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toll like receptor 12

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https://www.readbyqxmd.com/read/28526573/transcriptomic-variation-of-locally-infected-skin-of-epinephelus-coioides-reveals-the-mucosal-immune-mechanism-against-cryptocaryon-irritans
#1
Yazhou Hu, Anxing Li, Yang Xu, Biao Jiang, Geling Lu, Xiaochun Luo
Fish skin is the largest immunologically active mucosal organ, providing first-line defense against external pathogens. However, the skin-associated immune mechanisms of fish are still unclear. Cryptocaryon irritans is an obligate ectoparasitic ciliated protozoan that infects almost all marine fish, and is believed to be an excellent pathogen model to study fish mucosal immunity. In this study, a de novo transcriptome assembly of Epinephelus coioides skin post C. irritans tail-infection was performed for the first time using the Illumina HiSeq™ 2500 system...
May 16, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28507179/elevated-expression-of-the-nlrp3-inflammasome-and-its-correlation-with-disease-activity-in-adult-onset-still-disease
#2
Chia-Wei Hsieh, Yi-Ming Chen, Chi-Chen Lin, Kuo-Tung Tang, Hsin-Hua Chen, Wei-Ting Hung, Kuo-Lung Lai, Der-Yuan Chen
OBJECTIVE: The dysregulation of the NLRP3 (NLR containing a pyrin domain) inflammasome is involved in autoinflammatory diseases. Adult-onset Still disease (AOSD) is regarded as an autoinflammatory disease. However, the pathogenic involvement of NLRP3 inflammasome in AOSD remains unclear and NLRP3 activators in AOSD are currently unknown. METHODS: The mRNA expression of NLRP3 inflammasome signaling in peripheral blood mononuclear cells (PBMC) from 34 patients with AOSD and 14 healthy subjects was determined using quantitative-PCR (qPCR)...
May 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28502294/-resiquimod-r848-has-more-stronger-immune-adjuvantivity-than-other-tested-tlr-agonists
#3
Yuan Shen, Menghua Zeng, Feng Qiu, Hua Tang
Objective To compare and characterize the Th1 immune responses induced by the most commonly used commercial Toll-like receptor (TLR) agonists through in vivo and ex vivo experiments. Methods The concentrations of IL-12 were tested by ELISA after mouse dendritic cells (DCs) in vitro were stimulated by one of tested TLR agonists, including poly(I:C), monophosphoryl lipid A (MPLA), resiquimod (R848), cytosine polyguanine-C (CpG-C). The changes in percentage and phenotype of DCs, NK cells and effector T cells in the draining lymph nodes were analyzed by flow cytometry after BALB/c mice were immunized with ovalbumin (OVA) mixed with selected TLR agonist...
May 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28500692/toll-like-receptor-4-mediates-fat-sugar-and-umami-taste-preference-and-food-intake-and-body-weight-regulation
#4
Simonetta Camandola, Mark P Mattson
OBJECTIVE: Immune and inflammatory pathways play important roles in the pathogenesis of metabolic disorders. This study investigated the role of toll-like receptor 4 (TLR4) in orosensory detection of dietary lipids and sugars. METHODS: Taste preferences of TLR4 knockout (KO) and wild-type (WT) male mice under a standard and a high-fat, high-sugar diet were assessed with two-bottle tests. Gene expression of taste signaling molecules was analyzed in the tongue epithelium...
May 12, 2017: Obesity
https://www.readbyqxmd.com/read/28498367/initiation-and-execution-mechanisms-of-necroptosis-an-overview
#5
REVIEW
Sasker Grootjans, Tom Vanden Berghe, Peter Vandenabeele
Necroptosis is a form of regulated cell death, which is induced by ligand binding to TNF family death domain receptors, pattern recognizing receptors and virus sensors. The common feature of these receptor systems is the implication of proteins, which contain a receptor interaction protein kinase (RIPK) homology interaction motif (RHIM) mediating recruitment and activation of receptor-interacting protein kinase 3 (RIPK3), which ultimately activates the necroptosis executioner mixed lineage kinase domain-like (MLKL)...
May 12, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28497211/association-of-toll-like-receptor-gene-polymorphisms-and-its-interaction-with-hpv-infection-in-determining-the-susceptibility-of-cervical-cancer-in-chinese-han-population
#6
Ye Jin, Shuang Qiu, Na Shao, Jianhua Zheng
The aim of the study is to investigate the association of several single-nucleotide polymorphisms (SNPs) within Toll-like receptors (TLRs) gene and additional gene-gene and gene-human papillomavirus (HPV) infection interaction with cervical cancer risk. A total of 1262 participants are selected, including 420 cervical cancer patients and 842 control participants. Generalized multifactor dimensionality reduction (GMDR) was used to screen the best interaction combination among five SNPs within TLR gene and HPV infection...
