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Hong R, Cao B, Chen D, Wu W, Luo T, Lv D, Zhang W, Wang S, Shao K. Multi-omics portrait of ductal carcinoma in situ in young women. Breast Cancer Res Treat 2024; 206:105-118. [PMID: 38704773 DOI: 10.1007/s10549-024-07254-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/08/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Young patients with breast ductal carcinoma in situ (DCIS) often face a poorer prognosis. The genomic intricacies in young-onset DCIS, however, remain underexplored. METHODS To address this gap, we undertook a comprehensive study encompassing exome, transcriptome, and vmethylome analyses. Our investigation included 20 DCIS samples (including 15 young-onset DCIS) and paired samples of normal breast tissue and blood. RESULTS Through RNA sequencing, we identified two distinct DCIS subgroups: "immune hot" and "immune cold". The "immune hot" subgroup was characterized by increased infiltration of lymphocytes and macrophages, elevated expression of PDCD1 and CTLA4, and reduced GATA3 expression. This group also exhibited active immunerelated transcriptional regulators. Mutational analysis revealed alterations in TP53 (38%), GATA3 (25%), and TTN (19%), with two cases showing mutations in APC, ERBB2, and SMARCC1. Common genomic alterations, irrespective of immune status, included gains in copy numbers at 1q, 8q, 17q, and 20q, and losses at 11q, 17p, and 22q. Signature analysis highlighted the predominance of signatures 2 and 1, with "immune cold" samples showing a significant presence of signature 8. Our methylome study on 13 DCIS samples identified 328 hyperdifferentially methylated regions (DMRs) and 521 hypo-DMRs, with "immune cold" cases generally showing lower levels of methylation. CONCLUSION In summary, the molecular characteristics of young-onset DCIS share similarities with invasive breast cancer (IBC), potentially indicating a poor prognosis. Understanding these characteristics, especially the immune microenvironment of DCIS, could be pivotal in identifying new therapeutic targets and preventive strategies for breast cancer.
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Affiliation(s)
- Ruoxi Hong
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China
| | - Boyang Cao
- HIM-BGI Omics Center, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, BGI Research, Hangzhou, 310030, China
- Guangdong Provincial Key Laboratory of Human Disease Genomics, Shenzhen Key Laboratory of Genomics, BGI-Research, Shenzhen, 518083, China
| | - Dongshao Chen
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China
| | - Wei Wu
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China
| | - Tian Luo
- HIM-BGI Omics Center, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, BGI Research, Hangzhou, 310030, China
- Guangdong Provincial Key Laboratory of Human Disease Genomics, Shenzhen Key Laboratory of Genomics, BGI-Research, Shenzhen, 518083, China
| | - Dian Lv
- HIM-BGI Omics Center, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, BGI Research, Hangzhou, 310030, China
- Guangdong Provincial Key Laboratory of Human Disease Genomics, Shenzhen Key Laboratory of Genomics, BGI-Research, Shenzhen, 518083, China
| | - Weimin Zhang
- Institute of Intelligent Medical Research (IIMR), BGI Genomics, Shenzhen, 518083, China.
| | - Shusen Wang
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, 510060, P.R. China.
| | - Kang Shao
- HIM-BGI Omics Center, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, BGI Research, Hangzhou, 310030, China.
- Guangdong Provincial Key Laboratory of Human Disease Genomics, Shenzhen Key Laboratory of Genomics, BGI-Research, Shenzhen, 518083, China.
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2
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Pi S, Xiong S, Yuan Y, Deng H. The Role of Inflammasome in Abdominal Aortic Aneurysm and Its Potential Drugs. Int J Mol Sci 2024; 25:5001. [PMID: 38732221 PMCID: PMC11084561 DOI: 10.3390/ijms25095001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Abdominal aortic aneurysm (AAA) has been recognized as a serious chronic inflammatory degenerative aortic disease in recent years. At present, there is no other effective intervention except surgical treatment for AAA. With the aging of the human population, its incidence is increasing year by year, posing a serious threat to human health. Modern studies suggest that vascular chronic inflammatory response is the core process in AAA occurrence and development. Inflammasome, a multiprotein complex located in the cytoplasm, mediates the expression of various inflammatory cytokines like interleukin (IL)-1β and IL-18, and thus plays a pivotal role in inflammation regulation. Therefore, inflammasome may exert a crucial influence on the progression of AAA. This article reviews some mechanism studies to investigate the role of inflammasome in AAA and then summarizes several potential drugs targeting inflammasome for the treatment of AAA, aiming to provide new ideas for the clinical prevention and treatment of AAA beyond surgical methods.
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Affiliation(s)
- Suyu Pi
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China; (S.P.); (S.X.); (Y.Y.)
- Aortic Abdominal Aneurysm (AAA) Translational Medicine Research Center of Hubei Province, Wuhan 430060, China
| | - Sizheng Xiong
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China; (S.P.); (S.X.); (Y.Y.)
- Aortic Abdominal Aneurysm (AAA) Translational Medicine Research Center of Hubei Province, Wuhan 430060, China
| | - Yan Yuan
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China; (S.P.); (S.X.); (Y.Y.)
- Aortic Abdominal Aneurysm (AAA) Translational Medicine Research Center of Hubei Province, Wuhan 430060, China
| | - Hongping Deng
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China; (S.P.); (S.X.); (Y.Y.)
- Aortic Abdominal Aneurysm (AAA) Translational Medicine Research Center of Hubei Province, Wuhan 430060, China
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3
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Cerdó T, Torres Moral T. Potential risk genes for primary Sjogren's syndrome from a meta-analysis by linear regression and random forest classification. Genes Dis 2024; 11:101016. [PMID: 38292168 PMCID: PMC10825437 DOI: 10.1016/j.gendis.2023.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 05/16/2023] [Accepted: 05/26/2023] [Indexed: 02/01/2024] Open
Affiliation(s)
- Tomás Cerdó
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Córdoba 14004, Spain
- Centre for Rheumatology Research, Division of Medicine, University College London, London W1T 4JF, UK
| | - Teresa Torres Moral
- Faculty of Computer Sciences, Multimedia and Telecommunication, Universitat Oberta de Catalunya, Barcelona 08018, Spain
- Dermatology Department, Melanoma Unit, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), and Hospital Clínic, Barcelona 08036, Spain
- Center for Networked Biomedical Research on Rare Diseases (CIBERER), Carlos III Health Institute, Madrid 28029, Spain
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4
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Wang Y, Wang T, Han Z, Wang R, Hu Y, Yang Z, Shen T, Zheng Y, Luo J, Ma Y, Luo Y, Jiao L. Explore the role of long noncoding RNAs and mRNAs in intracranial atherosclerotic stenosis: From the perspective of neutrophils. Brain Circ 2023; 9:240-250. [PMID: 38284107 PMCID: PMC10821680 DOI: 10.4103/bc.bc_63_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 01/30/2024] Open
Abstract
CONTEXT Circulating neutrophils and long noncoding RNAs (lncRNAs) play various roles in intracranial atherosclerotic stenosis (ICAS). OBJECTIVE Our study aimed to detect differentially expressed (DE) lncRNAs and mRNAs in circulating neutrophils and explore the pathogenesis of atherosclerosis from the perspective of neutrophils. METHODS Nineteen patients with ICAS and 15 healthy controls were enrolled. The peripheral blood of the participants was collected, and neutrophils were separated. The expression profiles of lncRNAs and mRNAs in neutrophils from five patients and five healthy controls were obtained, and DE lncRNAs and mRNAs were selected. Six lncRNAs were selected and validated using quantitative reverse transcription-polymerase chain reaction (qRT-PCR), and ceRNA and lncRNA-RNA binding protein (RBP)-mRNA networks were constructed. Correlation analysis between lncRNAs and mRNAs was performed. Functional enrichment annotations were also performed. RESULTS Volcano plots and heat maps displayed the expression profiles and DE lncRNAs and mRNAs, respectively. The qRT-PCR results revealed that the four lncRNAs showed a tendency consistent with the expression profile, with statistical significance. The ceRNA network revealed three pairs of regulatory networks: lncRNA RP3-406A7.3-NAGLU, lncRNA HOTAIRM1-MVK/IL-25/GBF1/CNOT4/ANKK1/PLEKHG6, and lncRNA RP11-701H16.4-ZNF416. The lncRNA-RBP-mRNA network showed five pairs of regulatory networks: lncRNA RP11-701H16.4-TEK, lncRNA RP11-701H16.4-MED17, lncRNA SNHG19-NADH-ubiquinone oxidoreductase core subunit V1, lncRNA RP3-406A7.3-Angel1, and lncRNA HOTAIRM1-CARD16. CONCLUSIONS Our study identified and verified four lncRNAs in neutrophils derived from peripheral blood, which may explain the transcriptional alteration of neutrophils during the pathophysiological process of ICAS. Our results provide insights for research related to the pathogenic mechanisms and drug design of ICAS.
