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nucleotide-binding domain and leucine-rich repeat protein 3 (NLRP3)

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https://www.readbyqxmd.com/read/29321274/irf1-is-a-transcriptional-regulator-of-zbp1-promoting-nlrp3-inflammasome-activation-and-cell-death-during-influenza-virus-infection
#1
Teneema Kuriakose, Min Zheng, Geoffrey Neale, Thirumala-Devi Kanneganti
Innate immune sensing of influenza A virus (IAV) induces activation of various immune effector mechanisms, including the nucleotide and oligomerization domain, leucine-rich repeat-containing protein family, pyrin domain containing 3 (NLRP3) inflammasome and programmed cell death pathways. Although type I IFNs are identified as key mediators of inflammatory and cell death responses during IAV infection, the involvement of various IFN-regulated effectors in facilitating these responses are less studied. In this study, we demonstrate the role of IFN regulatory factor (IRF)1 in promoting NLRP3 inflammasome activation and cell death during IAV infection...
January 10, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29285164/resveratrol-alleviates-staphylococcus-aureus-pneumonia-by-inhibition-of-the-nlrp3-inflammasome
#2
Suxia Wu, Jianan Huang
Staphylococcus aureus (S. aureus) causes a wide variety of infections, including S. aureus pneumonia. Resveratrol, a natural polyphenolic compound contained in several plant species, exerts various activities, including anti-bacterial and pulmonary protective activities. The aim of the present study was to evaluate the protective effect of resveratrol on a murine model of S. aureus pneumonia and to elucidate the underlying mechanisms. It was found that resveratrol significantly reduced S. aureus-induced mortality, ameliorated lung injury and decreased cytokine levels in the bronchoalveolar lavage fluid and lung tissue of S...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29258190/ifn-%C3%AE-a-contentious-player-in-host-pathogen-interaction-in-tuberculosis
#3
REVIEW
Naveed Sabir, Tariq Hussain, Syed Zahid Ali Shah, Deming Zhao, Xiangmei Zhou
Tuberculosis (TB) is a major health threat to the human population worldwide. The etiology of the disease is Mycobacterium tuberculosis (Mtb), a highly successful intracellular pathogen. It has the ability to manipulate the host immune response and to make the intracellular environment suitable for its survival. Many studies have addressed the interactions between the bacteria and the host immune cells as involving many immune mediators and other cellular players. Interferon-β (IFN-β) signaling is crucial for inducing the host innate immune response and it is an important determinant in the fate of mycobacterial infection...
December 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29222907/the-ameliorative-effect-of-fluoxetine-on-neuroinflammation-induced-by-sleep-deprivation
#4
Maosheng Xia, Xiaowei Li, Li Yang, Jiaan Ren, Guangfeng Sun, Shuang Qi, Alexei Verkhratsky, Baoman Li
It is well known that sleep disorders are harmful to people's health and performance, and growing evidence suggests that sleep deprivation (SD) can trigger neuroinflammation in the brain. The nucleotide-binding domain and leucine-rich repeat protein-3 (NLRP3) inflammasome is reported to be relevant to the neuroinflammation induced by SD, but the regulatory signaling that governs the NLRP3 inflammasome in SD is still unknown. Meanwhile, whether the regulatory action of antidepressants in astrocytes could affect the neuroinflammation induced by SD also remains obscure...
December 9, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29192367/intermedin1-53-protects-cardiac-fibroblasts-by-inhibiting-nlrp3-inflammasome-activation-during-sepsis
#5
Di Wu, Lin Shi, Pengyang Li, Xianqiang Ni, Jinsheng Zhang, Qing Zhu, Yongfen Qi, Bin Wang
Sepsis is a disease that occurs as a result of systemic inflammatory response syndrome (SIRS) in response to an infection, contributing to multiple organ dysfunction and a high mortality rate. Interleukin-lβ (IL-1β) is a cytokine that plays critical roles in inflammation and cardiac dysfunction during severe sepsis. Intermedin1-53 (IMD1-53) has been recently discovered to possess potential endogenous anti-inflammatory and strong cardiovascular protective effects. To investigate whether IMD1-53 can inhibit the NLRP3/caspase-1/IL-1β pathway to alleviate cardiac injury and rescue heart function, sepsis was induced in vivo by caecal ligation and puncture (CLP) surgery, and lipopolysaccharides were used as septic stressors for cardiac fibroblasts (CFs) in vitro...