May 11, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28489721/tear-cytokine-levels-in-contact-lens-wearers-with-acanthamoeba-keratitis
#7
Nicole Carnt, Vicente M Montanez, Grazyna Galatowicz, Neyme Veli, Virginia Calder
PURPOSE: To determine differences in key tear film cytokines between mild and severe cases of acanthamoeba keratitis (AK) and control contact lens (CL) wearers. METHODS: This was a prospective study of CL wearers with AK attending Moorfields Eye Hospital and control CL wearers from the Institute of Optometry, London. Basal tear specimens were collected by 10-μL capillary tubes (BLAUBRAND intraMark, Wertheim, Germany), and tear protein levels were measured with a multiplex magnetic bead array (Luminex 100; Luminex Corporation, Austin, TX) for cytokines interleukin (IL)-1β, IL-6, IL-8, IL-10, IL-17A, IL-17E, IL-17F, IL-22, and interferon gamma and with enzyme-linked immunosorbent assay (Abcam, Cambridge, United Kingdom) for CXCL2...
May 9, 2017: Cornea
https://www.readbyqxmd.com/read/28483250/monophosphoryl-lipid-a-enhances-nontypeable-haemophilus-influenzae-specific-mucosal-and-systemic-immune-responses-by-intranasal-immunization
#8
Taro Iwasaki, Takashi Hirano, Satoru Kodama, Yoshinori Kadowaki, Munehito Moriyama, Toshiaki Kawano, Masashi Suzuki
OBJECTIVE: Acute otitis media (AOM) is one of the most common infectious diseases in children. Nontypeable Haemophilus influenzae (NTHi) is Gram-negative bacteria that are considered major pathogens of AOM and respiratory tract infections. In this study, we used monophosphoryl lipid A (MPL), a toll-like receptor (TLR) 4 agonist, as an adjuvant to induce mucosal immune responses against NTHi to enhance bacterial clearance from the nasopharynx. METHODS: Mice were administered 10 μg outer membrane protein (OMP) from NTHi and 0, 10, or 20 μg MPL intranasally once a week for 3 weeks...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28480979/down-regulation-of-trif-tlr3-and-mavs-in-hcv-infected-liver-correlates-with-the-outcome-of-infection
#9
Premashis Kar, Deepak Kumar, Phani Kumar Gumma, Soumya Jyoti Chowdhury, Vijay Kumar Karra
AIMS: In virus-infected cells, pattern recognition receptors (PRRs) recruits their specific adaptor molecules, mitochondrial antiviral signaling protein (MAVS), TIR-domain-containing adapter-inducing interferon-β (TRIF) and TNF receptor associated factor (TRAF6) which induces interferon. Toll-like receptor 3 (TLR3) induces activation of the NF-kappa B (NF-κB) for interferon production. The study has been designed to assess the correlation of TLR3, MAVS, TRIF and TRAF6 outcome of HCV infection...
May 8, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28453702/a-phase-2-randomized-double-blind-placebo-%C3%A2-controlled-study-of-chemo-immunotherapy-combination-using-motolimod-with-pegylated-liposomal-doxorubicin-in-recurrent-or-persistent-ovarian-cancer-a-gynecologic-oncology-group-partners-study
#10
B J Monk, M F Brady, C Aghajanian, H A Lankes, T Rizack, J Leach, J M Fowler, R Higgins, P Hanjani, M Morgan, R Edwards, W Bradley, T Kolevska, P Foukas, E M Swisher, K S Anderson, R Gottardo, J K Bryan, M Newkirk, K L Manjarrez, R S Mannel, R M Hershberg, G Coukos
Background: A phase 2, randomized, placebo-controlled trial was conducted in women with recurrent epithelial ovarian carcinoma to evaluate the efficacy and safety of motolimod-a Toll-like receptor 8 (TLR8) agonist that stimulates robust innate immune responses-combined with pegylated liposomal doxorubicin (PLD), a chemotherapeutic that induces immunogenic cell death. Patients and methods: Women with ovarian, fallopian tube, or primary peritoneal carcinoma were randomized 1 : 1 to receive PLD in combination with blinded motolimod or placebo...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28447579/glucan-phosphate-inhibits-hmgb-1-release-from-rat-myocardial-h9c2-cells-in-sepsis-via-tlr4-nf-%C3%B0%C2%BAb-signal-pathway
#11
Haizhu Wang, Zhifei Cui, Fei Sun, Huayong Ding
PURPOSE: The effect of glucan phosphate (GP) on the release of HMGB-1 from rat myocardial cells (H9C2) during lipopolysaccharide-induced sepsis, and the underlying mechanisms, were investigated. METHODS: H9C2 cells were divided into three groups: normal; lipopolysaccharide (LPS) (1 mg/ml LPS); and, LPS+GP (2 mg/ml GP). Western blot was used to determine toll-like receptor 4 (TLR4) levels, and electrophoretic mobility-shift assays (EMSA) was used to determine nuclear factor-кB (NF-кB) activity 3, 6 and 9 h after treatment...