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Affiliation(s)
- Yilin Wang
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Tao Wang
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Ziping Han
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Rongliang Wang
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Yue Hu
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Zhenhong Yang
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Tong Shen
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Yangmin Zheng
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Jichang Luo
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Yan Ma
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Yumin Luo
- Institute of Cerebrovascular Disease Research, Xuanwu Hospital of Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
- Beijing Geriatric Medical Research Center, Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China
| | - Liqun Jiao
- Department of Neurosurgery, Xuanwu Hospital of Capital Medical University, Beijing, China
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
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Bierschenk D, Papac-Milicevic N, Bresch IP, Kovacic V, Bettoni S, Dziedzic M, Wetsel RA, Eschenburg S, Binder CJ, Blom AM, King BC. C4b-binding protein inhibits particulate- and crystalline-induced NLRP3 inflammasome activation. Front Immunol 2023; 14:1149822. [PMID: 37283747 PMCID: PMC10239802 DOI: 10.3389/fimmu.2023.1149822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/05/2023] [Indexed: 06/08/2023] Open
Abstract
Dysregulated NLRP3 inflammasome activation drives a wide variety of diseases, while endogenous inhibition of this pathway is poorly characterised. The serum protein C4b-binding protein (C4BP) is a well-established inhibitor of complement with emerging functions as an endogenously expressed inhibitor of the NLRP3 inflammasome signalling pathway. Here, we identified that C4BP purified from human plasma is an inhibitor of crystalline- (monosodium urate, MSU) and particulate-induced (silica) NLRP3 inflammasome activation. Using a C4BP mutant panel, we identified that C4BP bound these particles via specific protein domains located on the C4BP α-chain. Plasma-purified C4BP was internalised into MSU- or silica-stimulated human primary macrophages, and inhibited MSU- or silica-induced inflammasome complex assembly and IL-1β cytokine secretion. While internalised C4BP in MSU or silica-stimulated human macrophages was in close proximity to the inflammasome adaptor protein ASC, C4BP had no direct effect on ASC polymerisation in in vitro assays. C4BP was also protective against MSU- and silica-induced lysosomal membrane damage. We further provide evidence for an anti-inflammatory function for C4BP in vivo, as C4bp-/- mice showed an elevated pro-inflammatory state following intraperitoneal delivery of MSU. Therefore, internalised C4BP is an inhibitor of crystal- or particle-induced inflammasome responses in human primary macrophages, while murine C4BP protects against an enhanced inflammatory state in vivo. Our data suggests C4BP has important functions in retaining tissue homeostasis in both human and mice as an endogenous serum inhibitor of particulate-stimulated inflammasome activation.
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Affiliation(s)
- Damien Bierschenk
- Division of Medical Protein Chemistry, Department of Translational Medicine, Lund University, Malmö, Sweden
| | | | - Ian P. Bresch
- Institute for Biophysical Chemistry, Hannover Medical School, Hannover, Germany
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Valentina Kovacic
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Serena Bettoni
- Division of Medical Protein Chemistry, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Mateusz Dziedzic
- Division of Medical Protein Chemistry, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Rick A. Wetsel
- Research Center for Immunology and Autoimmune Diseases, Brown Foundation Institute of Molecular Medicine, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Susanne Eschenburg
- Institute for Biophysical Chemistry, Hannover Medical School, Hannover, Germany
- Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, Germany
| | - Christoph J. Binder
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Anna M. Blom
- Division of Medical Protein Chemistry, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Ben C. King
- Division of Medical Protein Chemistry, Department of Translational Medicine, Lund University, Malmö, Sweden
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6
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Devi S, Indramohan M, Jäger E, Carriere J, Chu LH, de Almeida L, Greaves DR, Stehlik C, Dorfleutner A. CARD-only proteins regulate in vivo inflammasome responses and ameliorate gout. Cell Rep 2023; 42:112265. [PMID: 36930645 PMCID: PMC10151391 DOI: 10.1016/j.celrep.2023.112265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 01/10/2023] [Accepted: 02/28/2023] [Indexed: 03/18/2023] Open
Abstract
Inflammatory responses are crucial for controlling infections and initiating tissue repair. However, excessive and uncontrolled inflammation causes inflammatory disease. Processing and release of the pro-inflammatory cytokines interleukin-1β (IL-1β) and IL-18 depend on caspase-1 activation within inflammasomes. Assembly of inflammasomes is initiated upon activation of cytosolic pattern recognition receptors (PRRs), followed by sequential polymerization of pyrin domain (PYD)-containing and caspase recruitment domain (CARD)-containing proteins mediated by homotypic PYD and CARD interactions. Small PYD- or CARD-only proteins (POPs and COPs, respectively) evolved in higher primates to target these crucial interactions to limit inflammation. Here, we show the ability of COPs to regulate inflammasome activation by modulating homotypic CARD-CARD interactions in vitro and in vivo. CARD16, CARD17, and CARD18 displace crucial CARD interactions between caspase-1 proteins through competitive binding and ameliorate uric acid crystal-mediated NLRP3 inflammasome activation and inflammatory disease. COPs therefore represent an important family of inflammasome regulators and ameliorate inflammatory disease.
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Affiliation(s)
- Savita Devi
- Department of Academic Pathology, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Mohanalaxmi Indramohan
- Department of Academic Pathology, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Elisabeth Jäger
- Department of Academic Pathology, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jessica Carriere
- Department of Academic Pathology, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Lan H Chu
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Driskill Graduate Program in Life Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Lucia de Almeida
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - David R Greaves
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK
| | - Christian Stehlik
- Department of Academic Pathology, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA; Department of Biomedical Sciences, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA; Samuel Oschin Comprehensive Cancer Institute, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA; The Kao Autoimmunity Institute, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA.
| | - Andrea Dorfleutner
- Department of Academic Pathology, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA; Department of Biomedical Sciences, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA; The Kao Autoimmunity Institute, Cedars Sinai Medical Center, Los Angeles, CA 90048, USA.
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7
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Li Y, Jiang Q. Uncoupled pyroptosis and IL-1β secretion downstream of inflammasome signaling. Front Immunol 2023; 14:1128358. [PMID: 37090724 PMCID: PMC10117957 DOI: 10.3389/fimmu.2023.1128358] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/24/2023] [Indexed: 04/25/2023] Open
Abstract
Inflammasomes are supramolecular platforms that organize in response to various damage-associated molecular patterns and pathogen-associated molecular patterns. Upon activation, inflammasome sensors (with or without the help of ASC) activate caspase-1 and other inflammatory caspases that cleave gasdermin D and pro-IL-1β/pro-IL-18, leading to pyroptosis and mature cytokine secretion. Pyroptosis enables intracellular pathogen niche disruption and intracellular content release at the cost of cell death, inducing pro-inflammatory responses in the neighboring cells. IL-1β is a potent pro-inflammatory regulator for neutrophil recruitment, macrophage activation, and T-cell expansion. Thus, pyroptosis and cytokine secretion are the two main mechanisms that occur downstream of inflammasome signaling; they maintain homeostasis, drive the innate immune response, and shape adaptive immunity. This review aims to discuss the possible mechanisms, timing, consequences, and significance of the two uncoupling preferences downstream of inflammasome signaling. While pyroptosis and cytokine secretion may be usually coupled, pyroptosis-predominant and cytokine-predominant uncoupling are also observed in a stimulus-, cell type-, or context-dependent manner, contributing to the pathogenesis and development of numerous pathological conditions such as cryopyrin-associated periodic syndromes, LPS-induced sepsis, and Salmonella enterica serovar Typhimurium infection. Hyperactive cells consistently release IL-1β without LDH leakage and pyroptotic death, thereby leading to prolonged inflammation, expanding the lifespans of pyroptosis-resistant neutrophils, and hyperactivating stimuli-challenged macrophages, dendritic cells, monocytes, and specific nonimmune cells. Death inflammasome activation also induces GSDMD-mediated pyroptosis with no IL-1β secretion, which may increase lethality in vivo. The sublytic GSDMD pore formation associated with lower expressions of pyroptotic components, GSDMD-mediated extracellular vesicles, or other GSDMD-independent pathways that involve unconventional secretion could contribute to the cytokine-predominant uncoupling; the regulation of caspase-1 dynamics, which may generate various active species with different activities in terms of GSDMD or pro-IL-1β, could lead to pyroptosis-predominant uncoupling. These uncoupling preferences enable precise reactions to different stimuli of different intensities under specific conditions at the single-cell level, promoting cooperative cell and host fate decisions and participating in the pathogen "game". Appropriate decisions in terms of coupling and uncoupling are required to heal tissues and eliminate threats, and further studies exploring the inflammasome tilt toward pyroptosis or cytokine secretion may be helpful.
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Arslan ME, Tatar A, Yıldırım ÖÇ, Şahin İO, Ozdemir O, Sonmez E, Hacımuftuoglu A, Acikyildiz M, Geyikoğlu F, Mardinoğlu A, Türkez H. In Vitro Transcriptome Analysis of Cobalt Boride Nanoparticles on Human Pulmonary Alveolar Cells. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8683. [PMID: 36500178 PMCID: PMC9740129 DOI: 10.3390/ma15238683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/24/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Nanobiotechnology influences many different areas, including the medical, food, energy, clothing, and cosmetics industries. Considering the wide usage of nanomaterials, it is necessary to investigate the toxicity potentials of specific nanosized molecules. Boron-containing nanoparticles (NPs) are attracting much interest from scientists due to their unique physicochemical properties. However, there is limited information concerning the toxicity of boron-containing NPs, including cobalt boride (Co2B) NPs. Therefore, in this study, Co2B NPs were characterized using X-ray crystallography (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), and energy-dispersive X-ray spectroscopy (EDX) techniques. Then, we performed 3-(4,5-dimethyl-thiazol-2-yl) 2,5-diphenyltetrazolium bromide (MTT), lactate dehydrogenase (LDH) release, and neutral red (NR) assays for assessing cell viability against Co2B NP exposure on cultured human pulmonary alveolar epithelial cells (HPAEpiC). In addition, whole-genome microarray analysis was carried out to reveal the global gene expression differentiation of HPAEpiC cells after Co2B NP application. The cell viability tests unveiled an IC50 value for Co2B NPs of 310.353 mg/L. The results of our microarray analysis displayed 719 gene expression differentiations (FC ≥ 2) among the analyzed 40,000 genes. The performed visualization and integrated discovery (DAVID) analysis revealed that there were interactions between various gene pathways and administration of the NPs. Based on gene ontology biological processes analysis, we found that the P53 signaling pathway, cell cycle, and cancer-affecting genes were mostly affected by the Co2B NPs. In conclusion, we suggested that Co2B NPs would be a safe and effective nanomolecule for industrial applications, particularly for medical purposes.
