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NOD like receptor

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https://www.readbyqxmd.com/read/28432942/insights-into-the-diversity-of-nod-like-receptors-identification-and-expression-analysis-of-nlrc3-nlrc5-and-nlrx1-in-rainbow-trout
#1
Claudio A Álvarez, Felipe Ramírez-Cepeda, Paula Santana, Elisa Torres, Jimena Cortés, Fanny Guzmán, Paulina Schmitt, Luis Mercado
Nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) are efficient soluble intracellular sensors that activate defense mechanisms against pathogens. In teleost fish, the involvement of NLRs in the immune response is not well understood. However, recent work has evidenced the expression of different NLRs in response to some pathogen associated molecular patterns (PAMPs). In the present work, the cDNA sequence encoding three new NOD-like receptors were identified in Oncorhynchus mykiss, namely OmNLRC3, OmNLRC5 and OmNLRX1...
April 19, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28432285/nod1-modulates-il-10-signalling-in-human-dendritic-cells
#2
Theresa Neuper, Kornelia Ellwanger, Harald Schwarz, Thomas A Kufer, Albert Duschl, Jutta Horejs-Hoeck
NOD1 belongs to the family of NOD-like receptors, which is a group of well-characterised, cytosolic pattern-recognition receptors. The best-studied function of NOD-like receptors is their role in generating immediate pro-inflammatory and antimicrobial responses by detecting specific bacterial peptidoglycans or by responding to cellular stress and danger-associated molecules. The present study describes a regulatory, peptidoglycan-independent function of NOD1 in anti-inflammatory immune responses. We report that, in human dendritic cells, NOD1 balances IL-10-induced STAT1 and STAT3 activation by a SOCS2-dependent mechanism, thereby suppressing the tolerogenic dendritic cell phenotype...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28431894/molecular-cloning-and-functional-characterization-of-duck-nucleotide-binding-oligomerization-domain-1-nod1
#3
Huilin Li, Hui Jin, Yaqian Li, Dejian Liu, Mohamed Frahat Foda, Yunbo Jiang, Rui Luo
Nucleotide-binding oligomerization domain 1 (NOD1) is an imperative cytoplasmic pattern recognition receptor (PRR) and considered as a key member of the NOD-like receptor (NLR) family which plays a critical role in innate immunity through sensing microbial components derived from bacterial peptidoglycan. In the current study, the full-length of duck NOD1 (duNOD1) cDNA from duck embryo fibroblasts (DEFs) was cloned. Multiple sequence alignment and phylogenetic analysis demonstrated that duNOD1 exhibited a strong evolutionary relationship with chicken and rock pigeon NOD1...
April 18, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28425217/the-release-of-pro-inflammatory-cytokines-is-mediated-via-map-kinases-rather-than-inflammasome-signaling-pathway-in-keratinocytes
#4
Thomas Ondet, Béatrice Muscatelli-Groux, Cédric Coulouarn, Sacha Robert, Thomas Gicquel, Aude Bodin, Vincent Lagente, Jean-Alexis Grimaud
Toll like receptors (TLRs) are expressed in the skin and airway epithelial tissues, which are the most important sites of host-pathogen interactions. TLRs recognize the three-dimensional structure of pathogen associated molecules and are thus useful markers of the innate immune response. Here, we investigated the role of lipopolysaccharides (LPS) and monosodium urate (MSU) crystals in the activation of the TLR and Nod Like Receptors (NLR) pathways in human keratinocytes. Analysis of the inflammasome compounds revealed that NLRP3 and TLR4, both of which are components of inflammasome complexes involved in the activation of IL-1β, were not expressed in keratinocytes...
April 20, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28406433/diversity-of-amyloid-motifs-in-nlr-signaling-in-fungi
#5
REVIEW
Antoine Loquet, Sven J Saupe
Amyloid folds not only represent the underlying cause of a large class of human diseases but also display a variety of functional roles both in prokaryote and eukaryote organisms. Among these roles is a recently-described activity in signal transduction cascades functioning in host defense and programmed cell death and involving Nod-like receptors (NLRs). In different fungal species, prion amyloid folds convey activation signals from a receptor protein to an effector domain by an amyloid templating and propagation mechanism...