April 26, 2017: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/28446897/toll-like-receptor-4-myeloid-differentiation-primary-response-gene-88-pathway-is-involved-in-the-inflammatory-development-of-polymyositis-by-mediating-interferon-%C3%AE-and-interleukin-17a-in-humans-and-experimental-autoimmune-myositis-mouse-model
#12
Hongya Zhang, Fangyuan He, Ming Shi, Wenxiu Wang, Xiaojia Tian, Juan Kang, Wenjuan Han, Rui Wu, Linfu Zhou, Mengmeng Hu, Xiaobo Li, Fang Mi, Gang Zhao, Hongge Jia
OBJECTIVE: Toll-like receptor 4 (TLR4) is one of the key players in the development of many autoimmune diseases. To determine the possible role of TLR4 in polymyositis (PM) development, we collected muscle samples from PM patients and mice subjected to an experimental autoimmune myositis (EAM) model. METHODS: We measured TLR4-MyD88 pathway-related factors, interferon-γ (IFN-γ), and interleukin-17A (IL-17A) in EAM mice and PM patients. Then, we observed the changes of above factors and the inflammatory development of EAM mice with TLR4 antagonist TAK-242, IFN-γ, or IL-17A antibody treatment...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28438516/global-transcriptomic-profiling-of-cortex-and-striatum-cerebral-injury-after-ischemia-reperfusion-in-a-mouse-model
#13
Zhenying Zhao, Zhiqiang Lu, Xiuying Sun, Tianhong Zhao, Jihong Zhang, Cunxia Zhou, Xiaohui Zheng, Huijuan Zhang, Guiling Shi
OBJECTIVE: This study aims to investigate the molecular mechanism of injury development in the cortex and the striatum after cerebral ischemia/reperfusion (I/R). METHODS: Gene expression data (GSE23160) in the cortex and the striatum of an intraluminal middle cerebral artery occlusion-I/R mouse model (N = 12) and sham controls (N = 4) were downloaded from the Gene Expression Omnibus. Limma package was used to identify the differentially expressed genes (DEGs) between the I/R (2, 8, and 24 hours) and control groups...
April 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28418096/expression-of-toll-like-receptors-in-t-lymphocytes-stimulated-with-n-3-oxododecanoyl-l-homoserine-lactone-from-pseudomonas-aeruginosa
#14
Lei Bao, Jialin Yu, Haiying Zhong, Daochao Huang, Qi Lu
The establishment of chronic Pseudomonas aeruginosa infections is correlated with the disturbance of the host immune system. The P. aeruginosa quorum-sensing molecule N-3-(oxododecanoyl)-L-homoserine lactone (3-O-C12-HSL) has the potential to modulate the host immune system. The immune system recognizes pathogens via toll-like receptors (TLRs). We found that 3-O-C12-HSL induced TLR changes in monocytes. However, the role of T cells in P. aeruginosa infection has not been delineated. In order to understand this activity, we examined whether 3-O-C12-HSL has an effect on the immune function and the expression of TLRs in T lymphocytes...
April 18, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28413046/heat-stress-decreases-expression-of-the-cytokines-avian-%C3%AE-defensins-4-and-6-and-toll-like-receptor-2-in-broiler-chickens-infected-with-salmonella-enteritidis
#15
W M Quinteiro-Filho, A S Calefi, D S G Cruz, T P A Aloia, A Zager, C S Astolfi-Ferreira, J A Piantino Ferreira, S Sharif, J Palermo-Neto
A high ambient temperature is a highly relevant stressor in poultry production. Heat stress (HS) has been reported to reduce animal welfare, performance indices and increase Salmonella susceptibility. Salmonella spp. are major zoonotic pathogen that cause over 1 billion of human infections worldwide annually. Therefore, the current study was designed to analyze the effect of heat stress on Salmonella infection in chickens through modulation of the immune responses. Salmonella Enteritidis was inoculated via gavage at one day of age (10(6)cfu/mL)...