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Affiliation(s)
- Mehmet Enes Arslan
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum 25050, Turkey
| | - Arzu Tatar
- Department of Otorhinolaryngology, Faculty of Medicine, Ataturk University, Erzurum 25240, Turkey
| | - Özge Çağlar Yıldırım
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum 25050, Turkey
| | - İrfan Oğuz Şahin
- Department of Pediatrics, Pediatric Cardiology, Faculty of Medicine, Ondokuz Mayıs University, Samsun 55139, Turkey
| | - Ozlem Ozdemir
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum 25050, Turkey
| | - Erdal Sonmez
- Advanced Materials Research Laboratory, Department of Nanoscience & Nanoengineering, Graduate School of Natural and Applied Sciences, Ataturk University, Erzurum 25240, Turkey
| | - Ahmet Hacımuftuoglu
- Department of Medical Pharmacology, Medical Faculty, Atatürk University, Erzurum 25240, Turkey
| | - Metin Acikyildiz
- Department of Chemistry, Faculty of Science and Art, Kilis 7 Aralık University, Kilis 79000, Turkey
| | - Fatime Geyikoğlu
- Department of Biology, Faculty of Arts and Sciences, Atatürk University, Erzurum 25240, Turkey
| | - Adil Mardinoğlu
- Science for Life Laboratory, KTH-Royal Institute of Technology, SE-17121 Stockholm, Sweden
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, London SE1 9RT, UK
| | - Hasan Türkez
- Department of Medical Biology, Faculty of Medicine, Atatürk University, Erzurum 25240, Turkey
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9
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Lara-Reyna S, Caseley EA, Topping J, Rodrigues F, Jimenez Macias J, Lawler SE, McDermott MF. Inflammasome activation: from molecular mechanisms to autoinflammation. Clin Transl Immunology 2022; 11:e1404. [PMID: 35832835 PMCID: PMC9262628 DOI: 10.1002/cti2.1404] [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: 04/27/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 11/09/2022] Open
Abstract
Inflammasomes are assembled by innate immune sensors that cells employ to detect a range of danger signals and respond with pro-inflammatory signalling. Inflammasomes activate inflammatory caspases, which trigger a cascade of molecular events with the potential to compromise cellular integrity and release the IL-1β and IL-18 pro-inflammatory cytokines. Several molecular mechanisms, working in concert, ensure that inflammasome activation is tightly regulated; these include NLRP3 post-translational modifications, ubiquitination and phosphorylation, as well as single-domain proteins that competitively bind to key inflammasome components, such as the CARD-only proteins (COPs) and PYD-only proteins (POPs). These diverse regulatory systems ensure that a suitable level of inflammation is initiated to counteract any cellular insult, while simultaneously preserving tissue architecture. When inflammasomes are aberrantly activated can drive excessive production of pro-inflammatory cytokines and cell death, leading to tissue damage. In several autoinflammatory conditions, inflammasomes are aberrantly activated with subsequent development of clinical features that reflect the degree of underlying tissue and organ damage. Several of the resulting disease complications may be successfully controlled by anti-inflammatory drugs and/or specific cytokine inhibitors, in addition to more recently developed small-molecule inhibitors. In this review, we will explore the molecular processes underlying the activation of several inflammasomes and highlight their role during health and disease. We also describe the detrimental effects of these inflammasome complexes, in some pathological conditions, and review current therapeutic approaches as well as future prospective treatments.
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Affiliation(s)
- Samuel Lara-Reyna
- Institute of Microbiology and Infection University of Birmingham Birmingham UK
| | - Emily A Caseley
- School of Biomedical Sciences, Faculty of Biological Sciences University of Leeds Leeds UK
| | - Joanne Topping
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, St James's University Hospital University of Leeds Leeds UK
| | - François Rodrigues
- AP-HP, Hôpital Tenon, Sorbonne Université, Service de Médecine interne Centre de Référence des Maladies Auto-inflammatoires et des Amyloses d'origine inflammatoire (CEREMAIA) Paris France
| | - Jorge Jimenez Macias
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women's Hospital Harvard Medical School Boston Massachusetts USA.,Brown Cancer Centre, Department of Pathology and Laboratory Medicine Brown University Providence Rhode Island USA
| | - Sean E Lawler
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women's Hospital Harvard Medical School Boston Massachusetts USA.,Brown Cancer Centre, Department of Pathology and Laboratory Medicine Brown University Providence Rhode Island USA
| | - Michael F McDermott
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, St James's University Hospital University of Leeds Leeds UK
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10
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Karasawa T, Komada T, Yamada N, Aizawa E, Mizushina Y, Watanabe S, Baatarjav C, Matsumura T, Takahashi M. Cryo-sensitive aggregation triggers NLRP3 inflammasome assembly in cryopyrin-associated periodic syndrome. eLife 2022; 11:75166. [PMID: 35616535 PMCID: PMC9177154 DOI: 10.7554/elife.75166] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
Cryopyrin-associated periodic syndrome (CAPS) is an autoinflammatory syndrome caused by mutations of NLRP3 gene encoding cryopyrin. Familial cold autoinflammatory syndrome (FCAS), the mildest form of CAPS, is characterized by cold-induced inflammation induced by the overproduction of IL-1β. However, the molecular mechanism of how mutated NLRP3 causes inflammasome activation in CAPS remains unclear. Here, we found that CAPS-associated NLRP3 mutants form cryo-sensitive aggregates that function as a scaffold for inflammasome activation. Cold exposure promoted inflammasome assembly and subsequent IL-1β release triggered by mutated NLRP3. While K+ efflux was dispensable, Ca2+ was necessary for mutated NLRP3-mediated inflammasome assembly. Notably, Ca2+ influx was induced during mutated NLRP3-mediated inflammasome assembly. Furthermore, caspase-1 inhibition prevented Ca2+ influx and inflammasome assembly induced by the mutated NLRP3, suggesting a feed-forward Ca2+ influx loop triggered by mutated NLRP3. Thus, the mutated NLRP3 forms cryo-sensitive aggregates to promote inflammasome assembly distinct from canonical NLRP3 inflammasome activation.
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Affiliation(s)
- Tadayoshi Karasawa
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
| | - Takanori Komada
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
| | - Naoya Yamada
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
| | - Emi Aizawa
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
| | - Yoshiko Mizushina
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
| | - Sachiko Watanabe
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
| | | | - Takayoshi Matsumura
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
| | - Masafumi Takahashi
- Division of Inflammation Research, Jichi Medical University, Shimotsuke, Japan
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11
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Abstract
Significance: Inflammasomes are cytosolic multiprotein complexes that mediate innate immune pathways. Inflammasomes activate inflammatory caspases and regulate inflammatory cytokines interleukin (IL)-1β and IL-18 as well as inflammatory cell death (pyroptosis). Among known inflammasomes, NLRP3 (NLR family pyrin domain containing 3) inflammasome is unique and well studied owing to the fact that it senses a broad range of stimuli and is implicated in the pathogenesis of both microbial and sterile inflammatory diseases. Recent Advances: Reactive oxygen species (ROS), especially derived from the mitochondria, are one of the critical mediators of NLRP3 inflammasome activation. Furthermore, NLRP3 inflammasome-driven inflammation recruits inflammatory cells, including macrophages and neutrophils, which in turn cause ROS production, suggesting a feedback loop between ROS and NLRP3 inflammasome. Critical Issues: The precise mechanism of how ROS affects NLRP3 inflammasome activation still need to be addressed. This review will summarize the current knowledge on the molecular mechanisms underlying the activation of NLRP3 inflammasome with particular emphasis on the intricate balance of feedback loop between ROS and inflammasome activation. Future Directions: Understanding that this relationship is loop rather than traditionally understood linear mechanism will enable to fine-tune inflammasome activation under varied pathological settings. Antioxid. Redox Signal. 36, 784-796.
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Affiliation(s)
- Abishai Dominic
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M University, College Station, Texas, USA.,Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, Texas, USA
| | - Nhat-Tu Le
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, Texas, USA
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
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12
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CD20 positive CD8 T cells are a unique and transcriptionally-distinct subset of T cells with distinct transmigration properties. Sci Rep 2021; 11:20499. [PMID: 34654826 PMCID: PMC8520003 DOI: 10.1038/s41598-021-00007-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 10/05/2021] [Indexed: 11/09/2022] Open
Abstract
The presence of T cells that are dimly positive for the B cell marker CD20 is well-established in autoimmunity and correlates with disease severity in various diseases. Further, we previously identified that the level of CD20-positive T cells was three-fourfold elevated in ascites fluid of ovarian carcinoma patients, together suggesting a role in both autoimmunity and cancer. In this respect, treatment of autoimmune patients with the CD20-targeting antibody Rituximab has also been shown to target and deplete CD20-positive T cells, previously identified as IFN-gamma producing, low proliferative, CD8 cytotoxic T cells with an effector memory (EM) differentiation state. However, the exact phenotype and relevance of CD20-positive T cells remains unclear. Here, we set out to identify the transcriptomic profile of CD20-positive T cells using RNA sequencing. Further, to gain insight into potential functional properties of CD20 expression in T cells, CD20 was ectopically expressed on healthy human T cells and phenotypic, functional, migratory and adhesive properties were determined in vitro and in vivo. Together, these assays revealed a reduced transmigration and an enhanced adhesive profile combined with an enhanced activation status for CD20-positive T cells.
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13
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Abstract
Atherosclerosis and abdominal aortic aneurysm (AAA) are multifactorial diseases characterized by inflammatory cell infiltration, matrix degradation, and thrombosis in the arterial wall. Although there are some differences between atherosclerosis and AAA, inflammation is a prominent common feature of these disorders. The nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a cytosolic multiprotein complex that activates caspase-1 and regulates the release of proinflammatory cytokines interleukin (IL)-1β and IL-18, as well as the induction of lytic cell death, termed pyroptosis, thereby leading to inflammation. Previous experimental and clinical studies have demonstrated that inflammation in atherosclerosis and AAA is mediated primarily through the NLRP3 inflammasome. Furthermore, recent results of the Canakinumab Anti-inflammatory Thrombosis and Outcome Study (CANTOS) showed that IL-1β inhibition reduces systemic inflammation and prevents atherothrombotic events; this supports the concept that the NLRP3 inflammasome is a promising therapeutic target for cardiovascular diseases, including atherosclerosis and AAA. This review summarizes current knowledge with a focus on the role of the NLRP3 inflammasome in atherosclerosis and AAA, and discusses the prospects of NLRP3 inflammasome-targeted therapy.
