS-induced inflammation in pigs are largely unknown. In this study, we profiled global lncRNA and mRNA expression changes in PBMCs treated with LPS using the lncRNA-seq technique. In total 43 differentially expressed (DE) lncRNAs and 1082 DE mRNAs were identified in porcine PBMCs after LPS stimulation. Functional enrichment analysis on DE mRNAs indicated these genes were involved in inflammation-related signaling pathways, including cytokine–cytokine receptor interaction, TNF-α, NF-κB, Jak-STAT and TLR signaling pathways. In addition, co-expression network and function analysis identified the potential lncRNAs related to inflammatory response and immune response. The expressions of eight lncRNAs (ENSSSCT00000045208, ENSSSCT00000051636, ENSSSCT00000049770, ENSSSCT00000050966, ENSSSCT00000047491, ENSSSCT00000049750, ENSSSCT00000054262 and ENSSSCT00000044651) were validated in the LPS-treated PBMCs by quantitative real-time PCR (qRT-PCR). In LPS-challenged piglets, we identified that expression of three lncRNAs (ENSSSCT00000051636, ENSSSCT00000049770, and ENSSSCT00000047491) was significantly up-regulated in liver, spleen and jejunum tissues after LPS challenge, which indicated that these lncRNAs might be important regulators for inflammation. This study provides the first lncRNA and mRNA transcriptomic landscape of LPS-mediated changes in porcine PBMCs, which might provide potential insights into lncRNAs involved in regulating inflammation in pigs.
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Affiliation(s)
- Jing Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutrition Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Xin Xu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutrition Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Hongbo Chen
- Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutrition Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Ping Kang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutrition Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Huiling Zhu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutrition Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Hongyan Ren
- Hubei Key Laboratory of Animal Embryo Engineering and Molecular Breeding, Hubei Institute of Animal Science and Veterinary Medicine, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Yulan Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, School of Animal Science and Nutrition Engineering, Wuhan Polytechnic University, Wuhan, China
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16
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Zhang Y, Zhu P, Wu X, Yuan T, Su Z, Chen S, Zhou Y, Tao WA. Microcystin-LR Induces NLRP3 Inflammasome Activation via FOXO1 Phosphorylation, Resulting in Interleukin-1β Secretion and Pyroptosis in Hepatocytes. Toxicol Sci 2021; 179:53-69. [PMID: 33078829 DOI: 10.1093/toxsci/kfaa159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Microcystin-LR (MC-LR), the most common and toxic microcystin (MC) present in freshwater, poses a substantial threat to human health, especially hepatotoxicity. Recent evidence reveals that the NLRP3 inflammasome plays an important role in liver injury by activating caspase-1 to promote interleukin-1β (IL-1β) secretion. In this study, we investigated the possible role of NLRP3 inflammasome activation in MC-LR-induced mouse liver inflammatory injury. We found that MC-LR administered to mice by oral gavage mainly accumulated in liver and induced the activation of the NLRP3 inflammasome and production of mature IL-1β. Additionally, we observed an increase in the levels of NLRP3 inflammasome-related proteins and the proportion of pyroptosis in MC-LR-treated AML-12 cells. We also found that inhibition of NLRP3 in mice attenuated MC-LR-induced IL-1β production, indicating an essential role for NLRP3 in MC-LR-induced liver inflammatory injury. In addition, we found that inhibition of FOXO1 by AKT-mediated hyperphosphorylation, due to protein phosphatase 2A (PP2A) inhibition, is required for MC-LR-induced expression of NLRP3. Taken together, our in vivo and in vitro findings suggest a model in which the NLRP3 inflammasome activation, a result of AKT-mediated hyperphosphorylation of FOXO1 through inhibition of PP2A, plays a key role in MC-LR-induced liver inflammatory injury via IL-1β secretion and pyroptotic cell death.
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Affiliation(s)
- Yali Zhang
- Department of Biochemistry and Molecular Biology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, China
| | - Peipei Zhu
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907
| | - Xiaofeng Wu
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907
| | - Tianli Yuan
- Department of Biochemistry and Molecular Biology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, China
| | - Zhangyao Su
- Department of Biochemistry and Molecular Biology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, China
| | - Shiyin Chen
- Department of Biochemistry and Molecular Biology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, China
| | - Yajun Zhou
- Department of Biochemistry and Molecular Biology, School of Medicine, Nantong University, Nantong, Jiangsu 226001, China
| | - Weiguo Andy Tao
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907
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Yan CY, Ouyang SH, Wang X, Wu YP, Sun WY, Duan WJ, Liang L, Luo X, Kurihara H, Li YF, He RR. Celastrol ameliorates Propionibacterium acnes/LPS-induced liver damage and MSU-induced gouty arthritis via inhibiting K63 deubiquitination of NLRP3. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 80:153398. [PMID: 33130474 DOI: 10.1016/j.phymed.2020.153398] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/07/2020] [Accepted: 10/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Celastrol, a pentacyclic triterpenoid quinonemethide isolated from several spp. of Celastraceae family, exhibits anti-inflammatory activities in a variety of diseases including arthritis. PURPOSE This study aims to investigate whether the inhibition of NLRP3 inflammasome is engaged in the anti-inflammatory activities of celastrol and delineate the underlying mechanism. METHODS The influence of celastrol on NLRP3 inflammasome activation was firstly studied in lipopolysaccharide (LPS)-primed mouse bone marrow-derived macrophages (BMDMs) and phorbol 12-myristate 13-acetate (PMA)-primed THP-1 cells treated with nigericin. Reconstituted inflammasome was also established by co-transfecting NLRP3, ASC, pro-caspase-1 and pro-IL-1β in HEK293T cells. The changes of inflammasome components including NLRP3, ASC, pro-caspase-1/caspase-1 and pro-IL-1β/IL-1β were examined by enzyme-linked immunosorbent assay (ELISA), western blotting and immunofluorescence. Furthermore, Propionibacterium acnes (P. acnes)/LPS-induced liver injury and monosodium urate (MSU)-induced gouty arthritis in mice were employed in vivo to validate the inhibitory effect of celastrol on NLRP3 inflammasome. RESULTS Celastrol significantly suppressed the cleavage of pro-caspase-1 and pro-IL-1β, while not affecting the protein expressions of NLRP3, ASC, pro-caspase-1 and pro-IL-1β in THP-1 cells, BMDMs and HEK293T cells. Celastrol suppressed NLRP3 inflammasome activation and alleviated P. acnes/LPS-induced liver damage and MSU-induced gouty arthritis. Mechanism study revealed that celastrol could interdict K63 deubiquitination of NLRP3, which may concern interaction of celastrol and BRCA1/BRCA2-containing complex subunit 3 (BRCC3), and thereby prohibited the formation of NLRP3, ASC and pro-caspase-1 complex to block the generation of mature IL-1β. CONCLUSION Celastrol suppresses NLRP3 inflammasome activation in P. acnes/LPS-induced liver damage and MSU-induced gouty arthritis via inhibiting K63 deubiquitination of NLRP3, which presents a novel insight into inhibition of celastrol on NLRP3 inflammasome and provides more evidences for its application in the therapy of inflammation-related diseases.
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Affiliation(s)
- Chang-Yu Yan
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Perfect Institute for Health Science & Technology, Ltd., Zhongshan 528400, China
| | - Shu-Hua Ouyang
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xi Wang
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yan-Ping Wu
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Wan-Yang Sun
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Wen-Jun Duan
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Lei Liang
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xiang Luo
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Hiroshi Kurihara
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Perfect Institute for Health Science & Technology, Ltd., Zhongshan 528400, China
| | - Yi-Fang Li
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.
| | - Rong-Rong He
- Guangdong Province Research and Development Center for Chinese Medicine in Disease Susceptibility, College of Pharmacy, Jinan University, Guangzhou 510632, China; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.
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Al Mamun A, Akter A, Hossain S, Sarker T, Safa SA, Mustafa QG, Muhammad SA, Munir F. Role of NLRP3 inflammasome in liver disease. J Dig Dis 2020; 21:430-436. [PMID: 32585073 DOI: 10.1111/1751-2980.12918] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 05/17/2020] [Accepted: 06/23/2020] [Indexed: 12/11/2022]
Abstract
Inflammasomes have become an important natural sensor of host immunity, and can protect various organs against pathogenic infections, metabolic syndromes, cellular stress and cancer metastasis. Inflammasomes are intracellular multi-protein complexes found in both parenchymal and non-parenchymal cells, stimulating the initiation of caspase-1 and interleukin (IL)-1β and IL-18 in response to cell danger signals. Inflammasomes induce cell death mechanisms. The potential role of NOD-like receptor protein 3 (NLRP3) inflammasome in alcoholic and non-alcoholic steatohepatitis, hepatitis, nanoparticle-induced liver injury and other liver diseases has recently attracted widespread attention from clinicians and researchers. In this review we summarize the role played by the NLRP3 inflammasome in molecular and pathophysiological mechanisms in the pathogenesis and progression of liver disease. This article aims to establish that targeting the NLRP3 inflammasome and other inflammasome components may make a significant therapeutic approach to the treatment of liver disease.
