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https://www.readbyqxmd.com/read/28695629/caspase-11-non-canonical-inflammasome-a-critical-sensor-of-intracellular-lps-in-macrophage-mediated-inflammatory-responses
#1
REVIEW
Young-Su Yi
Inflammatory responses mediated by macrophages are part of the innate immune system, whose role is to protect against invading pathogens. Lipopolysaccharide (LPS) found in the outer membrane of Gram-negative bacteria stimulate an inflammatory response by macrophages. During the inflammatory response, extracellular LPS are recognized by Toll-like receptor 4 (TLR4), one of the pattern recognition receptors (PRRs) that activates inflammatory signaling pathways and leads to the production of inflammatory mediators...
July 10, 2017: Immunology
https://www.readbyqxmd.com/read/28694795/modulation-of-host-mirnas-transcriptome-in-lung-and-spleen-of-peste-des-petits-ruminants-virus-infected-sheep-and-goats
#2
Aruna Pandey, Amit R Sahu, Sajad A Wani, Shikha Saxena, Sonam Kanchan, Vaishali Sah, Kaushal K Rajak, Alok Khanduri, Aditya P Sahoo, Ashok K Tiwari, Bina Mishra, D Muthuchelvan, Bishnu P Mishra, Raj K Singh, Ravi K Gandham
Peste des petits ruminants (PPR) is one of the highly contagious viral disease, characterized by fever, sore mouth, conjunctivitis, gastroenteritis, and pneumonia, primarily affecting sheep and goats. Reports suggested variable host response in goats and sheep and this host response vis-a-vis the expression of microRNAs (miRNAs) has not been investigated. Here, miRNAs were sequenced and proteomics data were generated to identify the role of differentially expressed miRNA (DEmiRNA) in PPR virus (PPRV) infected lung and spleen tissues of sheep and goats...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28692144/toll-like-receptor-1-and-10-gene-polymorphisms-are-linked-to-post-bronchiolitis-asthma-in-adolescence
#3
Sari Törmänen, Matti Korppi, Eero Lauhkonen, Petri Koponen, Johanna Teräsjärvi, Juho Vuononvirta, Merja Helminen, Qiushui He, Kirsi Nuolivirta
AIM: Toll-like receptors (TLR) are innate immunity molecules and our previous studies found that TLR1 gene polymorphism was associated with post-bronchiolitis asthma at 1-6 years of age, as was TLR10 at 5-7 years of age. This study examined any associations at 11-13 years of age. METHODS: This prospective follow-up study was part of an on-going evaluation of children admitted to Tampere University Hospital Finland for bronchiolitis in 2001-2004 at less than six months of age...
July 10, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28625263/-bacterial-endotoxin-induced-endothelial-cell-injury-and-calcium-overload-associated-with-toll-like-receptor-and-calcium-signal
#4
Jianguo Xiao, Qing Song, Tanshi Li, Rongju Sun
OBJECTIVE: To explore the effect of toll-like receptor 4 (TLR4), myeloid differentiation protein-2 (MD2), and stromal interaction molecular 1 (STIM1) for regulating human vascular endothelial calcium overload injury and inflammatory reaction induced by bacterial endotoxin (LPS). METHODS: Human umbilical vein endothelial cells (HUVECs) were cultured in Dulbecco's modification of Eagle's medium (DMEM). (1) The levels of TLR4, MD2 and nuclear factor-κB (NF-κB) were detected by reverse transcriotion-polymerase chain reaction (RT-PCR) before and 0...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28619981/ibrutinib-unmasks-critical-role-of-bruton-tyrosine-kinase-in-primary-cns-lymphoma
#5
Christian Grommes, Alessandro Pastore, Nicolaos Palaskas, Sarah S Tang, Carl Campos, Derrek Schartz, Paolo Codega, Donna Nichol, Owen Clark, Wan-Ying Hsieh, Daniel Rohle, Marc K Rosenblum, Agnes Viale, Viviane Tabar, Cameron W Brennan, Igor T Gavrilovic, Thomas J Kaley, Craig Nolan, Antonio M P Omuro, Elena Pentsova, Alissa A Thomas, Elina Tsyvkin, Ariela Noy, M Lia Palomba, Paul A Hamlin, Craig Sauter, Craig H Moskowitz, Julia Wolfe, Ahmet Dogan, Minhee Won, Jon Glass, Scott Peak, Enrico C Lallana, Vaios Hatzoglou, Anne S Reiner, Philip Gutin, Jason T Huse, Katherine Panageas, Thomas G Graeber, Nikolaus Schultz, Lisa M DeAngelis, Ingo K Mellinghoff
Bruton tyrosine kinase (BTK) links the B-cell antigen receptor (BCR) and Toll-like receptors with Nuclear factor kappa B (NF-κB). The role of BTK in primary CNS lymphoma (PCNSL) is unknown. We performed a Phase 1 clinical trial with ibrutinib, the first-in-class BTK inhibitor, for patients with relapsed or refractory CNS Lymphoma. Clinical responses to ibrutinib occurred in 10/13 (77%) PCNSL patients, including five complete responses. The only PCNSL with complete ibrutinib resistance harbored a mutation within the coiled-coil domain of Caspase Recruitment Domain Family Member 11, a known ibrutinib resistance mechanism...