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Affiliation(s)
- Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University
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14
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Tyrkalska SD, Candel S, Mulero V. The neutrophil inflammasome. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 115:103874. [PMID: 32987011 DOI: 10.1016/j.dci.2020.103874] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/21/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Since inflammasomes were discovered in the early 21st century, knowledge about their biology has multiplied exponentially. These cytosolic multiprotein complexes alert the immune system about the presence of infection or tissue damage, and regulate the subsequent inflammatory responses. As inflammasome dysregulation is increasingly associated with numerous autoinflammatory disorders, there is an urgent need for further research into the inflammasome's involvement in the pathogenesis of such diseases in order to identify novel therapeutic targets and treatments. The zebrafish has become a widely used animal model to study human diseases in recent years, and has already provided relevant findings in the field of inflammasome biology including the identification of new components and pathways. We provide a detailed analysis of current knowledge on neutrophil inflammasome biology and compare its features with those of the better known macrophage inflammasome, focusing on its contribution to innate immunity and its relevance for human health. Importantly, a large body of evidence points to a link between neutrophil inflammasome dysfunction and many neutrophil-mediated human diseases, but the real contribution of the neutrophil inflammasome to the pathogenesis of these disorders is largely unknown. Although neutrophils have remained in the shadow of macrophages and monocytes in the field of inflammasome research since the discovery of these multiprotein platforms, recent studies strongly suggest that the importance of the neutrophil inflammasome has been underestimated.
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Affiliation(s)
- Sylwia D Tyrkalska
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, Spain; Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Murcia, Spain.
| | - Sergio Candel
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, Spain; Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Murcia, Spain.
| | - Victoriano Mulero
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, Spain; Instituto Murciano de Investigación Biosanitaria (IMIB)-Arrixaca, Murcia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Spain.
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15
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Takahashi M. NLRP3 inflammasome as a key driver of vascular disease. Cardiovasc Res 2021; 118:372-385. [PMID: 33483732 DOI: 10.1093/cvr/cvab010] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/12/2020] [Accepted: 01/16/2021] [Indexed: 12/12/2022] Open
Abstract
NLRP3 (nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3) is an intracellular innate immune receptor that recognizes a diverse range of stimuli derived from pathogens, damaged or dead cells, and irritants. NLRP3 activation causes the assembly of a large multiprotein complex termed the NLRP3 inflammasome, and leads to the secretion of bioactive interleukin (IL)-1β and IL-18 as well as the induction of inflammatory cell death termed pyroptosis. Accumulating evidence indicates that NLRP3 inflammasome plays a key role in the pathogenesis of sterile inflammatory diseases, including atherosclerosis and other vascular diseases. Indeed, the results of the Canakinumab Anti-inflammatory Thrombosis Outcome Study (CANTOS) trial demonstrated that IL-1β-mediated inflammation plays an important role in atherothrombotic events and suggested that NLRP3 inflammasome is a key driver of atherosclerosis. In this review, we will summarize the current state of knowledge regarding the role of NLRP3 inflammasome in vascular diseases, in particular in atherosclerosis, vascular injury, aortic aneurysm, and Kawasaki disease vasculitis, and discuss NLRP3 inflammasome as a therapeutic target for these disorders.
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Affiliation(s)
- Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi, Japan
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16
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Devi S, Stehlik C, Dorfleutner A. An Update on CARD Only Proteins (COPs) and PYD Only Proteins (POPs) as Inflammasome Regulators. Int J Mol Sci 2020; 21:E6901. [PMID: 32962268 PMCID: PMC7555848 DOI: 10.3390/ijms21186901] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/17/2020] [Accepted: 09/17/2020] [Indexed: 12/18/2022] Open
Abstract
Inflammasomes are protein scaffolds required for the activation of caspase-1 and the subsequent release of interleukin (IL)-1β, IL-18, and danger signals, as well as the induction of pyroptotic cell death to restore homeostasis following infection and sterile tissue damage. However, excessive inflammasome activation also causes detrimental inflammatory disease. Therefore, extensive control mechanisms are necessary to prevent improper inflammasome responses and inflammatory disease. Inflammasomes are assembled by sequential nucleated polymerization of Pyrin domain (PYD) and caspase recruitment domain (CARD)-containing inflammasome components. Once polymerization is nucleated, this process proceeds in a self-perpetuating manner and represents a point of no return. Therefore, regulation of this key step is crucial for a controlled inflammasome response. Here, we provide an update on two single domain protein families containing either a PYD or a CARD, the PYD-only proteins (POPs) and CARD-only proteins (COPs), respectively. Their structure allows them to occupy and block access to key protein-protein interaction domains necessary for inflammasome assembly, thereby regulating the threshold of these nucleated polymerization events, and consequently, the inflammatory host response.
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Affiliation(s)
- Savita Devi
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA 90048, USA;
| | - Christian Stehlik
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA 90048, USA;
- Department of Biomedical Sciences, and Samuel Oschin Comprehensive Cancer Institute, Cedars Sinai, Los Angeles, CA 90048, USA
| | - Andrea Dorfleutner
- Department of Pathology and Laboratory Medicine, Cedars Sinai, Los Angeles, CA 90048, USA;
- Department of Biomedical Sciences, Cedars Sinai, Los Angeles, CA 90048, USA
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17
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Stitham J, Rodriguez-Velez A, Zhang X, Jeong SJ, Razani B. Inflammasomes: a preclinical assessment of targeting in atherosclerosis. Expert Opin Ther Targets 2020; 24:825-844. [PMID: 32757967 PMCID: PMC7554266 DOI: 10.1080/14728222.2020.1795831] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/12/2020] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Inflammasomes are central to atherosclerotic vascular dysfunction with regulatory effects on inflammation, immune modulation, and lipid metabolism. The NLRP3 inflammasome is a critical catalyst for atherogenesis thus highlighting its importance in understanding the pathophysiology of atherosclerosis and for the identification of novel therapeutic targets and biomarkers for the treatment of cardiovascular disease. AREAS COVERED This review includes an overview of macrophage lipid metabolism and the role of NLRP3 inflammasome activity in cardiovascular inflammation and atherosclerosis. We highlight key activators, signal transducers and major regulatory components that are being considered as putative therapeutic targets for inhibition of NLRP3-mediated cardiovascular inflammation and atherosclerosis. EXPERT OPINION NLRP3 inflammasome activity lies at the nexus between inflammation and cholesterol metabolism; it offers unique opportunities for understanding atherosclerotic pathophysiology and identifying novel modes of treatment. As such, a host of NLRP3 signaling cascade components have been identified as putative targets for drug development. We catalog these current discoveries in therapeutic targeting of the NLRP3 inflammasome and, utilizing the CANTOS trial as the translational (bench-to-bedside) archetype, we examine the complexities, challenges, and ultimate goals facing the field of atherosclerosis research.
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Affiliation(s)
- Jeremiah Stitham
- Department of Medicine, Division of Endocrinology, Metabolism, and Lipid Research, Washington University School of Medicine, St. Louis, MO
| | - Astrid Rodriguez-Velez
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, MO
| | - Xiangyu Zhang
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, MO
- John Cochran VA Medical Center, St. Louis, MO
| | - Se-Jin Jeong
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, MO
- John Cochran VA Medical Center, St. Louis, MO
| | - Babak Razani
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, MO
- Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO
- John Cochran VA Medical Center, St. Louis, MO
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18
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McKee CM, Coll RC. NLRP3 inflammasome priming: A riddle wrapped in a mystery inside an enigma. J Leukoc Biol 2020; 108:937-952. [PMID: 32745339 DOI: 10.1002/jlb.3mr0720-513r] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/12/2022] Open
Abstract
The NLRP3 (NOD-, LRR-, and pyrin domain-containing protein 3) inflammasome is an immunological sensor that detects a wide range of microbial- and host-derived signals. Inflammasome activation results in the release of the potent pro-inflammatory cytokines IL-1β and IL-18 and triggers a form of inflammatory cell death known as pyroptosis. Excessive NLRP3 activity is associated with the pathogenesis of a wide range of inflammatory diseases, thus NLRP3 activation mechanisms are an area of intensive research. NLRP3 inflammasome activation is a tightly regulated process that requires both priming and activation signals. In particular, recent research has highlighted the highly complex nature of the priming step, which involves transcriptional and posttranslational mechanisms, and numerous protein binding partners. This review will describe the current understanding of NLRP3 priming and will discuss the potential opportunities for targeting this process therapeutically to treat NLRP3-associated diseases.
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Affiliation(s)
- Chloe M McKee
- The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, Antrim, UK
| | - Rebecca C Coll
- The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, Antrim, UK
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19
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Li Y, Yu P, Zou Y, Cai W, Sun W, Han N. KRas-ERK signalling promotes the onset and maintenance of uveal melanoma through regulating JMJD6-mediated H2A.X phosphorylation at tyrosine 39. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2020; 47:4257-4265. [PMID: 31736361 DOI: 10.1080/21691401.2019.1673764] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Since DNA damage is a first incident occurred during a tumour attack, it is rational that histone H2A.X phosphorylation on tyrosine 39 (H2A.XY39ph) may act as a tumour-relevant factor. This study was aimed to test the authenticity of the hypothesis. Uveal melanoma MP65 cells were transfected for expression of KRas mutated. H2A.X phosphorylation and ERK1/2 was measured, and transwell experiment was performed to examine the consequents of H2A.XY39ph on MP65 cells developing and migration. Regulatory relationship between H2A.XY39ph and ERK1/2 downstream genes were measured. Moreover, whether JMJD6 and MDM2 are involved in H2A.X phosphorylation was studied. Mutation of Ras activated ERK1/2 signalling and inhibited H2A.X phosphorylation at Y39. Silence of H2A.XY39ph contributed to the regulation of MP65 cells growth, migration and transcription of ERK1/2 downstream genes, including CYR61, IGFBP3, WNT16B, NT5E, GDF15 and CARD16. The repressed H2A.X phosphorylation through Ras-ERK1/2 signalling might be through MDM2-mediated JMJD6 degradation. Our study suggested that Ras-ERK1/2 signalling inhibited H2A.X phosphorylation at Y39, which led to the uncontrolled developing and migration of uveal melanoma cells. In addition, H2A.X phosphorylation was mediated possibly through JMJD6 which could be degraded by MDM2.