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Afroza Akter
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Sukria Hossain
- Department of Pharmacy, North South University, Dhaka, Bangladesh
| | - Tamanna Sarker
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
| | | | - Quazi G Mustafa
- School of International Studies, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Syed A Muhammad
- Institute of Molecular Biology and Biotechnology, Bahaudin Zakariya University, Multan, Pakistan
| | - Fahad Munir
- Department of Hepatobiliary Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
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Focus on the Role of NLRP3 Inflammasome in Diseases. Int J Mol Sci 2020; 21:ijms21124223. [PMID: 32545788 PMCID: PMC7352196 DOI: 10.3390/ijms21124223] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/25/2022] Open
Abstract
Inflammation is a protective reaction activated in response to detrimental stimuli, such as dead cells, irritants or pathogens, by the evolutionarily conserved immune system and is regulated by the host. The inflammasomes are recognized as innate immune system sensors and receptors that manage the activation of caspase-1 and stimulate inflammation response. They have been associated with several inflammatory disorders. The NLRP3 inflammasome is the most well characterized. It is so called because NLRP3 belongs to the family of nucleotide-binding and oligomerization domain-like receptors (NLRs). Recent evidence has greatly improved our understanding of the mechanisms by which the NLRP3 inflammasome is activated. Additionally, increasing data in animal models, supported by human studies, strongly implicate the involvement of the inflammasome in the initiation or progression of disorders with a high impact on public health, such as metabolic pathologies (obesity, type 2 diabetes, atherosclerosis), cardiovascular diseases (ischemic and non-ischemic heart disease), inflammatory issues (liver diseases, inflammatory bowel diseases, gut microbiome, rheumatoid arthritis) and neurologic disorders (Parkinson’s disease, Alzheimer’s disease, multiple sclerosis, amyotrophic lateral sclerosis and other neurological disorders), compared to other molecular platforms. This review will provide a focus on the available knowledge about the NLRP3 inflammasome role in these pathologies and describe the balance between the activation of the harmful and beneficial inflammasome so that new therapies can be created for patients with these diseases.
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Microbiome composition comparison in oral and atherosclerotic plaque from patients with and without periodontitis. Odontology 2020; 109:239-249. [PMID: 32430725 DOI: 10.1007/s10266-020-00524-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/07/2020] [Indexed: 12/13/2022]
Abstract
There is no conclusive evidence regarding a causal relationship between periodontitis and atherosclerosis. In this study, we examined the microbiome in the oral cavity and atheromatous plaques from atherosclerosis patients with or without periodontitis to investigate the role of oral bacteria in the formation of atheromatous plaques. We chose four patients with and without periodontitis, who had undergone carotid endarterectomy. Bacterial samples were extracted from the tongue surface, from periodontal pocket (during the oral examination), and from the atheromatous plaques (APs). We investigated the general and oral conditions from each patient and performed next-generation sequencing (NGS) analysis for all bacterial samples. There were no significant differences between both groups concerning general conditions. However, the microbiome patterns of the gingival pocket showed differences depending on the absence or presence of periodontitis, while those of the tongue surface were relatively similar. The microbiome pattern of the atheromatous plaques was entirely different from that on the tongue surface and gingival pocket, and oral bacteria were seldom detected. However, the microbiome pattern in atheromatous plaques was different in the presence or absence of periodontitis. These results suggested that oral bacteria did not affect the formation of atheromatous plaques directly.
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21
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Aron-Wisnewsky J, Warmbrunn MV, Nieuwdorp M, Clément K. Nonalcoholic Fatty Liver Disease: Modulating Gut Microbiota to Improve Severity? Gastroenterology 2020; 158:1881-1898. [PMID: 32044317 DOI: 10.1053/j.gastro.2020.01.049] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/13/2020] [Accepted: 01/13/2020] [Indexed: 02/06/2023]
Abstract
Gut microbiota plays a role in the pathophysiology of metabolic diseases, which include nonalcoholic fatty liver diseases, through the gut-liver axis. To date, clinical guidelines recommend a weight loss goal of 7%-10% to improve features of nonalcoholic fatty liver diseases. Because this target is not easily achieved by all patients, alternative therapeutic options are currently being evaluated. This review focuses on therapeutics that aim to modulate the gut microbiota and the gut-liver axis. We discuss how probiotics, prebiotics, synbiotic, fecal microbiota transfer, polyphenols, specific diets, and exercise interventions have been found to modify gut microbiota signatures; improve nonalcoholic fatty liver disease outcomes; and detail, when available, the different mechanisms by which these beneficial outcomes might occur. Apart from probiotics that have already been tested in human randomized controlled trials, most of these potential therapeutics have been studied in animals. Their efficacy still warrants confirmation in humans using appropriate design.
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Affiliation(s)
- Judith Aron-Wisnewsky
- Sorbonne Université, INSERM, UMRS U1269, Nutriomics Research Unit, Paris, France; Nutrition Department, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Centre de Recherche en Nutrition Humaine d'Ile de France, Paris, France; Department of Vascular Medicine, University of Amsterdam Medical Center, Amsterdam, The Netherlands.
| | - Moritz V Warmbrunn
- Department of Vascular Medicine, University of Amsterdam Medical Center, Amsterdam, The Netherlands
| | - Max Nieuwdorp
- Department of Vascular Medicine, University of Amsterdam Medical Center, Amsterdam, The Netherlands; Department of Internal Medicine, University of Amsterdam Medical Center, Free University, Amsterdam, The Netherlands
| | - Karine Clément
- Sorbonne Université, INSERM, UMRS U1269, Nutriomics Research Unit, Paris, France; Nutrition Department, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Centre de Recherche en Nutrition Humaine d'Ile de France, Paris, France.
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22
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Danger-associated extracellular ATP counters MDSC therapeutic efficacy in acute GVHD. Blood 2020; 134:1670-1682. [PMID: 31533918 DOI: 10.1182/blood.2019001950] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 08/24/2019] [Indexed: 02/07/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) can subdue inflammation. In mice with acute graft-versus-host disease (GVHD), donor MDSC infusion enhances survival that is only partial and transient because of MDSC inflammasome activation early posttransfer, resulting in differentiation and loss of suppressor function. Here we demonstrate that conditioning regimen-induced adenosine triphosphate (ATP) release is a primary driver of MDSC dysfunction through ATP receptor (P2x7R) engagement and NLR pyrin family domain 3 (NLRP3) inflammasome activation. P2x7R or NLRP3 knockout (KO) donor MDSCs provided significantly higher survival than wild-type (WT) MDSCs. Although in vivo pharmacologic targeting of NLRP3 or P2x7R promoted recipient survival, indicating in vivo biologic effects, no synergistic survival advantage was seen when combined with MDSCs. Because activated inflammasomes release mature interleukin-1β (IL-1β), we expected that IL-1β KO donor MDSCs would be superior in subverting GVHD, but such MDSCs proved inferior relative to WT. IL-1β release and IL-1 receptor expression was required for optimal MDSC function, and exogenous IL-1β added to suppression assays that included MDSCs increased suppressor potency. These data indicate that prolonged systemic NLRP3 inflammasome inhibition and decreased IL-1β could diminish survival in GVHD. However, loss of inflammasome activation and IL-1β release restricted to MDSCs rather than systemic inhibition allowed non-MDSC IL-1β signaling, improving survival. Extracellular ATP catalysis with peritransplant apyrase administered into the peritoneum, the ATP release site, synergized with WT MDSCs, as did regulatory T-cell infusion, which we showed reduced but did not eliminate MDSC inflammasome activation, as assessed with a novel inflammasome reporter strain. These findings will inform future clinical using MDSCs to decrease alloresponses in inflammatory environments.
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Zhang J, Xu X, Huang X, Zhu H, Chen H, Wang W, Liu Y. Analysis of microRNA expression profiles in porcine PBMCs after LPS stimulation. Innate Immun 2020; 26:435-446. [PMID: 31969027 PMCID: PMC7903524 DOI: 10.1177/1753425920901560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In the present study, we used microRNA (miRNA) sequencing to discover and explore
the expression profiles of known and novel miRNAs in 1000 ng/ml LPS stimulated
for 8 h vis-à-vis non-stimulated (i.e. control) PBMCs isolated from the blood of
healthy pigs. A total of 291 known miRNAs were bio-computationally identified in
porcine PBMCs, and 228 novel miRNAs (not enlisted in the swine mirBase) were
identified. Among these miRNAs, ssc-miR-148a-3p, ssc-let-7g, ssc-let-7f, 3_8760,
ssc-miR-26a, ssc-miR-451, ssc-miR-21, ssc-miR-30d, ssc-miR-99a and ssc-miR-103
were the top 10 most abundant miRNAs in porcine PBMCs. Through miRNA
differential analysis combined with quantitative PCR, we found the expressions
of ssc-miR-122, ssc-miR-129b, ssc-miR-17-5p and ssc-miR-152 were significantly
changed in porcine PBMCs after LPS stimulation. Furthermore, targets prediction
and function analysis indicated a significant enrichment in gene ontology
functional categories related to diseases, immunity and inflammation. In
conclusion, this study on profiling of miRNAs expressed in LPS-stimulated PBMCs
provides an important reference point for future studies on regulatory roles of
miRNAs in porcine immune system.