April 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28410380/interleukin-10-and-prostaglandin-e2-have-complementary-but-distinct-suppressive-effects-on-toll-like-receptor-mediated-dendritic-cell-activation-in-ovarian-carcinoma
#16
Eva Brencicova, Ann L Jagger, Hayley G Evans, Mirella Georgouli, Alex Laios, Steve Attard Montalto, Gautam Mehra, Jo Spencer, Ahmed A Ahmed, Shanti Raju-Kankipati, Leonie S Taams, Sandra S Diebold
Dendritic cells (DC) have the potential to instigate a tumour-specific immune response, but their ability to prime naïve lymphocytes depends on their activation status. Thus, for tumour immunotherapy to be effective, the provision of appropriate DC activation stimuli such as Toll-like receptor (TLR) agonists is crucial in order to overcome immunosuppression associated with the tumour microenvironment. To address this, we investigated how ovarian carcinoma (OC)-associated ascites impedes activation of DC by TLR agonists...
2017: PloS One
https://www.readbyqxmd.com/read/28407684/atorvastatin-inhibits-the-immediate-early-response-gene-egr1-and-improves-the-functional-profile-of-cd4-t-lymphocytes-in-acute-coronary-syndromes
#17
Anna Severino, Chiara Zara, Mara Campioni, Davide Flego, Giulia Angelini, Daniela Pedicino, Ada Francesca Giglio, Francesco Trotta, Simona Giubilato, Vincenzo Pazzano, Claudia Lucci, Antonio Iaconelli, Aureliano Ruggio, Luigi Marzio Biasucci, Filippo Crea, Giovanna Liuzzo
Background- Adaptive immune-response is associated with a worse outcome in acute coronary syndromes. Statins have anti-inflammatory activity beyond lowering lipid levels. We investigated the effects of ex-vivo and in-vivo atorvastatin treatment in acute coronary syndromes on CD4+T-cells, and the underlying molecular mechanisms.Approach and results- Blood samples were collected from 50 statin-naïve acute coronary syndrome patients. We assessed CD4+T-cell activation by flow-cytometry, the expression of 84 T-helper transcription-factors and 84 T-cell related genes by RT-qPCR, and protein expression by Western-blot, before and after 24-hours incubation with increasing doses of atorvastatin: 3-10-26 μg/ml (corresponding to blood levels achieved with doses of 10-40-80 mg, respectively)...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28406067/rna-and-a-cell-wall-component-of-enterococcus-faecalis-ic-1-are-required-for-phagocytosis-and-interleukin-12-production-by-the-mouse-macrophage-cell-line-j774-1
#18
Junpei Nakase, Yuuichi Ukawa, Syoji Takemoto, Takayoshi Kubo, Yuko M Sagesaka, Ayako Aoki-Yoshida, Mamoru Totsuka
Enterococcus faecalis is a resident lactic acid bacterium in the human intestine. Its immunostimulatory action was reported to be enhanced by heat sterilization. To investigate its beneficial actions, we evaluated the ability of 10 E. faecalis strains to induce interleukin-12 (IL-12) production in a mouse macrophage cell line, J774.1 and found that the strain, E. faecalis IC-1, had a potent IL-12-inducing ability. Furthermore, we investigated the underlying mechanism by treating IC-1 cells with RNase or lysozyme...
June 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28401934/vaginal-lactic-acid-elicits-an-anti-inflammatory-response-from-human-cervicovaginal-epithelial-cells-and-inhibits-production-of-pro-inflammatory-mediators-associated-with-hiv-acquisition
#19
A C Hearps, D Tyssen, D Srbinovski, L Bayigga, D J D Diaz, M Aldunate, R A Cone, R Gugasyan, D J Anderson, G Tachedjian
Inflammation in the female reproductive tract (FRT) is associated with increased HIV transmission. Lactobacillus spp. dominate the vaginal microbiota of many women and their presence is associated with reduced HIV acquisition. Here we demonstrate that lactic acid (LA), a major organic acid metabolite produced by lactobacilli, mediates anti-inflammatory effects on human cervicovaginal epithelial cells. Treatment of human vaginal and cervical epithelial cell lines with LA (pH 3.9) elicited significant increases in the production of the anti-inflammatory cytokine IL-1RA...
April 12, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28397719/toll-like-receptor-4-signaling-pathway-in-the-protective-effect-of-pioglitazone-on-experimental-immunoglobulin-a-nephropathy
#20
Jia-Nan Zou, Jing Xiao, Sha-Sha Hu, Chen-Sheng Fu, Xiao-Li Zhang, Zhen-Xing Zhang, Yi-Jun Lu, Wei-Jun Chen, Zhi-Bin Ye
BACKGROUND: In vitro experiments have revealed that toll-like receptor 4 (TLR4) pathway is involved in the progression of immunoglobulin A nephropathy (IgAN) by induction of proinflammatory cytokines. Evidence showed that, in other disease models, peroxisome proliferator-activated receptor-γ (PPAR-γ) agonists have been shown to exert anti-inflammatory effects through suppression of the expression and activity of TLR4. However, the interaction between PPAR-γ and TLR4 in IgAN has not been fully studied both in vitro and in vivo...
April 20, 2017: Chinese Medical Journal
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