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Affiliation(s)
- Yaping Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, PR China
| | - Peng Yu
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, PR China
| | - Ying Zou
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, PR China
| | - Wenrui Cai
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, PR China
| | - Weixuan Sun
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, PR China
| | - Ning Han
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, PR China
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20
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Shirasuna K, Karasawa T, Takahashi M. Role of the NLRP3 Inflammasome in Preeclampsia. Front Endocrinol (Lausanne) 2020; 11:80. [PMID: 32161574 PMCID: PMC7053284 DOI: 10.3389/fendo.2020.00080] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/07/2020] [Indexed: 12/14/2022] Open
Abstract
Reproduction involves tightly regulated series of events and the immune system is involved in an array of reproductive processes. Disruption of well-controlled immune functions leads to infertility, placental inflammation, and numerous pregnancy complications, including preeclampsia (PE). Inflammasomes are involved in the process of pathogen clearance and sterile inflammation. They are large multi-protein complexes that are located in the cytosol and play key roles in the production of the pivotal inflammatory cytokines, interleukin (IL)-1β and IL-18, and pyroptosis. The nucleotide-binding oligomerization domain, leucine-rich repeat-, and pyrin domain-containing 3 (NLRP3) inflammasome is a key mediator of sterile inflammation induced by various types of damage-associated molecular patterns (DAMPs). Recent evidence indicates that the NLRP3 inflammasome is involved in pregnancy dysfunction, including PE. Many DAMPs (uric acid, palmitic acid, high-mobility group box 1, advanced glycation end products, extracellular vesicles, cell-free DNA, and free fatty acids) are increased and associated with pregnancy complications, especially PE. This review focuses on the role of the NLRP3 inflammasome in the pathophysiology of PE.
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Affiliation(s)
- Koumei Shirasuna
- Department of Animal Science, Tokyo University of Agriculture, Atsugi, Japan
- *Correspondence: Koumei Shirasuna
| | - Tadayoshi Karasawa
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Shimotsuke, Japan
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21
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Xu X, Yu H. Ras-PI3K pathway promotes osteosarcoma progression via regulating VRK1-mediated H2A phosphorylation at threonine 120. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:4274-4283. [PMID: 31810390 DOI: 10.1080/21691401.2019.1687506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Background: Ras-PI3K pathway aberrant activation plays an important role in the occurrence and development of osteosarcoma. This study investigated the functions of Ras-PI3K pathway specific activation on histone H2A phosphorylation at threonine 120 (H2AT120ph) in osteosarcoma cells, along with the possible internal molecular mechanisms.Methods: Cell transfection was done to alter RasG12V/Y40C, H2AT120ph and vaccinia-related kinase 1 (VRK1) expression. Then, cell viability, proliferation, migration and cell cycle distribution were assessed, respectively. qRT-PCR was utilized to measure the VRK1 and Ras-PI3K pathway downstream genes (CYR61, IGFBP3, WNT16B, NT5E, GDF15 and CARD16) expression. Chromatin immunoprecipitation (ChIP) was conducted to evaluate the input levels of H2AT120ph and VRK1 in the promoter regions of Ras-PI3K pathway downstream genes.Results: Ras-PI3K specific activation promoted histone H2AT120ph. H2AT120ph participated in the oncogenic functions of Ras-PI3K pathway on osteosarcoma by modulating the transcription of Ras-PI3K-targeted genes. Moreover, VRK1 contributed to the Ras-PI3K specific activation-induced up-regulation of H2AT120ph and osteosarcoma progression. Ras-PI3K pathway-specific activation-induced up-regulation of H2AT120ph was achieved by up-regulation of VRK1.Conclusions: Ras-PI3K pathway activation promoted osteosarcoma progression might be via up-regulating VRK1-mediated H2AT120ph. We proposed that VRK1 and H2AT120ph could be the potential targets for osteosarcoma diagnosis and treatment.HighlightsH2AT120ph is specifically promoted by Ras-PI3K pathway activation.H2AT120ph joins in the oncogenic effects of Ras-PI3K pathway on osteosarcoma.H2AT120ph regulates the transcription of Ras-PI3K-targeted genes.VRK1 takes part in the regulatory function of Ras-PI3K pathway on H2AT120ph.
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Affiliation(s)
- Xianlun Xu
- Department of Traumatology, Jining No.1 People's Hospital, Jining, Shandong, China.,Affiliated Jining No. 1 People's Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Hao Yu
- Department of Traumatology, Jining No.1 People's Hospital, Jining, Shandong, China.,Affiliated Jining No. 1 People's Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
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22
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Cheng Z, Li X, Hou S, Wu Y, Sun Y, Liu B. K-Ras-ERK1/2 accelerates lung cancer cell development via mediating H3 K18ac through the MDM2-GCN5-SIRT7 axis. PHARMACEUTICAL BIOLOGY 2019; 57:701-709. [PMID: 31613681 PMCID: PMC6807650 DOI: 10.1080/13880209.2019.1672756] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/26/2019] [Accepted: 09/22/2019] [Indexed: 06/10/2023]
Abstract
Context: H3K18ac is linked to gene expression and DNA damage. Nevertheless, whether H3K18ac participates in regulating Ras-ERK1/2-affected lung cancer cell phenotypes remains unclear. Objective: We explored the effects of H3K18ac on Ras-ERK1/2-affected lung cancer cell phenotypes. Material and methods: NCI-H2126 cells were transfected with, pEGFP-K-RasWT and pEGFP-K-RasG12V/T35S plasmids for 48 h, and transfection with pEGFP-N1 served as a blank control. Then H3K18ac and AKT and ERK1/2 pathways-associated factors were examined. Different amounts of the H3K18Q (0.5, 1, and 2 μg) plasmids and RasG12V/T35S were co-transfected into NCI-H2126 cells, cell viability, cell colonies and migration were analyzed for exploring the biological functions of H3K18ac in NCI-H2126 cells. The ERK1/2 pathway downstream factors were detected by RT-PCR and ChIP assays. The regulatory functions of SIRT7, GCN5 and MDM2 in Ras-ERK1/2-regulated H3K18ac expression were finally uncovered. Results: RasG12V/T35S transfection decreased the expression of H3K18ac about 2.5 times compared with the pEGFP-N1 transfection group, and activated ERK1/2 and AKT pathways. Moreover, H3K18ac reduced cell viability, colonies, migration, and altered ERK1/2 downstream transcription in NCI-H2126 cells. Additionally, SIRT7 knockdown increased H3K18ac expression and repressed cell viability, migration and the percentage of cells in S phase by about 50% compared to the control group, as well as changed ERK1/2 downstream factor expression. Besides, Ras-ERK1/2 decreased H3K18ac was linked to MDM2-regulated GCN5 degradation. Conclusion: These observations disclosed that Ras-ERK1/2 promoted the development of lung cancer via decreasing H3K18ac through MDM2-mediated GCN5 degradation. These findings might provide a new therapeutic strategy for lung cancer.
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Affiliation(s)
- Ziming Cheng
- Department of Thoracic Surgery, Linyi Central Hospital, Linyi, China
| | - Xiufeng Li
- Department of Thoracic Surgery, Linyi Central Hospital, Linyi, China
| | - Shizhen Hou
- Department of Thoracic Surgery, Linyi Central Hospital, Linyi, China
| | - Yubing Wu
- Department of Thoracic Surgery, Linyi Central Hospital, Linyi, China
| | - Yi Sun
- Department of Thoracic Surgery, Linyi Central Hospital, Linyi, China
| | - Bing Liu
- Department of Thoracic Surgery, Linyi Central Hospital, Linyi, China
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Luo M, Yan D, Sun Q, Tao J, Xu L, Sun H, Zhao H. Ginsenoside Rg1 attenuates cardiomyocyte apoptosis and inflammation via the TLR4/NF-kB/NLRP3 pathway. J Cell Biochem 2019; 121:2994-3004. [PMID: 31709615 DOI: 10.1002/jcb.29556] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 10/08/2019] [Indexed: 01/20/2023]
Abstract
Sepsis-induced myocardial dysfunction (SIMD) causes high mortality in seriously ill patients. Ginsenoside Rg1 has been proven to have effective anti-inflammatory and antiapoptotic properties. However, the specific role of Rg1 in SIMD and the molecular mechanism remain unclear. Hence, we aimed to investigate the latent effects of ginsenoside Rg1 against SIMD and explore its underlying mechanisms. Male C57BL/6J mice and neonatal rat cardiomyocytes (NRCMs) were used as in vivo and in vitro models, respectively. Western blot analysis was used to detect the level of protein expression, and reverse transcription polymerase chain reaction was conducted to determine the messenger RNA expression of inflammatory factors. The terminal deoxynucleotidyl transferase-mediated nick end labeling assay and flow cytometry were used to determine the apoptosis rate. Echocardiography was performed to assess cardiac function. The results showed that Rg1 improved cardiac function and attenuated lipopolysaccharide (LPS)-induced apoptosis and inflammation in mice. In addition, in NRCMs, Rg1 downregulated the expression of LPS-induced inflammatory cytokines and reversed the increased expression of Toll-like receptor 4 (TLR4), nuclear factor-κB (NF-κB), and NOD-like receptor 3 (NLRP3). In addition, treatment with TLR4 small interfering RNA (siRNA), a p-NF-κB inhibitor, or NLRP3 siRNA suppressed LPS-induced apoptosis and inflammation. In conclusion, Rg1 can attenuate LPS-induced inflammation and apoptosis both in NRCMs and septic mice and restore impaired cardiac function. Moreover, Rg1 may exert its effect via blocking the TLR4/NF-κB/NLRP3 pathway.