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Affiliation(s)
- Jing Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Xin Xu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Xingfa Huang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plants in Wuling Area of China, South-Central University for Nationalities, PR China
| | - Huiling Zhu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Hongbo Chen
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
| | - Wenjun Wang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plants in Wuling Area of China, South-Central University for Nationalities, PR China
| | - Yulan Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, PR China
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Mo Z, Tang C, Li H, Lei J, Zhu L, Kou L, Li H, Luo S, Li C, Chen W, Zhang L. Eicosapentaenoic acid prevents inflammation induced by acute cerebral infarction through inhibition of NLRP3 inflammasome activation. Life Sci 2019; 242:117133. [PMID: 31830477 DOI: 10.1016/j.lfs.2019.117133] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/27/2019] [Accepted: 11/29/2019] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Acute cerebral infarction (ACI) is the most common type of acute cerebrovascular diseases resulting in high rate of death and disability. Numerous evidences show that inflammation is the leading cause of ischemic brain injury, thus anti-inflammatory therapy is an attractive candidate for ischemic brain damage. Eicosapentaenoic acid (EPA) exerts anti-inflammatory activity in lots of human inflammatory diseases, whereas its effect in ACI is left to elucidate. METHOD Nlpr3-/- mice, Gpr40-/-; Gpr120-/- mice and mice with right middle cerebral artery occlusion (MCAO) were used to detect NLR family pyrin domain containing 3 (NLRP3) inflammasome activation by Western Blot and the release of proinflammatory cytokines by ELISA. To estimate the acute ischemic condition in vitro, oxygen-glucose deprivation (OGD) was induced in BV2 microglia cells. Transfection of the shRNA targeting GPR40 and GPR120 mRNA into BV2 cells was also assessed. Apoptosis in ischemic cerebral tissues and BV2 cells was detected by terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay and flow cytometry. RESULT Here we show that EPA suppresses ACI-induced inflammatory responses through blocking NLRP3 inflammasome activation. In addition, EPA inhibits NLRP3 inflammasome activation through G protein-coupled receptor 40 (GPR40) and GPR120. Importantly, EPA ameliorates ACI-induced apoptosis. CONCLUSION EPA exerts beneficial effect on ACI-induced inflammation through blocking NLRP3 inflammasome activation by GPR40 and GPR120. Our findings suggest the potential clinical use of EPA in ACI.
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Affiliation(s)
- Zhihuai Mo
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China
| | - Chaogang Tang
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China; Department of Neurology, Maoming People's Hospital, 525000, Guangdong, China
| | - Huiqing Li
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China
| | - Junjie Lei
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China
| | - Lingjuan Zhu
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China
| | - Li Kou
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China
| | - Hao Li
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China; Department of Neurology, Maoming People's Hospital, 525000, Guangdong, China
| | - Shijian Luo
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China
| | - Chunyi Li
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China
| | - Wenli Chen
- Department of Pharmacology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China.
| | - Lei Zhang
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, 519000, Guangdong, China.
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Zhang J, Xu X, Zhu H, Wang Y, Hou Y, Liu Y. Dietary fish oil supplementation alters liver gene expressions to protect against LPS-induced liver injury in weanling piglets. Innate Immun 2019; 25:60-72. [PMID: 30782046 PMCID: PMC6830890 DOI: 10.1177/1753425918821420] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Here, the potential mechanisms of the protective effects of fish oil against
LPS-induced liver injury in a piglet model were investigated by using RNA
sequencing. Twenty-four piglets were used in a 2 × 2 factorial design, and the
main factors included diet (5% corn oil or 5% fish oil) and immunological
challenge (LPS or saline, on d 19). All piglets were slaughtered at 4 h after
challenge, and liver samples were collected. Fish oil improved liver morphology
and reduced TNF-α, IL-1β and IL-6 productions after LPS challenge. RNA
sequencing analysis showed fish oil had significant effect on the expressions of
genes involved in immune response during LPS-induced inflammation. Selected gene
expression changes were validated using quantitative RT-PCR. Fish oil reduced
the expressions of pro-inflammatory genes IL1R1,
IL1RAP, CEBPB and CRP,
and increased that of anti-inflammatory genes IL-18BP,
NFKBIA, IFIT1, IFIT2 and
ATF3. Moreover, fish oil restored the expressions of some
lipid metabolism-related genes, such as ACAA1,
ACACA, ACADS and ACADM,
which were only decreased in pigs fed a corn oil diet after LPS challenge. Our
RNA sequencing reveals novel gene-nutrient interactions following fish oil
supplementation and evoked inflammation, which add to the current understanding
of the benefits of n-3 polyunsaturated fatty acids against liver injury.
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Affiliation(s)
- Jing Zhang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
| | - Xin Xu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
| | - Huiling Zhu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
| | - Yang Wang
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
| | - Yongqing Hou
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
| | - Yulan Liu
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan, China
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Liang S, Zhong Z, Kim SY, Uchiyama R, Roh YS, Matsushita H, Gottlieb RA, Seki E. Murine macrophage autophagy protects against alcohol-induced liver injury by degrading interferon regulatory factor 1 (IRF1) and removing damaged mitochondria. J Biol Chem 2019; 294:12359-12369. [PMID: 31235522 DOI: 10.1074/jbc.ra119.007409] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 06/12/2019] [Indexed: 12/17/2022] Open
Abstract
Excessive alcohol consumption induces intestinal dysbiosis of the gut microbiome and reduces gut epithelial integrity. This often leads to portal circulation-mediated translocation of gut-derived microbial products, such as lipopolysaccharide (LPS), to the liver, where these products engage Toll-like receptor 4 (TLR4) and initiate hepatic inflammation, which promotes alcoholic liver disease (ALD). Although the key self-destructive process of autophagy has been well-studied in hepatocytes, its role in macrophages during ALD pathogenesis remains elusive. Using WT and myeloid cell-specific autophagy-related 7 (Atg7) knockout (Atg7 ΔMye) mice, we found that chronic ethanol feeding for 6 weeks plus LPS injection enhances serum alanine aminotransferase and IL-1β levels and augments hepatic C-C motif chemokine ligand 5 (CCL5) and C-X-C motif chemokine ligand 10 (CXCL10) expression in WT mice, a phenotype that was further exacerbated in Atg7 ΔMye mice. Atg7 ΔMye macrophages exhibited defective mitochondrial respiration and displayed elevated mitochondrial reactive oxygen species production and inflammasome activation relative to WT cells. Interestingly, compared with WT cells, Atg7 ΔMye macrophages also had a drastically increased abundance and nuclear translocation of interferon regulatory factor 1 (IRF1) after LPS stimulation. Mechanistically, LPS induced co-localization of IRF1 with the autophagy adaptor p62 and the autophagosome, resulting in subsequent IRF1 degradation. However, upon p62 silencing or Atg7 deletion, IRF1 started to accumulate in autophagy-deficient macrophages and translocated into the nucleus, where it induced CCL5 and CXCL10 expression. In conclusion, macrophage autophagy protects against ALD by promoting IRF1 degradation and removal of damaged mitochondria, limiting macrophage activation and inflammation.
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Affiliation(s)
- Shuang Liang
- Division of Gastroenterology, Department of Medicine, University of California San Diego School of Medicine, La Jolla, California 92093; Department of Immunology, University of Texas Southwestern Medical Center, Dallas Texas 75390
| | - Zhenyu Zhong
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas Texas 75390
| | - So Yeon Kim
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California 90048
| | - Ryosuke Uchiyama
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California 90048
| | - Yoon Seok Roh
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California 90048; Department of Pharmacy, Chungbuk National University College of Pharmacy, Cheongju, Chungbuk 28160, South Korea
| | - Hiroshi Matsushita
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California 90048
| | - Roberta A Gottlieb
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California 90048; Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California 90048
| | - Ekihiro Seki
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California 90048; Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, California 90048.
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Silva KR, Baptista LS. Adipose-derived stromal/stem cells from different adipose depots in obesity development. World J Stem Cells 2019; 11:147-166. [PMID: 30949294 PMCID: PMC6441940 DOI: 10.4252/wjsc.v11.i3.147] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 01/27/2019] [Accepted: 02/28/2019] [Indexed: 02/06/2023] Open
Abstract
The increasing prevalence of obesity is alarming because it is a risk factor for cardiovascular and metabolic diseases (such as type 2 diabetes). The occurrence of these comorbidities in obese patients can arise from white adipose tissue (WAT) dysfunctions, which affect metabolism, insulin sensitivity and promote local and systemic inflammation. In mammals, WAT depots at different anatomical locations (subcutaneous, preperitoneal and visceral) are highly heterogeneous in their morpho-phenotypic profiles and contribute differently to homeostasis and obesity development, depending on their ability to trigger and modulate WAT inflammation. This heterogeneity is likely due to the differential behavior of cells from each depot. Numerous studies suggest that adipose-derived stem/stromal cells (ASC; referred to as adipose progenitor cells, in vivo) with depot-specific gene expression profiles and adipogenic and immunomodulatory potentials are keys for the establishment of the morpho-functional heterogeneity between WAT depots, as well as for the development of depot-specific responses to metabolic challenges. In this review, we discuss depot-specific ASC properties and how they can contribute to the pathophysiology of obesity and metabolic disorders, to provide guidance for researchers and clinicians in the development of ASC-based therapeutic approaches.