December 1, 2017: Inflammation
https://www.readbyqxmd.com/read/29105345/estradiol-inhibits-nlrp3-inflammasome-in-fibroblast-like-synoviocytes-activated-by-lipopolysaccharide-and-adenosine-triphosphate
#6
Jianfeng Shi, Weibo Zhao, Haijian Ying, Ying Zhang, Juping Du, Shuaishuai Chen, Jun Li, Bo Shen
OBJECTIVE: Nucleotide binding domain and leucine-rich repeat pyrin 3 domain (NLRP3) inflammasome is known for activating pro-inflammatory cytokines in knee osteoarthritis (OA). This study was performed to identify whether NLRP3 inflammasome can be triggered by lipopolysaccharides (LPS) and adenosine triphos adenine (ATP), which are positively related with knee OA severity in joint-spaces, in human fibroblast-like synoviocytes (FLS), and to identify whether estrogen would inhibit the activation of NLRP3 inflammasome...
November 3, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29063476/fungal-%C3%AE-glucan-activates-the-nlrp3-inflammasome-in-human-bronchial-epithelial-cells-through-ros-production
#7
Yanhua Huang, Meng Hua, Xuefan Cui
The nucleotide-binding domain and leucine-rich repeat protein 3 (NLRP3) inflammasome has developed as an important bridge between innate immune and infection recently, and has the ability to drive proteolytic procaspase-1 into bioactive caspase-1, then responsible for proteolytic processing of inflammatory cytokines IL-1β and IL-18. Fungal β-glucan, a major component of fungal cell wall, triggers inflammatory response in multiple immune cells, but rarely described in epithelial cells. Also, the relationship between fungal β-glucan and NLRP3 inflammasome is not clear yet...
October 23, 2017: Inflammation
https://www.readbyqxmd.com/read/28972154/neutrophil-microparticle-production-and-inflammasome-activation-by-hyperglycemia-due-to-cytoskeletal-instability
#8
Stephen R Thom, Veena M Bhopale, Kevin Yu, Weiliang Huang, Maureen A Kane, David J Margolis
Microparticles are lipid bilayer-enclosed vesicles produced by cells under oxidative stress. MP production is elevated in patients with diabetes, but the underlying cellular mechanisms are poorly understood. We hypothesized that raising glucose above the physiological level of 5.5 mm would stimulate leukocytes to produce MPs and activate the nucleotide-binding domain, leucine-rich repeat pyrin domain-containing 3 (NLRP3) inflammasome. We found that when incubated in buffer with up to 20 mm glucose, human and murine neutrophils, but not monocytes, generate progressively more MPs with high interleukin (IL)-1β content...
November 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28942141/carbon-monoxide-regulates-glycolysis-dependent-nlrp3-inflammasome-activation-in-macrophages
#9
Do Won Lee, Ha Young Shin, Ji Hun Jeong, Jaeseok Han, Seongho Ryu, Kiichi Nakahira, Jong-Seok Moon
Low dose of carbon monoxide (CO) has anti-inflammatory role through various signaling pathways. Cellular metabolism has been implicated in the activation of inflammation in immune cells. However, the mechanisms by which CO-dependent metabolic regulation affect the immune response remain unclear. Here we show that CO-dependent metabolic pathway regulates the activation of the nucleotide-binding domain, leucine-rich-repeat-containing receptor (NLR), pyrin-domain-containing 3 (NLRP3) inflammasome. CO-releasing molecule-3 (CORM-3) resulted in reduced glycolysis-dependent NLRP3 inflammasome activation in macrophages...