April 13, 2017: Biomolecules
https://www.readbyqxmd.com/read/28406147/transcriptome-analyses-of-differential-gene-expression-in-the-bursa-of-fabricius-between-silky-fowl-and-white-leghorn
#6
Deping Han, Yuanyuan Zhang, Jianfei Chen, Guoying Hua, Junying Li, Xuegong Deng, Xuemei Deng
Hyperpigmentation in Silky Fowl (SF) results in aberrant immune cell development. However, how melanocytes regulate B-cell proliferation in the bursa of Fabricius (BF) is unclear. To resolve this conundrum, we collected BFs from three-week-old SF and White Leghorn (WL) female chickens for RNA sequencing. The BF development was relatively weaker in SF than in WL. The transcriptome analyses identified 4848 differentially expressed genes, 326 long noncoding RNAs (lncRNAs), and 67 microRNAs in the BF of SF. The genes associated with melanogenesis was significantly higher, but that of the genes associated with the cytokine-cytokine receptor interactions and JAK-STAT signalling pathway was significantly lower in SF than in WL...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28404641/nlrp3-inflammasome-as-a-novel-target-for-docosahexaenoic-acid-metabolites-to-abrogate-glomerular-injury
#7
Guangbi Li, Zhida Chen, Owais M Bhat, Qinghua Zhang, Justine M Abais-Battad, Sabena M Conley, Joseph K Ritter, Pin-Lan Li
The NOD-like receptor containing pyrin domain 3 (NLRP3) inflammasome has been implicated in podocyte injury and glomerular sclerosis during hyperhomocysteinemia (hHcys). However, it remains unclear whether NLRP3 inflammasome can be a therapeutic target for treatment of hHcys-induced kidney injury. Given that docosahexaenoic acid (DHA) metabolites-resolvins have potent anti-inflammatory effects, the present study tested whether the prototype resolvin D1 (RvD1) and 17S-hydroxy DHA (17S-HDHA), an intermediate product abrogate hHcys-induced podocyte injury by targeting the NLRP3 inflammasome...
April 12, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28403789/metaflammation-tissue-specific-alterations-of-the-nlrp3-inflammasome-platform
#8
Raffaella Mastrocola, Manuela Aragno, Giuseppe Alloatti, Massimo Collino, Claudia Penna, Pasquale Pagliaro
In the last decades, the extension of life expectancy and the increased consumption of foods rich in saturated fats and added sugars have exposed the general population to emerging health problems. The prevalence of metabolic syndrome (MS), composed of a cluster of factors as obesity, dyslipidemia, hyperglycemia, and hypertension, is rapidly increasing in industrialized and developing countries leading to precocious onset of age-related diseases. Indeed, oxidative stress, accumulation of advanced glycation endproducts, and a chronic low-grade inflammation are common features of MS and physiological ageing...
April 7, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28397070/ketone-bodies-as-anti-seizure-agents
#9
Timothy A Simeone, Kristina A Simeone, Jong M Rho
There is growing evidence that ketone bodies (KB)-derived from fatty acid oxidation and produced during fasting or consumption of high-fat diets-can exert broad neuroprotective effects. With respect to epilepsy, KB (such as β-hydroxybutyrate or BHB, acetoacetate and acetone) have been shown to block acutely induced and spontaneous recurrent seizures in various animal models. Although the mechanisms underlying the anti-seizure effects of KB have not been fully elucidated, recent experimental studies have invoked ketone-mediated effects on both inhibitory (e...
April 10, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28376889/grape-seed-derived-procyanidins-alleviate-gout-pain-via-nlrp3-inflammasome-suppression
#10
Hai-Jiao Liu, Xiu-Xiu Pan, Bing-Qian Liu, Xuan Gui, Liang Hu, Chun-Yi Jiang, Yuan Han, Yi-Xin Fan, Yu-Lin Tang, Wen-Tao Liu
BACKGROUND: Gout is one of the common inflammatory arthritis which affects many people for inflicting unbearable pain. Macrophage-mediated inflammation plays an important role in gout. The uptake of monosodium urate (MSU) crystals by macrophages can lead to activation of NOD-like receptors containing a PYD 3 (NLRP3) inflammasome, thus accelerating interleukin (IL)-1β production. Reactive oxygen species (ROS) promoted development of the inflammatory process through NLRP3 inflammasome...