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Affiliation(s)
- Karina Ribeiro Silva
- Laboratory of Tissue Bioengineering, Directory of Metrology Applied to Life Sciences, National Institute of Metrology, Quality and Technology, Duque de Caxias, RJ 25250-020, Brazil
- Post-Graduation Program of Biotechnology, National Institute of Metrology, Quality and Technology, Duque de Caxias, RJ 25250-020, Brazil
| | - Leandra Santos Baptista
- Laboratory of Tissue Bioengineering, Directory of Metrology Applied to Life Sciences, National Institute of Metrology, Quality and Technology, Duque de Caxias, RJ 25250-020, Brazil
- Post-Graduation Program of Biotechnology, National Institute of Metrology, Quality and Technology, Duque de Caxias, RJ 25250-020, Brazil
- Multidisciplinary Center for Biological Research (Numpex-Bio), Federal University of Rio de Janeiro Campus Duque de Caxias, Duque de Caxias, RJ 25245-390, Brazil
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Interleukin-18 in Health and Disease. Int J Mol Sci 2019; 20:ijms20030649. [PMID: 30717382 PMCID: PMC6387150 DOI: 10.3390/ijms20030649] [Citation(s) in RCA: 284] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/12/2022] Open
Abstract
Interleukin (IL)-18 was originally discovered as a factor that enhanced IFN-γ production from anti-CD3-stimulated Th1 cells, especially in the presence of IL-12. Upon stimulation with Ag plus IL-12, naïve T cells develop into IL-18 receptor (IL-18R) expressing Th1 cells, which increase IFN-γ production in response to IL-18 stimulation. Therefore, IL-12 is a commitment factor that induces the development of Th1 cells. In contrast, IL-18 is a proinflammatory cytokine that facilitates type 1 responses. However, IL-18 without IL-12 but with IL-2, stimulates NK cells, CD4+ NKT cells, and established Th1 cells, to produce IL-3, IL-9, and IL-13. Furthermore, together with IL-3, IL-18 stimulates mast cells and basophils to produce IL-4, IL-13, and chemical mediators such as histamine. Therefore, IL-18 is a cytokine that stimulates various cell types and has pleiotropic functions. IL-18 is a member of the IL-1 family of cytokines. IL-18 demonstrates a unique function by binding to a specific receptor expressed on various types of cells. In this review article, we will focus on the unique features of IL-18 in health and disease in experimental animals and humans.
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Yu J, Liu L, Zhang H, Wu Y, Pei H, Ma L, Xiong A, Xie C. SKLB023 protects mice against acute liver injury by inhibiting proinflammatory cytokine production in both T cells and macrophages. RSC Adv 2018; 8:33338-33346. [PMID: 35548127 PMCID: PMC9086442 DOI: 10.1039/c8ra03720e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/14/2018] [Indexed: 02/05/2023] Open
Abstract
Acute liver failure is a severe clinical syndrome accompanied with excessive inflammatory response. Our previous study demonstrated that SKLB023, a novel thiazolidinedione derivative, showed potent anti-inflammatory activity in rheumatoid arthritis. The purpose of the present study is to evaluate the protective effect of SKLB023 on lipopolysaccharide (LPS)/D-GalN-induced liver failure and to explore the underlying molecular mechanisms. Our results showed that SKLB023 significantly improved mortality and liver injury as indicated by reduced serum levels of aminotransferases and alleviated pathological damage. Additionally, SKLB023 decreased the percentage of activated T cells and macrophages as well as the serum levels of cytokines in vivo. Furthermore, SKLB023 decreased levels of TNF-α and IL-6 secreted from liver macrophages (Kupffer cells) stimulated by LPS in vitro. Our results indicated that the protective effects of SKLB023 were associated with its significant impact on the inflammatory cytokines, which were produced by both T cells and macrophages. A novel thiazolidinedione derivative SKLB023 offers a potent therapeutic strategy for the treatment of acute liver failure.![]()
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Affiliation(s)
- Jia Yu
- Department of Pharmacy, The Third Affiliated Hospital of Nanchang University Nanchang Jiangxi China
| | - Lili Liu
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University Nanchang Jiangxi China
| | - Huiming Zhang
- Department of Pharmacy, The Third Affiliated Hospital of Nanchang University Nanchang Jiangxi China
| | - Yating Wu
- School of Basic Medical Sciences, Nanchang University 999 Xuefu Road, Honggutang New District Nanchang Jiangxi 330031 China +86-791-83827160 +86-791-83827160
| | - Heying Pei
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University Chengdu China
| | - Liang Ma
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University Chengdu China
| | - Anwen Xiong
- Department of Medical Oncology, Shanghai Pulmonary Hospital & Thoracic Cancer Institute, Tongji University School of Medicine Shanghai China
| | - Caifeng Xie
- School of Basic Medical Sciences, Nanchang University 999 Xuefu Road, Honggutang New District Nanchang Jiangxi 330031 China +86-791-83827160 +86-791-83827160.,State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University Chengdu China
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Qu J, Tao XY, Teng P, Zhang Y, Guo CL, Hu L, Qian YN, Jiang CY, Liu WT. Blocking ATP-sensitive potassium channel alleviates morphine tolerance by inhibiting HSP70-TLR4-NLRP3-mediated neuroinflammation. J Neuroinflammation 2017; 14:228. [PMID: 29178967 PMCID: PMC5702153 DOI: 10.1186/s12974-017-0997-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 11/07/2017] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Long-term use of morphine induces analgesic tolerance, which limits its clinical efficacy. Evidence indicated morphine-evoked neuroinflammation mediated by toll-like receptor 4 (TLR4) - NOD-like receptor protein 3 (NLRP3) inflammasome was important for morphine tolerance. In our study, we investigated whether other existing alternative pathways caused morphine-induced activation of TLR4 in microglia. We focused on heat shock protein 70 (HSP70), a damage-associated molecular pattern (DAMP), which was released from various cells upon stimulations under the control of KATP channel and bound with TLR4-inducing inflammation. Glibenclamide, a classic KATP channel blocker, can improve neuroinflammation by inhibiting the activation of NLRP3 inflammasome. Our present study investigated the effect and possible mechanism of glibenclamide in improving morphine tolerance via its specific inhibition on the release of HSP70 and activation of NLRP3 inflammasome induced by morphine. METHODS CD-1 mice were used for tail-flick test to evaluate morphine tolerance. The microglial cell line BV-2 and neural cell line SH-SY5Y were used to investigate the pharmacological effects and the mechanism of glibenclamide on morphine-induced neuroinflammation. The activation of microglia was accessed by immunofluorescence staining. Neuroinflammation-related cytokines were measured by western blot and real-time PCR. The level of HSP70 and related signaling pathway were evaluated by western blot and immunofluorescence staining. RESULTS Morphine induced the release of HSP70 from neurons. The released HSP70 activated microglia and triggered TLR4-mediated inflammatory response, leading to the phosphorylation of p38 mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) p65 and the activation of NLRP3 inflammasome. Moreover, anti-HSP70 neutralizing antibody partly attenuated chronic morphine tolerance. The secretion of HSP70 was under the control of MOR/AKT/KATP/ERK signal pathway. Glibenclamide as a classic KATP channel blocker markedly inhibited the release of HSP70 induced by morphine and suppressed HSP70-TLR4-NLRP3 inflammasome-mediated neuroinflammation, which consequently attenuated morphine tolerance. CONCLUSIONS Our study indicated that morphine-induced extracellular HSP70 was an alternative way for the activation of TLR4-NLRP3 in analgesic tolerance. The release of HSP70 was regulated by MOR/AKT/KATP/ERK pathway. Our study suggested a promising target, KATP channel and a new leading compound, glibenclamide, for treating morphine tolerance.
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Affiliation(s)
- Jie Qu
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China
| | - Xue-You Tao
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China.,Department of Anesthesiology, Yangzhou Maternal and Child Health Hospital Affiliated with Yangzhou Medical University, Yangzhou, China.,Department of Anesthesiology, 1st Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Peng Teng
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China
| | - Yan Zhang
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China.,Research Division of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Ci-Liang Guo
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China
| | - Liang Hu
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China
| | - Yan-Ning Qian
- Department of Anesthesiology, 1st Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Chun-Yi Jiang
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China.
| | - Wen-Tao Liu
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, 101 Longmian Avenue, Nanjing, Jiangsu, 211166, China. .,Department of Pharmacy, Sir Run Run Shaw Hospital Affiliated to Nanjing Medical University, Nanjing, China.
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Ralston JC, Lyons CL, Kennedy EB, Kirwan AM, Roche HM. Fatty Acids and NLRP3 Inflammasome-Mediated Inflammation in Metabolic Tissues. Annu Rev Nutr 2017; 37:77-102. [PMID: 28826373 DOI: 10.1146/annurev-nutr-071816-064836] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Worldwide obesity rates have reached epidemic proportions and significantly contribute to the growing prevalence of metabolic diseases. Chronic low-grade inflammation, a hallmark of obesity, involves immune cell infiltration into expanding adipose tissue. In turn, obesity-associated inflammation can lead to complications in other metabolic tissues (e.g., liver, skeletal muscle, pancreas) through lipotoxicity and inflammatory signaling networks. Importantly, although numerous signaling pathways are known to integrate metabolic and inflammatory processes, the nucleotide-binding and oligomerization domain-like receptor, leucine-rich repeat and pyrin domain-containing 3 (NLRP3) inflammasome is now noted to be a key regulator of metabolic inflammation. The NLRP3 inflammasome can be influenced by various metabolites, including fatty acids. Specifically, although saturated fatty acids may promote NLRP3 inflammasome activation, monounsaturated fatty acids and polyunsaturated fatty acids have recently been shown to impede NLRP3 activity. Therefore, the NLRP3 inflammasome and associated metabolic inflammation have key roles in the relationships among fatty acids, metabolites, and metabolic disease. This review focuses on the ability of fatty acids to influence inflammation and the NLRP3 inflammasome across numerous metabolic tissues in the body. In addition, we explore some perspectives for the future, wherein recent work in the immunology field clearly demonstrates that metabolic reprogramming defines immune cell functionality. Although there is a paucity of information about how diet and fatty acids modulate this process, it is possible that this will open up a new avenue of research relating to nutrient-sensitive metabolic inflammation.