November 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28796264/lytic-cell-death-induced-by-melittin-bypasses-pyroptosis-but-induces-nlrp3-inflammasome-activation-and-il-1%C3%AE-release
#10
Fátima Martín-Sánchez, Juan José Martínez-García, María Muñoz-García, Miriam Martínez-Villanueva, José A Noguera-Velasco, David Andreu, Luís Rivas, Pablo Pelegrín
The nucleotide-binding domain and leucine-rich repeat-containing receptor with a pyrin domain 3 (NLRP3) inflammasome is a sensor for different types of infections and alterations of homeostatic parameters, including abnormally high levels of the extracellular nucleotide ATP or crystallization of different metabolites. All NLRP3 activators trigger a similar intracellular pathway, where a decrease in intracellular K(+) concentration and permeabilization of plasma membrane are key steps. Cationic amphipathic antimicrobial peptides and peptide toxins permeabilize the plasma membrane...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28790324/the-h7n9-influenza-a-virus-infection-results-in-lethal-inflammation-in-the-mammalian-host-via-the-nlrp3-caspase-1-inflammasome
#11
Rongrong Ren, Shuxian Wu, Jialin Cai, Yuqin Yang, Xiaonan Ren, Yanling Feng, Lixiang Chen, Boyin Qin, Chunhua Xu, Hua Yang, Zhigang Song, Di Tian, Yunwen Hu, Xiaohui Zhou, Guangxun Meng
The avian origin influenza A virus (IAV) H7N9 has caused a considerable number of human infections associated with high rates of death since its emergence in 2013. As a vital component of the host innate immune system, the nucleotide-binding domain leucine-rich repeat containing receptor, pyrin domain containing 3 (NLRP3) inflammasome plays a critical role against H1N1 viral infection. However, the function of NLRP3 inflammasome in host immunological responses to the lethal H7N9 virus is still obscure. Here, we demonstrated that mice deficient for NLRP3 inflammasome components, including NLRP3, caspase-1, and Apoptosis-associated speck-like protein containing a CARD (ASC), were less susceptible to H7N9 viral challenge than wild type (WT) controls...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28783694/zbp1-dai-is-an-innate-sensor-of-influenza-virus-triggering-the-nlrp3-inflammasome-and-programmed-cell-death-pathways
#12
Teneema Kuriakose, Si Ming Man, R K Subbarao Malireddi, Rajendra Karki, Sannula Kesavardhana, David E Place, Geoffrey Neale, Peter Vogel, Thirumala-Devi Kanneganti
The interferon (IFN)-inducible protein Z-DNA binding protein 1 [ZBP1; also known as DNA-dependent activator of IFN regulatory factors (DAI) and DLM-1] was identified as a double-stranded DNA sensor, which instigates innate immune responses. However, this classification has been disputed, and whether ZBP1 functions as a pathogen sensor during an infection has remained unknown. We demonstrated ZBP1-mediated sensing of the influenza A virus (IAV) proteins NP and PB1, triggering cell death and inflammatory responses via the receptor-interacting protein kinase 1 (RIPK1)-RIPK3-caspase-8 axis...
August 12, 2016: Science Immunology
https://www.readbyqxmd.com/read/28631886/nlrp3-expression-and-urinary-hsp72-in-relation-to-biomarkers-of-inflammation-and-oxidative-stress-in-diabetic-nephropathy-patients
#13
Hemat El-Sayed El-Horany, Rania Nagi Abd-Ellatif, Mona Watany, Yasser M Hafez, Hanaa Ibrahim Okda
Diabetic nephropathy (DN) is one of the major causes of end-stage renal disease. Nod-like receptors nucleotide-binding domain and leucine-rich repeat pyrin-3 domain (NLRP3) inflammasome displays a considerable role in the chronic inflammatory state observed in diabetic patients. Urinary heat shock protein 72 (uHSP72) is a sensitive and specific biomarker for the early detection of acute kidney injury. The aim of this study was to evaluate NLRP3 relative gene expression, its correlation with inflammatory and oxidative stress markers, and to assess the value of uHSP72 in the early detection of DN in type 2 diabetic patients with different degrees of DN...
August 2017: IUBMB Life
https://www.readbyqxmd.com/read/28592027/-glyburide-prevents-pulmonary-artery-smooth-muscle-cell-proliferation-and-migration-via-inhibiting-nlrp3-activation
#14
Y F Liu, W Wang, T Liu, W Zhang, J Liu, J Wang
Objective: To investigate whether glyburide prevents platelet-derived growth factor (PDGF) induced pulmonary artery smooth muscle cells(PASMCs) proliferation and migration via inhibiting nucleotide binding domain leucine-rich repeat-containing receptors protein 3(NLRP3) inflammasome activation. Methods: PASMCs were divided into 4 groups: control group, glyburide group, PDGF group and PDGF+ glyburide group. Cell proliferation and migration were assessed by MTT and Transwell respectively. The NLRP3 inflammasome activation was assessed by Western blot...
June 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28460353/baicalin-ameliorates-chronic-unpredictable-mild-stress-induced-depressive-behavior-involving-the-inhibition-of-nlrp3-inflammasome-activation-in-rat-prefrontal-cortex
#15
Xiaoxin Liu, Chao Liu
Abnormal activation of nucleotide-binding domain, leucine-rich repeat, pyrin domain containing protein 3 (NLRP3) inflammasome could induce inflammation in the central nervous system and result in the hyperactivity of HPA axis, which were involved in the pathophysiology of depression. Baicalin, a major polyphenol compound extracts from Scutellaria radix roots, has been previously confirmed to normalize the hyperactivity of HPA axis in rats received chronic mild stress. However, its antidepressant effects and mechanisms are remains unclear in chronic unpredictable mild stress (CUMS) model of depression...