April 4, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28356568/negative-regulators-and-their-mechanisms-in-nlrp3-inflammasome-activation-and-signalling
#11
REVIEW
Jin Kyung Kim, Hyo Sun Jin, Hyun-Woo Suh, Eun-Kyeong Jo
Inflammasomes are cytosolic multiprotein complexes that cause the release of biologically active IL-1β. The best-characterized inflammasome is the NLRP3 (nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3 or Nod-like receptor protein 3) inflammasome. The NLRP3 inflammasome forms an assembly consisting of the ASC (apoptosis-associated speck-like protein containing a C-terminal caspase recruitment domain [CARD]) adaptor protein and the effector, caspase-1 (cysteine-dependent aspartate-directed protease-1)...
March 30, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28348460/epac1-blocks-nlrp3-inflammasome-to-reduce-il-1%C3%AE-in-retinal-endothelial-cells-and-mouse-retinal-vasculature
#12
Youde Jiang, Li Liu, Elizabeth Curtiss, Jena J Steinle
Inflammation is an important component of diabetic retinal damage. We previously reported that a novel β-adrenergic receptor agonist, Compound 49b, reduced Toll-like receptor 4 (TLR4) signaling in retinal endothelial cells (REC) grown in high glucose. Others reported that TLR4 activates high-mobility group box 1 (HMGB1), which has been associated with the NOD-like receptor 3 (NLRP3) inflammasome. Thus, we hypothesized that Epac1, a downstream mediator of β-adrenergic receptors, would block TLR4/HMGB1-mediated stimulation of the NLRP3 inflammasome, leading to reduced cleavage of caspase-1 and interleukin-1 beta (IL-1β)...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28343581/proteomic-analysis-of-physiological-function-response-to-hot-summer-in-liver-from-lactating-dairy-cows
#13
Qiangjun Wang, Xiaowei Zhao, Zijun Zhang, Huiling Zhao, Dongwei Huang, Guanglong Cheng, Yongxin Yang
Lactation performance of dairy cattle is susceptible to heat stress. The liver is one of the most crucial organs affected by high temperature in dairy cows. However, the physiological adaption by the liver to hot summer conditions has not been well elucidated in lactating dairy cows. In the present study, proteomic analysis of the liver in dairy cows in spring and hot summer was performed using a label-free method. In total, 127 differentially expressed proteins were identified; most of the upregulated proteins were involved in protein metabolic processes and responses to stimuli, whereas most of the downregulated proteins were related to oxidation-reduction...
April 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28341862/follistatin-like-1-aggravates-silica-induced-mouse-lung-injury
#14
Yinshan Fang, Si Zhang, Xiaohe Li, Fangxin Jiang, Qiao Ye, Wen Ning
Occupational inhalation of dust, such as crystalline silica, for prolonged periods in the workplace leads to fibrotic lung diseases worldwide. The mechanisms underlying the diseases are unknown, so that no effective treatment exists for these conditions. We found elevated levels of follistatin like 1 (FSTL1) in serum from patients with silicosis and in lungs from silica-induced mouse model. The induced Fstl1 regulated inflammation response via activation of nod-like receptor family, pyrin domain containing 3v (NLRP3) inflammasome-mediated IL-1β production from macrophages...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28334203/innate-immune-recognition-and-inflammation-in-neisseria-meningitidis-infection
#15
Kay Johswich
Neisseria meningitidis (Nme) can cause meningitis and sepsis, diseases which are characterised by an overwhelming inflammatory response. Inflammation is triggered by host pattern recognition receptors (PRRs) which are activated by pathogen-associated molecular patterns (PAMPs). Nme contains multiple PAMPs including lipooligosaccharide, peptidoglycan, proteins and metabolites. Various classes of PRRs including Toll-like receptors, NOD-like receptors, C-type lectins, scavenger receptors, pentraxins and others are expressed by the host to respond to any given microbe...
March 1, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28326454/quercetin-and-ascorbic-acid-suppress-fructose-induced-nlrp3-inflammasome-activation-by-blocking-intracellular-shuttling-of-txnip-in-human-macrophage-cell-lines
#16
Jung-Yoon Choe, Seong-Kyu Kim
The aim of this study was to identify the role of thioredoxin-interacting protein (TXNIP) and its interaction with antioxidants in the activation of the fructose-induced NOD-like receptor protein 3 (NLRP3) inflammasome in human macrophages. The study was performed with U937 and THP-1 macrophage cell lines. Total reactive oxygen species (ROS) were measured by flow cytometry. Interleukin-1β (IL-1β), IL-18, NLRP3, TXNIP, and caspase-1 protein expression was detected using western blotting. Quantitative real-time polymerase chain reaction was used to detect IL-1β, IL-18, and caspase-1 gene expression...