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Affiliation(s)
- Jessica C Ralston
- Nutrigenomics Research Group; UCD Conway Institute of Biomolecular and Biomedical Research; School of Public Health, Physiotherapy, and Sports Science; and Institute of Food and Health; University College Dublin, Dublin 4, Ireland; , , , ,
| | - Claire L Lyons
- Nutrigenomics Research Group; UCD Conway Institute of Biomolecular and Biomedical Research; School of Public Health, Physiotherapy, and Sports Science; and Institute of Food and Health; University College Dublin, Dublin 4, Ireland; , , , ,
| | - Elaine B Kennedy
- Nutrigenomics Research Group; UCD Conway Institute of Biomolecular and Biomedical Research; School of Public Health, Physiotherapy, and Sports Science; and Institute of Food and Health; University College Dublin, Dublin 4, Ireland; , , , ,
| | - Anna M Kirwan
- Nutrigenomics Research Group; UCD Conway Institute of Biomolecular and Biomedical Research; School of Public Health, Physiotherapy, and Sports Science; and Institute of Food and Health; University College Dublin, Dublin 4, Ireland; , , , ,
| | - Helen M Roche
- Nutrigenomics Research Group; UCD Conway Institute of Biomolecular and Biomedical Research; School of Public Health, Physiotherapy, and Sports Science; and Institute of Food and Health; University College Dublin, Dublin 4, Ireland; , , , ,
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Lee SC, Wang SY, Li CC, Liu CT. Anti-inflammatory effect of cinnamaldehyde and linalool from the leaf essential oil of Cinnamomum osmophloeum Kanehira in endotoxin-induced mice. J Food Drug Anal 2017; 26:211-220. [PMID: 29389558 PMCID: PMC9332676 DOI: 10.1016/j.jfda.2017.03.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/16/2017] [Accepted: 03/17/2017] [Indexed: 12/22/2022] Open
Abstract
Cinnamomum osmophloeum Kanehira is a Taiwan native plant that belongs to genus Cinnamomum and is also known as pseudocinnamomum or indigenous cinnamon. Its leaf is traditionally used by local people in cooking and as folk therapy. We previously demonstrated the chemical composition and anti-inflammatory effect of leaf essential oil of Cinnamomum osmophloeum Kanehira of linalool chemotype in streptozotocin-induced diabetic rats and on endotoxin-injected mice. The aim of the present study is to evaluate whether cinnamaldehyde and linalool the active anti-inflammatory compounds in leaf essential oil of Cinnamomum osmophloeum Kanehira. Before the injection of endotoxin, C57BL/6 mice of the experimental groups were administered cinnamaldehyde (0.45 or 0.9 mg/kg body weight) or linalool (2.6 or 5.2 mg/kg body weight), mice of the positive control group were administered the leaf essential oil (13 mg/kg body weight), and mice of the negative group were administered vehicle (corn oil, 4 mL/kg body weight) by gavage every other day for two weeks. All mice received endotoxin (i.p. 10 mg/mL/kg body weight) the next day after the final administration and were killed 12 h after the injection. Normal control mice were pretreated with vehicle followed by the injection with saline. None of the treatment found to affect body weight or food or water intake of mice before the injection of endotoxin. Cinnamaldehyde and linalool were found significantly reversed endotoxin-induced body weight loss and lymphoid organ enlargement compared with vehicle (P < 0.05). Both compounds also significantly lowered endotoxin-induced levels of peripheral nitrate/nitrite, interleukin (IL)-1β, IL-18, tumor necrosis factor (TNF)-α, interferon (IFN)-γ, and High-mobility group box 1 protein (HMGB-1), and levels of nitrate/nitrite, IL-1β, TNF-α, and IFN-γ in spleen and mesenteric lymph nodes (MLNs) (P < 0.05). Endotoxin-induced expression of toll-like receptor 4 (TLR4), Myeloid differentiation primary response gene 88 (MyD88), myeloid differentiation protein 2 (MD2), Nod-like receptor family, pyrin domain containing 3 (NLRP3), apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC), and caspase-1 in spleen and mesenteric lymph nodes (MLNs) were inhibited by all tested doses of cinnamaldehyde and linalool (P < 0.05). Subsequently, the activation of nuclear factor (NF)-κB and the activity of caspase-1 in spleen and MLNs were also suppressed by these two compounds (P < 0.05). In addition, cinnamaldehyde and linalool at the dose equivalent to their corresponding content in the tested dose of the leaf essential oil, which was 0.9 mg/kg and 5.2 mg/kg, respectively, showed similar or slightly less inhibitory activity for most of these inflammatory parameters compared with that of the leaf essential oil. Our data confirmed the potential use of leaf essential oil of Cinnamomum osmophloeum Kanehira as an anti-inflammatory natural product and provide evidence for cinnamaldehyde and linalool as two potent agents for prophylactic use in health problems associated with inflammations that being attributed to over-activated TLR4 and/or NLRP3 signaling pathways.
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Affiliation(s)
- Shih-Chieh Lee
- Department of BioIndustry Technology, Da-Yeh University, No. 168, University Rd., Dacun, Changhua, Taiwan, Republic of China
| | - Shih-Yun Wang
- School of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China
| | - Chien-Chun Li
- School of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China
| | - Cheng-Tzu Liu
- School of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China; Department of Nutrition, Chung Shan Medical University Hospital, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China.
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Wang MX, Zhao XJ, Chen TY, Liu YL, Jiao RQ, Zhang JH, Ma CH, Liu JH, Pan Y, Kong LD. Nuciferine Alleviates Renal Injury by Inhibiting Inflammatory Responses in Fructose-Fed Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:7899-7910. [PMID: 27718563 DOI: 10.1021/acs.jafc.6b03031] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Nuciferine is a major active component from the lotus leaf. This study examines the effects of nuciferine on fructose-induced renal injury and explores its possible mechanism. Rats consumed drinking water or 10% fructose for 12 weeks. Fructose-fed rats were orally treated with water or 7, 14, or 28 mg/kg of nuciferine for the last 6 weeks. HK-2 cells were exposed to 5 mM fructose alone or in combination with nuciferine (2.5-40 μM) for 24 h. Nuciferine significantly attenuated fructose-induced hyperuricemia, dyslipidemia, and systemic inflammation in rats. More importantly, it alleviated renal pathological injury with proteinuria at 20 and 40 mg/kg (2.58 ± 0.97 and 2.48 ± 1.04 mg/mg·creatinine, P < 0.05) compared with fructose-vehicle group (4.10 ± 1.18 mg/mg·creatinine). Furthermore, nuciferine reduced TLR4, MyD88, PI3K, ILK, p-AKT, p-P65, and NLRP3 inflammasome protein levels (P < 0.05 for all) in the renal cortex of fructose-fed rats (14 and 28 mg/kg) and fructose-exposed HK-2 cells (5-40 μM), which is consistent with its reduction of inflammatory cytokines IL-1β, IL-6, TNF-α, and MCP-1 (P < 0.05 for all) in vivo and in vitro. These findings suggest that nuciferine alleviated fructose-induced inflammation by inhibiting TLR4/PI3K/NF-κB signaling and NLRP3 inflammasome activation in rat renal cortex and HK-2 cells, which may contribute to the improvement of renal injury.
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Affiliation(s)
- Ming-Xing Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Xiao-Juan Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Tian-Yu Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Yang-Liu Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Rui-Qing Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Jian-Hua Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Chun-Hua Ma
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Jia-Hui Liu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Ying Pan
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
| | - Ling-Dong Kong
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University , Nanjing 210023, People's Republic of China
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He L, Peng X, Liu G, Tang C, Liu H, Liu F, Zhou H, Peng Y. Anti-inflammatory effects of triptolide on IgA nephropathy in rats. Immunopharmacol Immunotoxicol 2016; 37:421-7. [PMID: 26466641 DOI: 10.3109/08923973.2015.1080265] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
IgA nephropathy (IgAN) is the finding of immune deposits predominantly containing polymeric IgA in the glomerular mesangium on renal biopsy. Recently studies show that inflammation may involve in the progression of renal glomerulosclerosis and tubulointerstitial scarring in IgAN. This study was designed to evaluate the renoprotective effect of triptolide on IgAN rat model. IgAN was induced in Sprague-Dawley rats by oral and intravenous immunization with BSA for 12 weeks. Rats were treated with triptolide (200 μg/kg/d intragastrically) from 12 to 28 weeks. At Week 28, the rats was sacrificed, kidneys and blood samples were collected for further analysis. Our data shown that IgAN rat model showed marked deterioration of proteinuria together with higher levels of the urine protein:creatinine ratio compared to the normal control. Animals that underwent intermittent exposure to triptolide treatment exhibited significant improvements in the functional parameters without severe side effects. Rats developing IgAN had profound mesangial proliferation and mesangial expansion, intense and diffuse glomerular IgA deposition, while triptolide treatment significantly attenuated it. We also observed that treatment with triptolide significantly decreases serum levels of IL-1β and IL-18, and may exerted anti-inflammatory effects by down-regulating NLRP3 and TLR4 expression. Our study clearly demonstrated that triptolide prevents IgAN progression via an amelioration of inflammasome-mediated proinflammatory cytokine production, thus brought a light of hope for treatment of IgAN.