July 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28403163/impact-of-human-monocyte-and-macrophage-polarization-on-nlr-expression-and-nlrp3-inflammasome-activation
#16
Fawaz Awad, Eman Assrawi, Claire Jumeau, Sophie Georgin-Lavialle, Laetitia Cobret, Philippe Duquesnoy, William Piterboth, Lucie Thomas, Katia Stankovic-Stojanovic, Camille Louvrier, Irina Giurgea, Gilles Grateau, Serge Amselem, Sonia-Athina Karabina
Inflammasomes are multiprotein complexes nucleating around an NLR (Nucleotide-binding domain and Leucine-rich Repeat containing protein), which regulate the secretion of the pro-inflammatory interleukin (IL)-1β and IL-18 cytokines. Monocytes and macrophages, the main cells expressing the inflammasome genes, adapt to their surrounding microenvironment by a phenotypic polarization towards a pro-inflammatory M1 phenotype that promotes inflammation or an anti-inflammatory M2 phenotype important for resolution of inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/28337127/nlrp3-inflammasome-in-neurological-diseases-from-functions-to-therapies
#17
REVIEW
Limin Song, Lei Pei, Shanglong Yao, Yan Wu, You Shang
Neuroinflammation has been identified as a causative factor of multiple neurological diseases. The nucleotide-binding oligomerization domain-, leucine-rich repeat- and pyrin domain-containing 3 (NLRP3) inflammasome, a subcellular multiprotein complex that is abundantly expressed in the central nervous system (CNS), can sense and be activated by a wide range of exogenous and endogenous stimuli such as microbes, aggregated and misfolded proteins, and adenosine triphosphate, which results in activation of caspase-1...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28271611/nlrp3-inflammasome-activation-is-associated-with-proliferative-diabetic-retinopathy
#18
Sirpa Loukovaara, Niina Piippo, Kati Kinnunen, Maria Hytti, Kai Kaarniranta, Anu Kauppinen
PURPOSE: Innate immunity and dysregulation of inflammatory processes play a role in vascular diseases like atherosclerosis or diabetes. Nucleotide-binding domain and Leucine-rich repeat Receptor containing a Pyrin domain 3 (NLRP3) inflammasomes are pro-inflammatory signalling complexes that were found in 2002. In addition to pathogens and other extracellular threats, they can be activated by various endogenous danger signals. The purpose of this study was to find out whether NLRP3 activation occurs in patients with sight-threatening forms of diabetic retinopathy (DR)...
March 8, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28266737/epidermal-keratinocytes-sense-dsrna-via-the-nlrp3-inflammasome-mediating-interleukin-il-1%C3%AE-and-il-18-release
#19
Xiuju Dai, Mikiko Tohyama, Masamoto Murakami, Koji Sayama
Skin epidermis, in addition to its barrier function, is able to actively sense harmful pathogens using pattern recognition receptors. In immune cells, the nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain containing 3 (NLRP3) inflammasome can mediate innate immunity against viral infection via a mechanism involving viral dsRNA recognition. Epidermal keratinocytes express NLRP3 inflammasome, which can sense contact sensitizers and mite allergens, leading to pro-interleukin (IL)-1β and pro-IL-18 cleavage into their active forms...
March 7, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28247334/the-nlrp3-inflammasome-is-involved-in-the-pathogenesis-of-parkinson-s-disease-in-rats
#20
Zhijuan Mao, Chanchan Liu, Suqiong Ji, Qingmei Yang, Hongxiang Ye, Haiyan Han, Zheng Xue
The etiology and pathogenesis of Parkinson's disease (PD) are complicated and have not been fully elucidated, but an important association has been identified between inflammation and PD. In this study, we investigated the role of the nucleotide-binding oligomerization domain, leucine rich repeat and pyrin domain-containing (NLRP) 3 inflammasome, consisting of NLRP3, caspase-1 and cytokines of the IL-1 family, in lipopolysaccharide (LPS)-induced and 6-hydroxydopamine (6-OHDA)-induced PD rats. Microinjection of different doses of caspase-1 inhibitor (Ac-YVAD-CMK, 300 or 1200 ng/rat) was performed for seven consecutive days...
April 2017: Neurochemical Research
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