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Affiliation(s)
- Man Luo
- Department of Emergency, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
| | - Dongsheng Yan
- Department of Gastroenterological Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
| | - Qingsong Sun
- Department of Emergency, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
| | - Jiali Tao
- Department of Emergency, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
| | - Liang Xu
- Department of Emergency, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
| | - Hong Sun
- Department of Emergency, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
| | - Hongmei Zhao
- Department of Emergency, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China
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Zhang J, Liu W, Dong H, Wang W. K-Ras G12V/Y40C-PI3K/AKT pathway regulates H1.4 S35ph through PKA to promote the occurrence and development of osteosarcoma cancer. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2048-2057. [PMID: 31126199 DOI: 10.1080/21691401.2019.1617726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background: Osteosarcoma is prevalent in children and adolescents. H1.4 modification is involved in various types of cancers. Ras pathway is often activated in human cancers. Herein, we explored the effects of Ras pathway through H1.4S35ph. Methods: Osteosarcoma cancer cell line MG-63 was transfected with Ras gene with G12V and Y40C site mutation. The phosphorylation of H1.4S35 and AKT was detected by Western blot. Cell viability, cell colonies and migration were analyzed by MTT assay, soft-agar colony formation assay and Transwell assay, respectively. The expression of Ras pathway downstream factors and PKA was detected by qRT-PCR. The relationship between Ras and downstream factors was detected by ChIP. The cell cycle progression was measured by flow cytometry. Results: Transfection with RasG12V/Y40C decreased H1.4S35ph expression while switched on p-AKTSer473. RasG12V/Y40C increased cell viability, colony numbers and migration while H1.4S35E (H1.4S35ph overexpression) led to the opposite results. The regulation of RasG12V/Y40C and H1.4S35E on Ras downstream factors was contrary to each other. Results demonstrated a positive relationship between PKA with H1.4S35ph with RasG12V/Y40C down-regulated both. However, PKA and MDM2 revealed negative regulation with RasG12V/Y40C transfection up-regulated MDM2. Conclusion: RasG12V/Y40C-PI3K/AKT signal pathway decreased H1.4S35ph through down-regulation of PKA while up-regulation of MDM2 in MG-63 cells. Highlights H1.4S35ph is regulated by K-RasG12V/Y40-PI3K/AKT in MG-63 cells; Overexpression of H1.4S35ph regulates MG-63 cell growth; H1.4S35ph regulates Ras downstream factors; K-RasG12V/Y40C-PI3K/AKT activity induces PKA degradation to down-regulate H1.4S35ph; K-RasG12V/Y40C-PI3K/AKT activity involves in PKA degradation via MDM2.
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Affiliation(s)
- Jingzhe Zhang
- a Department of Orthopedics, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Wanguo Liu
- a Department of Orthopedics, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Hang Dong
- a Department of Orthopedics, China-Japan Union Hospital of Jilin University , Changchun , China
| | - Wenjun Wang
- a Department of Orthopedics, China-Japan Union Hospital of Jilin University , Changchun , China
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Gao X, Cheng Z, Yuan H, Zhao H. Retracted
: K‐Ras‐PI3K regulates H3K56ac through PCAF to elevate the occurrence and growth of liver cancer. J Cell Physiol 2019; 235:3905-3915. [DOI: 10.1002/jcp.29284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 09/30/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Xianrui Gao
- Department of General Surgery Juancheng People's Hospital Heze China
| | - Zhaoling Cheng
- Department of Gastroenterology Heze Municipal Hospital Heze China
| | - Haifeng Yuan
- Department of Gastroenterology Heze Municipal Hospital Heze China
| | - Haiwang Zhao
- Department of Hepatobiliary Surgery Heze Municipal Hospital Heze China
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Li Y, Sun D, Sun W, Yin D. Retracted: Ras-PI3K-AKT signaling promotes the occurrence and development of uveal melanoma by downregulating H3K56ac expression. J Cell Physiol 2019; 234:16032-16042. [PMID: 30770562 DOI: 10.1002/jcp.28261] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/15/2019] [Accepted: 01/15/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Uveal melanoma (UM) is an intraocular malignant tumor characterized by rapid progression and recurrence. The current conventional treatments are unsatisfactory. Histone acetylation at H3 lysine 56 (H3K56ac) has been reported to be a tumor suppressor in breast cancer. However, whether H3K56ac prevents the occurrence and development of UM remains uninvestigated. The study aimed to explore the regulatory effect of H3K56ac on Ras-PI3K-AKT induced UM cells proliferation and migration. METHODS The vectors of pEGFP-RasWT , pEGFP-K-Ras G12V/Y40C , and pEGFP-N1 were transfected into MP46 cells, and protein levels of phosphorylated AKT Ser473 and H3K56ac were examined using western blot analysis. The effect of H3K56ac on cell proliferation and migration were studied using 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide, colony formation, and Transwell assays. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and chromatin immunoprecipitation assays were performed to determine the phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) downstream genes. Further, the regulatory effects of silent mating type information regulation 2 homolog-1 (SIRT1), general control nonderepressible 5 (GCN5), and mouse double minute 2 homolog (MDM2) on Ras-PI3K-AKT affected H3K56ac expression were also investigated. RESULTS H3K56ac expression was specifically downregulated by Ras-PI3K-AKT activation pathway. H3K56ac inhibited the tumorigenic effect of Ras-PI3K-AKT on MP46 cells viability, colony formation, and migration, as well as participated in regulating the transcription of PI3K/AKT downstream genes. SIRT1 silence recovered H3K56ac expression, and reversed the tumorigenic effect of Ras-PI3K-AKT activation on MP46 cells. Downregulation of H3K56ac induced by Ras-PI3K-AKT activation was found to be associated with MDM2-mediated the degradation of GCN5. CONCLUSIONS The results demonstrated that Ras-PI3K-AKT signaling promoted UM cells proliferation and migration via downregulation of H3K56ac expression, which might be related to MDM2-mediated the degradation of GCN5.
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Affiliation(s)
- Yaping Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Dajun Sun
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Weixuan Sun
- Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Dexin Yin
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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Takahashi M. Role of NLRP3 Inflammasome in Cardiac Inflammation and Remodeling after Myocardial Infarction. Biol Pharm Bull 2019; 42:518-523. [PMID: 30930410 DOI: 10.1248/bpb.b18-00369] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An accumulating body of evidence indicates that inflammation plays a crucial role in the pathophysiology of myocardial infarction (MI). Nucleotide-binding oligomerization domain-like receptor (NLR) family pyrin domain containing 3 (NLRP3) inflammasome is an intracellular multiprotein complex that regulates caspase-1 activation and the subsequent processing of the potent inflammatory cytokine interleukin (IL)-1β as well as triggering inflammatory cell death pyroptosis. We and other investigators demonstrated that deficiency of the NLRP3 inflammasome components reduces inflammation and improves cardiac dysfunction and remodeling in rodent models of MI. Therefore, the regulation of NLRP3 inflammasome has been regarded as a potential therapeutic target for MI. Furthermore, a recent Canakinumab Antiinflammatory Thrombosis Outcome Study (CANTOS) trial revealed the efficacy of IL-1β inhibition in preventing recurrent cardiovascular events in patients with MI. This review focuses on the role of NLRP3 inflammasome in the process of cardiac inflammation and remodeling after MI, and discusses its potential as a therapeutic target for the prevention and treatment of MI.
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Affiliation(s)
- Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine Jichi Medical University
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Sang B, Sun J, Yang D, Xu Z, Wei Y. Ras-AKT signaling represses the phosphorylation of histone H1.5 at threonine 10 via GSK3 to promote the progression of glioma. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:2882-2890. [PMID: 31307224 DOI: 10.1080/21691401.2019.1638795] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ben Sang
- Department of Neurosurgery, Jining No. 1 People's Hospital, Jining, Shandong, China
- Affiliated Jining No. 1 People’s Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Jianjing Sun
- Department of Endocrinology, Jining No. 1 People's Hospital, Jining, Shandong, China
| | - Dongxu Yang
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Zhen Xu
- Department of Neurosurgery, Jining No. 1 People's Hospital, Jining, Shandong, China
| | - Yuzhen Wei
- Department of Neurosurgery, Jining No. 1 People's Hospital, Jining, Shandong, China
- Affiliated Jining No. 1 People’s Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
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Dong C, Sun J, Ma S, Zhang G. K-ras-ERK1/2 down-regulates H2A.X Y142ph through WSTF to promote the progress of gastric cancer. BMC Cancer 2019; 19:530. [PMID: 31151422 PMCID: PMC6545063 DOI: 10.1186/s12885-019-5750-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 05/24/2019] [Indexed: 12/19/2022] Open
Abstract
Background Histone H2AX phosphorylation at the site of Tyr-142 can participates in multiple biological progressions, which is including DNA repair. Ras pathway is closely involved in human cancers. Our study investigated the effects of Ras pathway via regulating H2AX.Y142ph. Methods Gastric cancer cell line SNU-16 and MKN1 cells were transfected with Ras for G12D and T35S site mutation. The phosphorylation of H2A.XY142 and ERK1/2, WSTF and MDM2 was detected by western blot. Cell viability, cell colonies and migration was analyzed by MTT assay, soft-agar colony formation assay, and Transwell assay, respectively. The expression of Ras pathway related downstream factors, EYA3 and WSTF was detected by qRT-PCR. The relationship between Ras and downstream factors were detected by ChIP. The cell cycle progression was measured by flow cytometry. Results RasG12D/T35V transection decreased the phosphorylation of H2A.XY142 and activated phosphorylation of ERK-1/2. H2A.XY142 inhibited cell viability, colonies and migration. H2A.XY142ph altered the expression of Ras downstream factors. CHIP assay revealed that RasG12D/T35V could bind to the promoters of these Ras pathway downstream factors. Silence of EYA3 increased H2A.XY142ph and inhibited cell viability, migration and percent cells in S stage. Furthermore, silence of EYA3 also changed the downstream factors expression. WSTF and H2A.XY142ph revealed the similar trend and MDM2 on the opposite. Conclusion Ras/ERK signal pathway decreased H2A.XY142ph and promoted cell growth and metastasis. This Ras regulation process was down-regulated by the cascade of MDM2-WSTF-EYA3 to decrease H2A.XY142ph in SNU-16 cells.
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Affiliation(s)
- Chao Dong
- Department of Clinical Medicine, Qujing Medical College, Qujing, 655000, Yunnan, China
| | - Jing Sun
- Department of Pharmacy, Qujing Medical College, Sanjiang Avenue, Economic Development Zone, Qilin District, Qujing, 655000, Yunnan, China
| | - Sha Ma
- Department of Pharmacy, Qujing Medical College, Sanjiang Avenue, Economic Development Zone, Qilin District, Qujing, 655000, Yunnan, China
| | - Guoying Zhang
- Department of Pharmacy, Qujing Medical College, Sanjiang Avenue, Economic Development Zone, Qilin District, Qujing, 655000, Yunnan, China.