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Affiliation(s)
- Liyu He
- a Department of Nephrology , The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan , Changsha , Hunan , People's Republic of China
| | - Xiaofei Peng
- a Department of Nephrology , The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan , Changsha , Hunan , People's Republic of China
| | - Guoyong Liu
- b Department of Nephrology , The First Affiliated Hospital of Changde Vocational Technical College , Changde , Hunan , People's Republic of China , and
| | - Chengyuan Tang
- a Department of Nephrology , The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan , Changsha , Hunan , People's Republic of China
| | - Hong Liu
- a Department of Nephrology , The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan , Changsha , Hunan , People's Republic of China
| | - Fuyou Liu
- a Department of Nephrology , The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan , Changsha , Hunan , People's Republic of China
| | - He Zhou
- c Department of Nephrology , The First People's Hospital of Xiangtan City , Xiangtan , Hunan , People's Republic of China
| | - Youming Peng
- a Department of Nephrology , The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan , Changsha , Hunan , People's Republic of China
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Wang YF, Hsu YJ, Wu HF, Lee GL, Yang YS, Wu JY, Yet SF, Wu KK, Kuo CC. Endothelium-Derived 5-Methoxytryptophan Is a Circulating Anti-Inflammatory Molecule That Blocks Systemic Inflammation. Circ Res 2016; 119:222-36. [DOI: 10.1161/circresaha.116.308559] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 05/05/2016] [Indexed: 01/10/2023]
Abstract
Rationale:
Systemic inflammation has emerged as a key pathophysiological process that induces multiorgan injury and causes serious human diseases. Endothelium is critical in maintaining cellular and inflammatory homeostasis, controlling systemic inflammation, and progression of inflammatory diseases. We postulated that endothelium produces and releases endogenous soluble factors to modulate inflammatory responses and protect against systemic inflammation.
Objective:
To identify endothelial cell–released soluble factors that protect against endothelial barrier dysfunction and systemic inflammation.
Methods and Results:
We found that conditioned medium of endothelial cells inhibited cyclooxgenase-2 and interleukin-6 expression in macrophages stimulated with lipopolysaccharide. Analysis of conditioned medium extracts by liquid chromatography–mass spectrometry showed the presence of 5-methoxytryptophan (5-MTP), but not other related tryptophan metabolites. Furthermore, endothelial cell–derived 5-MTP suppressed lipopolysaccharide-induced inflammatory responses and signaling in macrophages and endotoxemic lung tissues. Lipopolysaccharide suppressed 5-MTP level in endothelial cell-conditioned medium and reduced serum 5-MTP level in the murine sepsis model. Intraperitoneal injection of 5-MTP restored serum 5-MTP accompanied by the inhibition of lipopolysaccharide-induced endothelial leakage and suppression of lipopolysaccharide- or cecal ligation and puncture–mediated proinflammatory mediators overexpression. 5-MTP administration rescued lungs from lipopolysaccharide-induced damages and prevented sepsis-related mortality. Importantly, compared with healthy subjects, serum 5-MTP level in septic patients was decreased by 65%, indicating an important clinical relevance.
Conclusions:
We conclude that 5-MTP belongs to a novel class of endothelium-derived protective molecules that defend against endothelial barrier dysfunction and excessive systemic inflammatory responses.
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Affiliation(s)
- Yi-Fu Wang
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Yu-Juei Hsu
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Hsu-Feng Wu
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Guan-Lin Lee
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Ya-Sung Yang
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Jing-Yiing Wu
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Shaw-Fang Yet
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Kenneth K. Wu
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
| | - Cheng-Chin Kuo
- From the Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan (Y.-F.W., H.-F.W., G.-L.L., J.-Y.W., S.-F.Y., K.K.W., C.-C.K.); Institute of Molecular Medicine, National Tsing Hua University, Hsinchu, Taiwan (Y.-F.W.); Division of Nephrology (Y.-J.H.), Division of Infectious Diseases and Tropical Medicine (Y.-S.Y.), Department of Medicine, Tri-Service General Hospital (Y.-J.H., Y.-S.Y.), and Graduate Institutes of Life Sciences and Biochemistry (Y.-J.H., G.-L
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Baranova IN, Souza ACP, Bocharov AV, Vishnyakova TG, Hu X, Vaisman BL, Amar MJ, Chen Z, Kost Y, Remaley AT, Patterson AP, Yuen PST, Star RA, Eggerman TL. Human SR-BI and SR-BII Potentiate Lipopolysaccharide-Induced Inflammation and Acute Liver and Kidney Injury in Mice. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2016; 196:3135-47. [PMID: 26936883 PMCID: PMC4856165 DOI: 10.4049/jimmunol.1501709] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 01/24/2016] [Indexed: 12/18/2022]
Abstract
The class B scavenger receptors BI (SR-BI) and BII (SR-BII) are high-density lipoprotein receptors that recognize various pathogens, including bacteria and their products. It has been reported that SR-BI/II null mice are more sensitive than normal mice to endotoxin-induced inflammation and sepsis. Because the SR-BI/II knockout model demonstrates multiple immune and metabolic disorders, we investigated the role of each receptor in the LPS-induced inflammatory response and tissue damage using transgenic mice with pLiv-11-directed expression of human SR-BI (hSR-BI) or human SR-BII (hSR-BII). At 6 h after i.p. LPS injection, transgenic hSR-BI and hSR-BII mice demonstrated markedly higher serum levels of proinflammatory cytokines and 2- to 3-fold increased expression levels of inflammatory mediators in the liver and kidney, compared with wild-type (WT) mice. LPS-stimulated inducible NO synthase expression was 3- to 6-fold higher in the liver and kidney of both transgenic strains, although serum NO levels were similar in all mice. Despite the lower high-density lipoprotein plasma levels, both transgenic strains responded to LPS by a 5-fold increase of plasma corticosterone levels, which were only moderately lower than in WT animals. LPS treatment resulted in MAPK activation in tissues of all mice; however, the strongest response was detected for hepatic extracellular signal-regulated protein kinase 1 and 2 and kidney JNK of both transgenic mice. Histological examination of hepatic and renal tissue from LPS-challenged mice revealed more injury in hSR-BII, but not hSR-BI, transgenic mice versus WT controls. Our findings demonstrate that hSR-BII, and to a lesser extent hSR-BI, significantly increase LPS-induced inflammation and contribute to LPS-induced tissue injury in the liver and kidney, two major organs susceptible to LPS toxicity.
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Affiliation(s)
- Irina N Baranova
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - Ana C P Souza
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Alexander V Bocharov
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892;
| | - Tatyana G Vishnyakova
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - Xuzhen Hu
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Boris L Vaisman
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892; and
| | - Marcelo J Amar
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892; and
| | - Zhigang Chen
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - Yana Kost
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892
| | - Alan T Remaley
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892; and
| | - Amy P Patterson
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892; National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892; and
| | - Peter S T Yuen
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Robert A Star
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Thomas L Eggerman
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD 20892; Division of Diabetes, Endocrinology, and Metabolic Diseases, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
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REN JUN, MENG SHANSHAN, YAN BINGDI, YU JINYAN, LIU JING. Protectin D1 reduces concanavalin A-induced liver injury by inhibiting NF-κB-mediated CX3CL1/CX3CR1 axis and NLR family, pyrin domain containing 3 inflammasome activation. Mol Med Rep 2016; 13:3627-38. [DOI: 10.3892/mmr.2016.4980] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Accepted: 12/11/2015] [Indexed: 11/06/2022] Open
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Interleukin-1 Family Cytokines in Liver Diseases. Mediators Inflamm 2015; 2015:630265. [PMID: 26549942 PMCID: PMC4624893 DOI: 10.1155/2015/630265] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 09/27/2015] [Indexed: 02/06/2023] Open
Abstract
The gene encoding IL-1 was sequenced more than 30 years ago, and many related cytokines, such as IL-18, IL-33, IL-36, IL-37, IL-38, IL-1 receptor antagonist (IL-1Ra), and IL-36Ra, have since been identified. IL-1 is a potent proinflammatory cytokine and is involved in various inflammatory diseases. Other IL-1 family ligands are critical for the development of diverse diseases, including inflammatory and allergic diseases. Only IL-1Ra possesses the leader peptide required for secretion from cells, and many ligands require posttranslational processing for activation. Some require inflammasome-mediated processing for activation and release, whereas others serve as alarmins and are released following cell membrane rupture, for example, by pyroptosis or necroptosis. Thus, each ligand has the proper molecular process to exert its own biological functions. In this review, we will give a brief introduction to the IL-1 family cytokines and discuss their pivotal roles in the development of various liver diseases in association with immune responses. For example, an excess of IL-33 causes liver fibrosis in mice via activation and expansion of group 2 innate lymphoid cells to produce type 2 cytokines, resulting in cell conversion into pro-fibrotic M2 macrophages. Finally, we will discuss the importance of IL-1 family cytokine-mediated molecular and cellular networks in the development of acute and chronic liver diseases.
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Wang X, Zheng X, Ma C, Zhao L. Role of TRIF Small Interference RNA (siRNA) in Chronic Experimental Allergic Encephalomyelitis (EAE). Med Sci Monit 2015; 21:2583-7. [PMID: 26324415 PMCID: PMC4562682 DOI: 10.12659/msm.894564] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 06/19/2015] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Multiple sclerosis (MS) is an autoimmune disease causing multifocal demyelination and axonal injuries in the central nervous system (CNS). Toll-interleukin-1 receptor (TIR)-domain containing adaptor protein-inducing interferon beta (TRIF) is an important adaptor protein for Toll-like receptors (TLRs) and can modulate the immune response via regulating cytokine secretion. This study investigated the potential function of TRIF in MS mice via small interference RNA (siRNA). MATERIAL AND METHODS Isolated mouse lymphocytes were processed using TRIF siRNA, followed by RT-PCR assay to quantify TRIF expression level. An experimental allergic encephalomyelitis (EAE) model was prepared in C57BL/6 mice immunized with MOG 35-55. TRIF siRNA or controlled siRNA were intravenously applied to evaluate the neurological function of animals. Serum levels of IFN-γ and IL-2 were observed. RESULTS Specific siRNA effectively decreased the TRIF expression in mouse dendritic cells and this siRNA improved the EAE severity and neurological scores. Further assays showed that both IFN-γ and IL-2 levels in the siRNA treatment group were significantly lower than in controls. CONCLUSIONS The expression of TRIF can be down-regulated by siRNA, thereby alleviating the severity of EAE via its inhibition of interleukin and cytokine release. This may provide new insights for future treatment of MS.