March 22, 2017: Inflammation
https://www.readbyqxmd.com/read/28326085/dectin-1-compromises-innate-responses-and-host-resistance-against-neospora-caninum-infection
#17
Murilo Vieira da Silva, Flávia Batista Ferreira França, Caroline Martins Mota, Arlindo Gomes de Macedo Júnior, Eliézer Lucas Pires Ramos, Fernanda Maria Santiago, José Roberto Mineo, Tiago Wilson Patriarca Mineo
Neospora caninum is an intracellular protozoan parasite that has drawn increasing interest due to its association with worldwide repetitive bovine abortions, which cause billionaire losses to the meat and dairy industries annually. Innate immunity plays an important role in infection control, and N. caninum activates the production of inflammatory mediators through toll-like receptors, NOD-like receptors, and mitogen-activated protein kinase signaling pathways. Advances in the knowledge of initial host-parasite interactions are desirable for the design of control measures against the infection, obliterating its pathogenesis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28322865/palmitic-acid-elicits-hepatic-stellate-cell-activation-through-inflammasomes-and-hedgehog-signaling
#18
Na-Na Duan, Xue-Jing Liu, Jian Wu
AIMS: Activation of hepatic stellate cells (HSCs) plays a pivotal role at the center of the fibrogenic progression in nonalcoholic steatohepatitis (NASH). However, it is poorly understood that how various molecules interact within HSCs during the progression of NASH to fibrosis. The aim of the present study is to delineate how inflammasome molecules, hedgehog signaling and autophagy provoke HSC activation using palmitic acid (PA) as a major insult. MAIN METHODS: Inflammasome activation, hedgehog signaling activity and autophagy in PA-exposed HSCs were determined to investigate their role in activation of human and rodent HSC lines or primary HSCs...
May 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28320097/asiatic-acid-ameliorates-pulmonary-fibrosis-induced-by-bleomycin-blm-via-suppressing-pro-fibrotic-and-inflammatory-signaling-pathways
#19
Shu-Hong Dong, Yan-Wei Liu, Feng Wei, Hui-Zhen Tan, Zhi-Dong Han
Idiopathic pulmonary fibrosis is known as a life-threatening disease with high mortality and limited therapeutic strategies. In addition, the molecular mechanism by which pulmonary fibrosis developed is not fully understood. Asiatic acid (AA) is a triterpenoid, isolated from Centella asiatica, exhibiting efficient anti-inflammatory and anti-oxidative activities. In our study, we attempted to explore the effect of Asiatic acid on bleomycin (BLM)-induced pulmonary fibrosis in mice. The findings indicated that pre-treatment with Asiatic acid inhibited BLM-induced lung injury and fibrosis progression in mice...
March 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28298903/apoptosis-toll-like-rig-i-like-and-nod-like-receptors-are-pathways-jointly-induced-by-diverse-respiratory-bacterial-and-viral-pathogens
#20
Isidoro Martínez, Juan C Oliveros, Isabel Cuesta, Jorge de la Barrera, Vicente Ausina, Cristina Casals, Alba de Lorenzo, Ernesto García, Belén García-Fojeda, Junkal Garmendia, Mar González-Nicolau, Alicia Lacoma, Margarita Menéndez, David Moranta, Amelia Nieto, Juan Ortín, Alicia Pérez-González, Cristina Prat, Elisa Ramos-Sevillano, Verónica Regueiro, Ariel Rodriguez-Frandsen, Dolores Solís, José Yuste, José A Bengoechea, José A Melero
Lower respiratory tract infections are among the top five leading causes of human death. Fighting these infections is therefore a world health priority. Searching for induced alterations in host gene expression shared by several relevant respiratory pathogens represents an alternative to identify new targets for wide-range host-oriented therapeutics. With this aim, alveolar macrophages were independently infected with three unrelated bacterial (Streptococcus pneumoniae, Klebsiella pneumoniae, and Staphylococcus aureus) and two dissimilar viral (respiratory syncytial virus and influenza A virus) respiratory pathogens, all of them highly relevant for human health...
2017: Frontiers in Microbiology
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