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Shirasuna K, Karasawa T, Takahashi M. Exogenous nanoparticles and endogenous crystalline molecules as danger signals for the NLRP3 inflammasomes. J Cell Physiol 2018; 234:5436-5450. [PMID: 30370619 DOI: 10.1002/jcp.27475] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 09/04/2018] [Indexed: 12/14/2022]
Abstract
Inflammasome mechanisms are involved as some of the pathways of sterile inflammation. Inflammasomes are large multiprotein complexes in the cytosol and are a key system for the production of the pivotal inflammatory cytokines, interleukin (IL)-1β and IL-18, and inflammatory cell death called pyroptosis. Although a number of inflammasomes have been described, the nucleotide-binding oligomerization domain-, leucine-rich repeat-, and pyrin domain-containing 3 (NLRP3) is the most extensively investigated inflammasome. Exogenous pathogen-associated molecular patterns released during infection and endogenous crystalline danger/damage-associated molecular patterns (DAMPs) are well-known activators of NLRP3 inflammasomes. In addition, nanoparticle-associated molecular patterns (NAMPs), which are mediated by synthetic materials, including nanomaterials and nanoparticles, are proposed to be new danger signals of NLRP3 inflammasomes. Importantly, NAMP- and DAMP-triggered inflammation, a defining characteristic in inflammatory diseases, is termed as sterile inflammation because it occurs in the absence of foreign pathogens. This review focuses on the role of inflammasomes in exogenous NAMP- and endogenous crystalline DAMP-mediated sterile inflammation. Moreover, many regulatory mechanisms have been identified to attenuate NLRP3 inflammasomes. Therefore, we also summarize endogenous negative regulators of NLRP3 inflammasome activation, particularly induced by NAMPs or crystalline DAMPs.
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Affiliation(s)
- Koumei Shirasuna
- Department of Animal Science, Tokyo University of Agriculture, Japan
| | - Tadayoshi Karasawa
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Japan
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Japan
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Wang F, Yu Z, Wang W, Li Y, Lu G, Qu C, Wang H, Lu M, Wang L, Song L. A novel caspase-associated recruitment domain (CARD) containing protein (CgCARDCP-1) involved in LPS recognition and NF-κB activation in oyster (Crassostrea gigas). FISH & SHELLFISH IMMUNOLOGY 2018; 79:120-129. [PMID: 29751033 DOI: 10.1016/j.fsi.2018.05.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 06/08/2023]
Abstract
Caspase-associated recruitment domain (CARD) containing proteins play critical roles in molecular interaction and regulation of various signaling pathways, such as the activation of caspase and NF-κB singling pathway in the process of apoptosis or inflammation. In the present study, a novel CARD containing protein (designed CgCARDCP-1) was identified and characterized from oyster Crassostrea gigas. Molecular feature analysis revealed that, the open reading frame (ORF) of CgCARDCP-1 gene was 759 bp encoding a polypeptide of 253 amino acids with a conserved N-terminal CARD domain and two transcriptional coactivator p15 (PC4) domains in C-terminus. Homologous alignment showed that the amino acid sequence of CgCARDCP-1 shared 30%-46% identity with that of caspase-2. By RT-PCR detection, the mRNA transcripts of CgCARDCP-1 were found to be widely distributed in various tissues of oyster with the highest expression level in hemocytes and mantle. And CgCARDCP-1 protein was mostly distributed in the cytoplasm of oyster hemocytes as shown by immunohistochemistry. Moreover, the CgCARDCP-1 mRNA expression level in hemocytes was significantly up-regulated after lipopolysaccharide (LPS) and Vibrio splendidus stimulations. The recombinant CgCARDCP-1 displayed strong binding activity with LPS in vitro. In addition, after transfected into the HEK-293T cell with luciferase reporter system, CgCARDCP-1 could significantly promote the NF-κB activation (1.29-fold, p < 0.05) compared to that in the control group. These results collectively demonstrated that the CgCARDCP-1 might serve as a recognition molecule for LPS and a regulator of NF-κB activation in the immune response of oyster.
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Affiliation(s)
- Feifei Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Zichao Yu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory for Marine Fisheries Science and Food Production Processes, National Laboratory for Marine Science and Technology, Qingdao, 266235, China
| | - Weilin Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Yiqun Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Guangxia Lu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Chen Qu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Hui Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Mengmeng Lu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Disease Prevention and Control for Aquaculture Animals, Dalian Ocean University, Dalian, 116023, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Laboratory for Marine Fisheries Science and Food Production Processes, National Laboratory for Marine Science and Technology, Qingdao, 266235, China.
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Nanson JD, Rahaman MH, Ve T, Kobe B. Regulation of signaling by cooperative assembly formation in mammalian innate immunity signalosomes by molecular mimics. Semin Cell Dev Biol 2018; 99:96-114. [PMID: 29738879 DOI: 10.1016/j.semcdb.2018.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 03/18/2018] [Accepted: 05/04/2018] [Indexed: 12/16/2022]
Abstract
Innate immunity pathways constitute the first line of defense against infections and cellular damage. An emerging concept in these pathways is that signaling involves the formation of finite (e.g. rings in NLRs) or open-ended higher-order assemblies (e.g. filamentous assemblies by members of the death-fold family and TIR domains). This signaling by cooperative assembly formation (SCAF) mechanism allows rapid and strongly amplified responses to minute amounts of stimulus. While the characterization of the molecular mechanisms of SCAF has seen rapid progress, little is known about its regulation. One emerging theme involves proteins produced both in host cells and by pathogens that appear to mimic the signaling components. Recently characterized examples involve the capping of the filamentous assemblies formed by caspase-1 CARDs by the CARD-only protein INCA, and those formed by caspase-8 by the DED-containing protein MC159. By contrast, the CARD-only protein ICEBERG and the DED-containing protein cFLIP incorporate into signaling filaments and presumably interfere with proximity based activation of caspases. We review selected examples of SCAF in innate immunity pathways and focus on the current knowledge on signaling component mimics produced by mammalian and pathogen cells and what is known about their mechanisms of action.
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Affiliation(s)
- Jeffrey D Nanson
- School of Chemistry and Molecular Biosciences, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Md Habibur Rahaman
- School of Chemistry and Molecular Biosciences, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Thomas Ve
- School of Chemistry and Molecular Biosciences, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia; Institute for Glycomics, Griffith University, Southport, QLD, 4222, Australia
| | - Bostjan Kobe
- School of Chemistry and Molecular Biosciences, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, QLD, 4072, Australia.
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Karasawa T, Kawashima A, Usui-Kawanishi F, Watanabe S, Kimura H, Kamata R, Shirasuna K, Koyama Y, Sato-Tomita A, Matsuzaka T, Tomoda H, Park SY, Shibayama N, Shimano H, Kasahara T, Takahashi M. Saturated Fatty Acids Undergo Intracellular Crystallization and Activate the NLRP3 Inflammasome in Macrophages. Arterioscler Thromb Vasc Biol 2018; 38:744-756. [PMID: 29437575 DOI: 10.1161/atvbaha.117.310581] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 01/25/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Inflammation provoked by the imbalance of fatty acid composition, such as excess saturated fatty acids (SFAs), is implicated in the development of metabolic diseases. Recent investigations suggest the possible role of the NLRP3 (nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain containing 3) inflammasome, which regulates IL-1β (interleukin 1β) release and leads to inflammation, in this process. Therefore, we investigated the underlying mechanism by which SFAs trigger NLRP3 inflammasome activation. APPROACH AND RESULTS The treatment with SFAs, such as palmitic acid and stearic acid, promoted IL-1β release in murine primary macrophages while treatment with oleic acid inhibited SFA-induced IL-1β release in a dose-dependent manner. Analyses using polarized light microscopy revealed that intracellular crystallization was provoked in SFA-treated macrophages. As well as IL-1β release, the intracellular crystallization and lysosomal dysfunction were inhibited in the presence of oleic acid. These results suggest that SFAs activate NLRP3 inflammasome through intracellular crystallization. Indeed, SFA-derived crystals activated NLRP3 inflammasome and subsequent IL-1β release via lysosomal dysfunction. Excess SFAs also induced crystallization and IL-1β release in vivo. Furthermore, SFA-derived crystals provoked acute inflammation, which was impaired in IL-1β-deficient mice. CONCLUSIONS These findings demonstrate that excess SFAs cause intracellular crystallization and subsequent lysosomal dysfunction, leading to the activation of the NLRP3 inflammasome, and provide novel insights into the pathogenesis of metabolic diseases.
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Affiliation(s)
- Tadayoshi Karasawa
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.).
| | - Akira Kawashima
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Fumitake Usui-Kawanishi
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Sachiko Watanabe
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Hiroaki Kimura
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Ryo Kamata
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Koumei Shirasuna
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Yutaro Koyama
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Ayana Sato-Tomita
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Takashi Matsuzaka
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Hiroshi Tomoda
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Sam-Yong Park
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Naoya Shibayama
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Hitoshi Shimano
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Tadashi Kasahara
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.)
| | - Masafumi Takahashi
- From the Division of Inflammation Research, Center for Molecular Medicine (T. Karasawa, A.K., F.U.-K., S.W., H.K., R.K., K.S., Y.K., T. Kasahara, M.T.) and Division of Biophysics, Department of Physiology (A.S.-T., N.S.), Jichi Medical University, Tochigi, Japan; Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Ibaraki, Japan (T.M., H.S.); Graduate School of Pharmaceutical Sciences, Kitasato University, Tokyo, Japan (H.T.); and Drug Design Laboratory, Graduate School of Medical Life Science, Yokohama City University, Kanagawa, Japan (S.-Y.P.).