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MESH Headings
- Adaptor Proteins, Vesicular Transport/antagonists & inhibitors
- Adaptor Proteins, Vesicular Transport/genetics
- Adaptor Proteins, Vesicular Transport/immunology
- Animals
- Encephalomyelitis, Autoimmune, Experimental/genetics
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/therapy
- Female
- Gene Knockdown Techniques
- Genetic Therapy
- Interferon-gamma/blood
- Interleukin-2/blood
- Mice
- Mice, Inbred C57BL
- Multiple Sclerosis/genetics
- Multiple Sclerosis/immunology
- Multiple Sclerosis/therapy
- RNA, Small Interfering/administration & dosage
- RNA, Small Interfering/genetics
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Affiliation(s)
- Xichun Wang
- Department of Gerontological Neurology, Heilongjiang Hospital, Harbin, Heilongjiang, P.R. China
| | - Xiufeng Zheng
- Department of Cardiology, Heilongjiang Hospital, Harbin, Heilongjiang, P.R. China
| | - Chong Ma
- Department of Cardiology, Heilongjiang Hospital, Harbin, Heilongjiang, P.R. China
| | - Libo Zhao
- Department of Gerontological Neurology, Heilongjiang Hospital, Harbin, Heilongjiang, P.R. China
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García JA, Volt H, Venegas C, Doerrier C, Escames G, López LC, Acuña-Castroviejo D. Disruption of the NF-κB/NLRP3 connection by melatonin requires retinoid-related orphan receptor-α and blocks the septic response in mice. FASEB J 2015; 29:3863-75. [PMID: 26045547 DOI: 10.1096/fj.15-273656] [Citation(s) in RCA: 179] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 05/18/2015] [Indexed: 01/06/2023]
Abstract
We determined the NF-κB- and NOD-like receptor (NLR)P3-dependent molecular mechanisms involved in sepsis and evaluated the role of retinoid-related orphan receptor (ROR)-α in melatonin's anti-inflammatory actions. Western blot, RT-PCR, ELISA, and spectrophotometric analysis revealed that NF-κB and NLRP3 closely interact, leading to proinflammatory and pro-oxidant status in heart tissue of septic C57BL/6J mice. Moreover, mitochondrial oxygen consumption was reduced by 80% in septic mice. In vivo and in vitro analysis showed that melatonin administration blunts NF-κB transcriptional activity through a sirtuin1-dependent NF-κB deacetylation in septic mice. Melatonin also decreased NF-κB-dependent proinflammatory response and restored redox balance and mitochondrial homeostasis, thus inhibiting the NLRP3 inflammasome. In an important finding, the inhibition of NF-κB by melatonin, but not that of NLRP3, was blunted in RORα (sg/sg) mice, indicating that functional RORα transcription factor is necessary for the initiation of the innate immune response against inflammation. Our results are evidence of the NF-κB/NLRP3 connection during sepsis and identify NLRP3 as a novel molecular target for melatonin. The multiple molecular targets of melatonin in this study explain its potent anti-inflammatory efficacy against systemic innate immune activation and herald a promising therapeutic application for melatonin in the treatment of sepsis.
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Affiliation(s)
- José A García
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Huayqui Volt
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Carmen Venegas
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Carolina Doerrier
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Germaine Escames
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Luis C López
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Darío Acuña-Castroviejo
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
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Lee SC, Hsu JS, Li CC, Chen KM, Liu CT. Protective effect of leaf essential oil from Cinnamomum osmophloeum Kanehira on endotoxin-induced intestinal injury in mice associated with suppressed local expression of molecules in the signaling pathways of TLR4 and NLRP3. PLoS One 2015; 10:e0120700. [PMID: 25794175 PMCID: PMC4368640 DOI: 10.1371/journal.pone.0120700] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 01/26/2015] [Indexed: 02/07/2023] Open
Abstract
Endotoxin is a potent microbial mediator implicated in sepsis. We investigated the anti-inflammatory effect of leaf essential oil from Cinnamomum osmophloeum Kanehira (CO) of the linalool chemotype on endotoxin-injected mice. Mice were administered CO or vehicle by gavage before endotoxin injection and were killed 12 h after injection. Neither growth nor the organ weight or tissue weight to body weight ratio was affected by CO treatment. CO significantly lowered peripheral levels of tumor necrosis factor-α, interleukin (IL)-1β, IL-18, interferon-γ, and nitric oxide and inhibited the expression of toll-like receptor 4 (TLR4), myeloid differentiation primary response gene (88), myeloid differentiation factor 2, apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC), caspase-1, and Nod-like receptor family, pyrin domain containing 3 (NLRP3). CO also inhibited the activation of nuclear factor-ĸB, inhibited the activity of caspase-1 in small intestine, and ameliorated intestinal edema. Our data provide strong evidence for a protective effect of CO of the linalool chemotype in the endotoxin-induced systemic inflammatory response in close association with suppression of the TLR4 and NLRP3 signaling pathways in intestine.
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Affiliation(s)
- Shih-Chieh Lee
- Department of BioIndustry Technology, Da-Yeh University, No. 168, University Rd., Dacun, Changhua, Taiwan, Republic of China
| | - Jie-Sheng Hsu
- School of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China
| | - Chien-Chun Li
- School of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China
| | - Ke-Ming Chen
- Department of Parasitology, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China
| | - Cheng-Tzu Liu
- School of Nutrition, Chung Shan Medical University, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China
- Department of Nutrition, Chung Shan Medical University Hospital, No. 110, Sec. 1, Chien Kuo N. Rd., Taichung, Taiwan, Republic of China
- * E-mail:
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Ortiz F, Acuña-Castroviejo D, Doerrier C, Dayoub JC, López LC, Venegas C, García JA, López A, Volt H, Luna-Sánchez M, Escames G. Melatonin blunts the mitochondrial/NLRP3 connection and protects against radiation-induced oral mucositis. J Pineal Res 2015; 58:34-49. [PMID: 25388914 DOI: 10.1111/jpi.12191] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 11/07/2014] [Indexed: 12/13/2022]
Abstract
Mucositis is a common and distressing side effect of chemotherapy or radiotherapy that has potentially severe consequences, and no treatment is available. The purpose of this study was to analyze the molecular pathways involved in the development of oral mucositis and to evaluate whether melatonin can prevent this pathology. The tongue of male Wistar rats was subjected to irradiation (X-ray YXLON Y.Tu 320-D03 irradiator; the animals received a dose of 7.5 Gy/day for 5 days). Rats were treated with 45 mg/day melatonin or vehicle for 21 days postirradiation, either by local application into their mouths (melatonin gel) or by subcutaneous injection. A connection between reactive oxygen species, generating mitochondria and the NLRP3 (NLR-related protein 3 nucleotide-binding domain leucine-rich repeat containing receptor-related protein 3) inflammasome, has been reported in mucositis. Here, we show that mitochondrial oxidative stress, bioenergetic impairment and subsequent NLRP3 inflammasome activation are involved in the development of oral mucositis after irradiation and that melatonin synthesized in the rat tongue is depleted after irradiation. The application of melatonin gel restores physiological melatonin levels in the tongue and prevents mucosal disruption and ulcer formation. Melatonin gel protects the mitochondria from radiation damage and blunts the NF-κB/NLRP3 inflammasome signaling activation in the tongue. Our results suggest new molecular pathways involved in radiotherapy-induced mucositis that are inhibited by topical melatonin application, suggesting a potential preventive therapy for mucositis in patients with cancer.
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Affiliation(s)
- Francisco Ortiz
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, and RETICEF, Granada, Spain
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Xu D, Zhao M, Song Y, Song J, Huang Y, Wang J. Novel insights in preventing Gram-negative bacterial infection in cirrhotic patients: review on the effects of GM-CSF in maintaining homeostasis of the immune system. Hepatol Int 2014; 9:28-34. [DOI: 10.1007/s12072-014-9588-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 10/20/2014] [Indexed: 02/08/2023]
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Formica V, Cereda V, Nardecchia A, Tesauro M, Roselli M. Immune reaction and colorectal cancer: Friends or foes? World J Gastroenterol 2014; 20:12407-12419. [PMID: 25253941 PMCID: PMC4168074 DOI: 10.3748/wjg.v20.i35.12407] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 03/19/2014] [Accepted: 05/19/2014] [Indexed: 02/06/2023] Open
Abstract
The potential clinical impact of enhancing antitumor immunity is increasingly recognized in oncology therapeutics for solid tumors. Colorectal cancer is one of the most studied neoplasms for the tumor-host immunity relationship. Although immune cell populations involved in such a relationship and their prognostic role in colorectal cancer development have clearly been identified, still no approved therapies based on host immunity intensification have so far been introduced in clinical practice. Moreover, a recognized risk in enhancing immune reaction for colitis-associated colorectal cancer development has limited the emphasis of this approach. The aim of the present review is to discuss immune components involved in the host immune reaction against colorectal cancer and analyze the fine balance between pro-tumoral and anti-tumoral effect of immunity in this model of disease.