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35
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Kawashima A, Karasawa T, Tago K, Kimura H, Kamata R, Usui-Kawanishi F, Watanabe S, Ohta S, Funakoshi-Tago M, Yanagisawa K, Kasahara T, Suzuki K, Takahashi M. ARIH2 Ubiquitinates NLRP3 and Negatively Regulates NLRP3 Inflammasome Activation in Macrophages. THE JOURNAL OF IMMUNOLOGY 2017; 199:3614-3622. [PMID: 29021376 DOI: 10.4049/jimmunol.1700184] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 09/15/2017] [Indexed: 12/12/2022]
Abstract
The nucleotide-binding oligomerization domain-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is a molecular platform that induces caspase-1 activation and subsequent IL-1β maturation, and is implicated in inflammatory diseases; however, little is known about the negative regulation of NLRP3 inflammasome activation. In this article, we identified an E3 ligase, Ariadne homolog 2 (ARIH2), as a posttranslational negative regulator of NLRP3 inflammasome activity in macrophages. ARIH2 interacted with NLRP3 via its NACHT domain (aa 220-575) in the NLRP3 inflammasome complex. In particular, we found that while using mutants of ARIH2 and ubiquitin, the really interesting new gene 2 domain of ARIH2 was required for NLRP3 ubiquitination linked through K48 and K63. Deletion of endogenous ARIH2 using CRISPR/Cas9 genome editing inhibited NLRP3 ubiquitination and promoted NLRP3 inflammasome activation, resulting in apoptosis-associated speck-like protein containing a caspase recruitment domain oligomerization, pro-IL-1β processing, and IL-1β production. Conversely, ARIH2 overexpression promoted NLRP3 ubiquitination and inhibited NLRP3 inflammasome activation. Our findings reveal a novel mechanism of ubiquitination-dependent negative regulation of the NLRP3 inflammasome by ARIH2 and highlight ARIH2 as a potential therapeutic target for inflammatory diseases.
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Affiliation(s)
- Akira Kawashima
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan;
| | - Tadayoshi Karasawa
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Kenji Tago
- Department of Biochemistry, Jichi Medical University, Tochigi 329-0498, Japan
| | - Hiroaki Kimura
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Ryo Kamata
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Fumitake Usui-Kawanishi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Sachiko Watanabe
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Satoshi Ohta
- Department of Biochemistry, Jichi Medical University, Tochigi 329-0498, Japan
| | | | - Ken Yanagisawa
- Department of Biochemistry, Jichi Medical University, Tochigi 329-0498, Japan
| | - Tadashi Kasahara
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Koichi Suzuki
- Department of Clinical Laboratory Science, Faculty of Medical Technology, Teikyo University, Tokyo 173-8605, Japan
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan;
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36
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Indramohan M, Stehlik C, Dorfleutner A. COPs and POPs Patrol Inflammasome Activation. J Mol Biol 2017; 430:153-173. [PMID: 29024695 DOI: 10.1016/j.jmb.2017.10.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/28/2017] [Accepted: 10/04/2017] [Indexed: 01/07/2023]
Abstract
Sensing and responding to pathogens and tissue damage is a core mechanism of innate immune host defense, and inflammasomes represent a central cytosolic pattern recognition receptor pathway leading to the generation of the pro-inflammatory cytokines interleukin-1β and interleukin-18 and pyroptotic cell death that causes the subsequent release of danger signals to propagate and perpetuate inflammatory responses. While inflammasome activation is essential for host defense, deregulated inflammasome responses and excessive release of inflammatory cytokines and danger signals are linked to an increasing spectrum of inflammatory diseases. In this review, we will discuss recent developments in elucidating the role of PYRIN domain-only proteins (POPs) and the related CARD-only proteins (COPs) in regulating inflammasome responses and their impact on inflammatory disease.
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Affiliation(s)
- Mohanalaxmi Indramohan
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Christian Stehlik
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Interdepartmental Immunobiology Center and Skin Disease Research Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
| | - Andrea Dorfleutner
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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37
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Karasawa T, Takahashi M. The crystal-induced activation of NLRP3 inflammasomes in atherosclerosis. Inflamm Regen 2017; 37:18. [PMID: 29259717 PMCID: PMC5725911 DOI: 10.1186/s41232-017-0050-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/13/2017] [Indexed: 01/22/2023] Open
Abstract
Atherosclerosis is an inflammatory disease, which is accompanied by the deposition of cholesterol-rich lipids and the infiltration of macrophages. Other well-known features of atherosclerotic lesions include the deposition of cholesterol crystals and calcium phosphate crystals; however, their pathophysiological role remains unclear. Recent studies suggest that cholesterol crystals play a pivotal role in activation of NLRP3 inflammasomes, which regulate caspase-1 activation and the subsequent processing of IL-1β, in atherosclerotic lesions. NLRP3 inflammasomes are essential for the initiation of vascular inflammation during the progression of atherosclerosis. Therefore, the regulatory mechanisms of NLRP3 inflammasomes are regarded as potential targets for atherosclerosis treatment. Here, we review the current knowledge regarding the role of NLRP3 inflammasomes in the progression of atherosclerosis and the prospects for therapeutic approaches targeting NLRP3 inflammasomes.
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Affiliation(s)
- Tadayoshi Karasawa
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498 Japan
| | - Masafumi Takahashi
- Division of Inflammation Research, Center for Molecular Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498 Japan
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38
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Yogarajah T, Ong KC, Perera D, Wong KT. AIM2 Inflammasome-Mediated Pyroptosis in Enterovirus A71-Infected Neuronal Cells Restricts Viral Replication. Sci Rep 2017; 7:5845. [PMID: 28724943 PMCID: PMC5517550 DOI: 10.1038/s41598-017-05589-2] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/31/2017] [Indexed: 01/17/2023] Open
Abstract
Encephalomyelitis is a well-known complication of hand, foot, and mouth disease (HFMD) due to Enterovirus 71 (EV71) infection. Viral RNA/antigens could be detected in the central nervous system (CNS) neurons in fatal encephalomyelitis but the mechanisms of neuronal cell death is not clearly understood. We investigated the role of absent in melanoma 2 (AIM2) inflammasome in neuronal cell death, and its relationship to viral replication. Our transcriptomic analysis, RT-qPCR, Western blot, immunofluorescence and flow cytometry studies consistently showed AIM2 gene up-regulation and protein expression in EV-A71-infected SK-N-SH cells. Downstream AIM2-induced genes, CARD16, caspase-1 and IL-1β were also up-regulated and caspase-1 was activated to form cleaved caspase-1 p20 subunits. As evidenced by 7-AAD positivity, pyroptosis was confirmed in infected cells. Overall, these findings have a strong correlation with decreases in viral titers, copy numbers and proteins, and reduced proportions of infected cells. AIM2 and viral antigens were detected by immunohistochemistry in infected neurons in inflamed areas of the CNS in EV-A71 encephalomyelitis. In infected AIM2-knockdown cells, AIM2 and related downstream gene expressions, and pyroptosis were suppressed, resulting in significantly increased virus infection. These results support the notion that AIM2 inflammasome-mediated pyroptosis is an important mechanism of neuronal cell death and it could play an important role in limiting EV-A71 replication.
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Affiliation(s)
- Thinesshwary Yogarajah
- Department of Pathology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kien Chai Ong
- Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - David Perera
- Institute of Health and Community Medicine, University Malaysia Sarawak, Sarawak, Malaysia
| | - Kum Thong Wong
- Department of Pathology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
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39
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Hoss F, Rodriguez-Alcazar JF, Latz E. Assembly and regulation of ASC specks. Cell Mol Life Sci 2017; 74:1211-1229. [PMID: 27761594 PMCID: PMC11107573 DOI: 10.1007/s00018-016-2396-6] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/28/2016] [Accepted: 10/10/2016] [Indexed: 12/11/2022]
Abstract
The inflammasome adapter ASC links activated inflammasome sensors to the effector molecule pro-caspase-1. Recruitment of pro-caspase-1 to ASC promotes the autocatalytic activation of caspase-1, which leads to the release of pro-inflammatory cytokines, such as IL-1β. Upon triggering of inflammasome sensors, ASC assembles into large helical fibrils that interact with each other serving as a supramolecular signaling platform termed the ASC speck. Alternative splicing, post-translational modifications of ASC, as well as interaction with other proteins can perturb ASC function. In several inflammatory diseases, ASC specks can be found in the extracellular space and its presence correlates with poor prognosis. Here, we review the role of ASC in inflammation, and focus on the structural mechanisms that lead to ASC speck formation, the regulation of ASC function during inflammasome assembly, and the importance of ASC specks in disease.
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Affiliation(s)
- Florian Hoss
- Institute of Innate Immunity, University Hospitals, University of Bonn, Sigmund-Freud-Straße 25, 53127, Bonn, Germany
| | - Juan F Rodriguez-Alcazar
- Institute of Innate Immunity, University Hospitals, University of Bonn, Sigmund-Freud-Straße 25, 53127, Bonn, Germany
| | - Eicke Latz
- Institute of Innate Immunity, University Hospitals, University of Bonn, Sigmund-Freud-Straße 25, 53127, Bonn, Germany.
- Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA, USA.
- German Center for Neurodegenerative Diseases, Bonn, Germany.
- Department of Cancer Research and Molecular Medicine, Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, Trondheim, Norway.
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40
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Abstract
Inflammasomes are multiprotein signalling platforms that control the inflammatory response and coordinate antimicrobial host defences. They are assembled by pattern-recognition receptors following the detection of pathogenic microorganisms and danger signals in the cytosol of host cells, and they activate inflammatory caspases to produce cytokines and to induce pyroptotic cell death. The clinical importance of inflammasomes reaches beyond infectious disease, as dysregulated inflammasome activity is associated with numerous hereditary and acquired inflammatory disorders. In this Review, we discuss the recent developments in inflammasome research with a focus on the molecular mechanisms that govern inflammasome assembly, signalling and regulation.
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Affiliation(s)
- Petr Broz
- Focal Area Infection Biology, Biozentrum, University of Basel, CH-4056 Basel, Switzerland
| | - Vishva M Dixit
- Genentech Inc., South San Francisco, California 94080, USA
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41
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NZ suppresses TLR4/NF-κB signalings and NLRP3 inflammasome activation in LPS-induced RAW264.7 macrophages. Inflamm Res 2015; 64:799-808. [DOI: 10.1007/s00011-015-0863-4] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 12/13/2022] Open
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