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Tsutsui H, Nishiguchi S. Importance of Kupffer cells in the development of acute liver injuries in mice. Int J Mol Sci 2014; 15:7711-30. [PMID: 24802875 PMCID: PMC4057701 DOI: 10.3390/ijms15057711] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/30/2014] [Accepted: 04/30/2014] [Indexed: 12/12/2022] Open
Abstract
Kupffer cells reside within the liver sinusoid and serve as gatekeepers. They produce pro- and anti-inflammatory cytokines and other biologically important molecules upon the engagement of pattern recognition receptors such as Toll-like receptors. Kupffer cell-ablated mice established by in vivo treatment with clodronate liposomes have revealed many important features of Kupffer cells. In this paper, we review the importance of Kupffer cells in murine acute liver injuries and focus on the following two models: lipopolysaccharide (LPS)-induced liver injury, which is induced by priming with Propionibacterium acnes and subsequent challenge with LPS, and hypercoagulability-mediated acute liver failure such as that in concanavalin A (Con A)-induced hepatitis. Kupffer cells are required for LPS sensitization induced by P. acnes and are a major cellular source of interleukin-18, which induces acute liver injury following LPS challenge. Kupffer cells contribute to Con A-induced acute liver failure by initiating pathogenic, intrasinusoidal thrombosis in collaboration with sinusoidal endothelial cells. The mechanisms underlying these models may shed light on human liver injuries induced by various etiologies such as viral infection and/or abnormal metabolism.
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Affiliation(s)
- Hiroko Tsutsui
- Department of Microbiology, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan.
| | - Shuhei Nishiguchi
- Department of Internal Medicine, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya 663-8501, Japan.
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Kir6.2 knockout aggravates lipopolysaccharide-induced mouse liver injury via enhancing NLRP3 inflammasome activation. J Gastroenterol 2014; 49:727-36. [PMID: 23771404 DOI: 10.1007/s00535-013-0823-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Accepted: 04/18/2013] [Indexed: 02/04/2023]
Abstract
BACKGROUND ATP-sensitive potassium (K-ATP) channels couple cellular metabolism to electric activity. Although Kir6.2-composed K-ATP channel (Kir6.2/K-ATP channel) has been demonstrated to regulate inflammation, a common cause of most liver diseases, its role in liver injury remains elusive. METHODS Kir6.2 knockout mice were used to prepared LPS-induced liver injury model so as to investigate the role of Kir6.2/K-ATP channels in the injury. Histochemistry was applied to evaluate the extent of liver injury. Proinflammatory cytokines were analyzed by ELISA. Endoplasmic reticulum (ER) stress and autophagy were assessed by western blotting. RESULTS We showed that Kir6.2 knockout markedly promoted the infiltration of lymphocytes and neutrophils in liver and significantly elevated serum levels of alanine transaminase (ALT) in respond to LPS treatment. We further found that Kir6.2 deficiency enhanced the activation of NF-κB and NLRP3 inflammasome following LPS challenge, and thereby increased the levels of pro-inflammatory cytokines IL-1β, IL-18 and TNF-α. Treatment of wild-type mice with the K-ATP channel opener iptakalim (IPT) could protect against LPS-induced liver injury through attenuating NLRP3 inflammasome-mediated inflammatory responses. Furthermore, Kir6.2 knockout-induced activation of NLRP3 inflammasome aggravated endoplasmic reticulum (ER) stress, autophagy and subsequent hepatocyte death. CONCLUSION Kir6.2 deficiency exacerbated LPS-induced liver injury by enhancing NLRP3 inflammasome-mediated inflammatory response. Thus, Kir6.2/K-ATP channel may be a potential candidate target for the treatment and prevention of liver injury.
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Henao-Mejia J, Elinav E, Thaiss CA, Licona-Limon P, Flavell RA. Role of the intestinal microbiome in liver disease. J Autoimmun 2013; 46:66-73. [PMID: 24075647 DOI: 10.1016/j.jaut.2013.07.001] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 02/06/2023]
Abstract
The liver integrates metabolic outcomes with nutrient intake while preventing harmful signals derived from the gut to spread throughout the body. Direct blood influx from the gastrointestinal tract through the portal vein makes the liver a critical firewall equipped with a broad array of immune cells and innate immune receptors that recognize microbial-derived products, microorganisms, toxins and food antigens that have breached the intestinal barrier. An overwhelming amount of evidence obtained in the last decade indicates that the intestinal microbiota is a key component of a wide variety of physiological processes, and alterations in the delicate balance that represents the intestinal bacterial communities are now considered important determinants of metabolic syndrome and immunopathologies. Moreover, it is now evident that the interaction between the innate immune system and the intestinal microbiota during obesity or autoimmunity promotes chronic liver disease progression and therefore it might lead to novel and individualized therapeutic approaches. In this review, we discuss a growing body of evidence that highlights the central relationship between the immune system, the microbiome, and chronic liver disease initiation and progression.
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Affiliation(s)
- Jorge Henao-Mejia
- Department of Immunobiology, Yale University School of Medicine, CT 06520, USA
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49
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Miura K, Yang L, van Rooijen N, Brenner DA, Ohnishi H, Seki E. Toll-like receptor 2 and palmitic acid cooperatively contribute to the development of nonalcoholic steatohepatitis through inflammasome activation in mice. Hepatology 2013; 57:577-89. [PMID: 22987396 PMCID: PMC3566276 DOI: 10.1002/hep.26081] [Citation(s) in RCA: 216] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Accepted: 09/02/2012] [Indexed: 12/13/2022]
Abstract
UNLABELLED Innate immune signaling associated with Toll-like receptors (TLRs) is a key pathway involved in the progression of nonalcoholic steatohepatitis (NASH). Here we show that both TLR2 and palmitic acid are required for activation of the inflammasome, interleukin (IL)-1α, and IL-1β, resulting in the progression of NASH. Wild-type (WT) and TLR2(-/-) mice were fed a choline-deficient amino acid-defined (CDAA) diet for 22 weeks to induce NASH. Bone marrow-transplanted TLR2 chimeric mice were generated after the recipient mice were lethally irradiated. Kupffer cells and hepatic stellate cells (HSCs) were isolated from WT mice and stimulated with TLR2 ligand and/or palmitic acid. WT mice on the CDAA diet developed profound steatohepatitis and liver fibrosis. In contrast, TLR2(-/-) mice had suppressed progression of NASH. Although both Kupffer cells and HSCs respond to TLR2 ligand, TLR2 bone marrow chimeric mice demonstrated that Kupffer cells were relatively more important than HSCs in TLR2-mediated progression of NASH. In vitro, palmitic acid alone did not increase TLR2 signaling-target genes, including cytokines and inflammasome components in Kupffer cells and HSCs. The TLR2 ligand increased Nod-like receptor protein 3, an inflammasome component, in Kupffer cells but not in HSCs. In the presence of TLR2 ligand, palmitic acid did induce caspase-1 activation and release of IL-1α and IL-1β in Kupffer cells; however, these effects were not observed in HSCs. In vivo, WT mice on the CDAA diet showed increased caspase-1 activation in the liver and elevated serum levels of IL-1α and IL-1β levels, which were suppressed in TLR2(-/-) mice. CONCLUSION TLR2 and palmitic acid cooperatively activate the inflammasome in Kupffer cells and/or macrophages in the development of NASH.
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Affiliation(s)
- Kouichi Miura
- Department of Medicine, University of California, San Diego, School of Medicine, 9500 Gilman Drive, La Jolla, CA 92093,Department of Gastroenterology, Akita University Graduate School of Medicine, 1-1-1 Hondo Akita-shi, Akita, Japan 010-8543
| | - Ling Yang
- Department of Medicine, University of California, San Diego, School of Medicine, 9500 Gilman Drive, La Jolla, CA 92093
| | - Nico van Rooijen
- Department of Molecular Cell Biology, Vrije Universiteit Medical Center, Amsterdam, Netherlands
| | - David A Brenner
- Department of Medicine, University of California, San Diego, School of Medicine, 9500 Gilman Drive, La Jolla, CA 92093
| | - Hirohide Ohnishi
- Department of Gastroenterology, Akita University Graduate School of Medicine, 1-1-1 Hondo Akita-shi, Akita, Japan 010-8543
| | - Ekihiro Seki
- Department of Medicine, University of California, San Diego, School of Medicine, 9500 Gilman Drive, La Jolla, CA 92093
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Abstract
Recent evidence indicates that the intestinal microflora plays a critical role in physiological and pathological processes; in particular, it is now considered a key determinant of immune pathologies and metabolic syndrome. Receiving the majority of its blood supply from the portal vein, the liver represents the first line of defense against food antigens, toxins, microbial-derived products, and microorganisms. Moreover, the liver is critically positioned to integrate metabolic outcomes with nutrient intake. To accomplish this function, the liver is equipped with a broad array of immune networks. It is now evident that, during pathological processes associated with obesity, alcohol-intake, or autoimmunity, the interaction between these immune cell populations and the intestinal microbiota promotes chronic liver disease progression and therefore they represent a novel therapeutic target. Herein, we highlight recent studies that have shed new light on the relationship between the microbiome, the innate immune system, and chronic liver disease progression.
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