June 15, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28592245/in-silico-identification-of-potential-key-regulatory-factors-in-smoking-induced-lung-cancer
#6
Salem A El-Aarag, Amal Mahmoud, Medhat H Hashem, Hatem Abd Elkader, Alaa E Hemeida, Mahmoud ElHefnawi
BACKGROUND: Lung cancer is a leading cause of cancer-related death worldwide and is the most commonly diagnosed cancer. Like other cancers, it is a complex and highly heterogeneous disease involving multiple signaling pathways. Identifying potential therapeutic targets is critical for the development of effective treatment strategies. METHODS: We used a systems biology approach to identify potential key regulatory factors in smoking-induced lung cancer. We first identified genes that were differentially expressed between smokers with normal lungs and those with cancerous lungs, then integrated these differentially expressed genes (DEGs) with data from a protein-protein interaction database to build a network model with functional modules for pathway analysis...
June 7, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/28560381/hypomethylation-of-the-toll-like-receptor-2-gene-increases-the-risk-of-essential-hypertension
#7
Shuqi Mao, Tianlun Gu, Fade Zhong, Rui Fan, Fubao Zhu, Peipei Ren, Fengying Yin, Lina Zhang
Studies on the etiology of essential hypertension (EH) have demonstrated that chronic inflammation contributes to the onset and development of elevated blood pressure. Toll‑like receptors (TLRs), important immune receptors, serve a role in chronic inflammation and are associated with EH. In the present study, 96 patients with EH, and 96 age‑ and sex‑matched healthy controls were recruited, and eight cytosine‑phosphate‑guanine (CpG) dinucleotides (CpG1‑8) were analyzed using bisulfite pyrosequencing technology...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28559111/pattern-recognition-receptors-in-grass-carp-ctenopharyngodon-idella-i-organization-and-expression-analysis-of-tlrs-and-rlrs
#8
Zhiwei Liao, Quanyuan Wan, Hang Su, Changsong Wu, Jianguo Su
Pattern recognition receptors (PRRs) play indispensable roles in the immune responses against invading pathogens. In the present study, we systematically identified and characterized Toll-like receptors (TLRs), retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs) as well as their adaptors in grass carp (Ctenopharyngodon idella). A comprehensive analysis of BLAST and other bioinformatics methods showed that C. idella TLR family consist of 21 members and their adaptors contain four members. Phylogenetic analyses confirmed the existence of six TLR subfamilies (TLR1, 3, 4, 5, 7 and 11 subfamily) in C...
May 27, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28530841/the-increased-expression-of-toll-like-receptor-4-in-renal-and-skin-lesions-in-lupus-erythematosus
#9
Nesrine Elloumi, Raouia Fakhfakh, Lobna Ayadi, Khadija Sellami, Olfa Abida, Mariem Ben Jmaa, Tahya Sellami, Khawla Kammoun, Hatem Masmoudi
Toll-like receptor 4 (TLR-4), a bacterial lipopolysaccharide sensor, is an innate immunity essential modulator. It is expressed on both immune and non-immune cells and may contribute to the cutaneous and renal manifestations during lupus erythematosus (LE). Our purpose is to evaluate TLR-4 expression and analyzing its role in lupus nephritis (LN) and chronic cutaneous lupus erythematosus (CLE) pathogenesis. TLR-4 immunohistochemical staining was performed on 30 LN renal biopsies compared with 11 healthy renal tissues and 30 skin biopsies from CLE patients compared with 15 normal individuals...
July 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28521851/regulation-of-interleukin-11-expression-in-ovulatory-follicles-of-the-rat-ovary
#10
You-Jee Jang, You-Jee Jang, Jae-Il Park, Jae-Il Park, Seong-Eun Jeong, Seong-Eun Jeong, You-Mi Seo, You-Mi Seo, Phuong T M Dam, Phuong T M Dam, Young-Woo Seo, Young-Woo Seo, Bum-Chae Choi, Bum-Chae Choi, Sang-Jin Song, Sang-Jin Song, Sang-Young Chun, Sang-Young Chun, Moon-Kyoung Cho, Moon-Kyoung Cho
The aim of the present study was to examine the regulation of interleukin (IL)-11 expression, as well as the role of IL-11, during ovulation in gonadotropin-primed immature rats. Injection of equine chorionic gonadotropin (eCG), followed by human CG (hCG) to induce superovulation stimulated expression of the Il11 gene in theca cells within 6h, as revealed by northern blot and in situ hybridisation analyses. Real-time reverse transcription-polymerase chain reaction analysis showed that the IL-11 receptor, α subunit gene was expressed in granulosa and theca cells and that injection of hCG had no effect on its expression...
May 19, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28501402/thiamine-supplementation-facilitates-thiamine-transporter-expression-in-the-rumen-epithelium-and-attenuates-high-grain-induced-inflammation-in-low-yielding-dairy-cows
#11
X H Pan, L Yang, Y Beckers, F G Xue, Z W Tang, L S Jiang, B H Xiong
An experiment was conducted to uncover the effects of increasing dietary grain levels on expression of thiamine transporters in ruminal epithelium, and to assess the protective effects of thiamine against high-grain-induced inflammation in dairy cows. Six rumen-fistulated, lactating Holstein dairy cows (627 ± 16.9 kg of body weight, 180 ± 6 d in milk; mean ± standard deviation) were randomly assigned to a replicated 3 × 3 Latin square design trial. Three treatments were control (20% dietary starch, dry matter basis), high-grain diet (HG, 33...
July 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28486793/inflammatory-bowel-disease-updates-on-molecular-targets-for-biologics
#12
REVIEW
Konstantinos H Katsanos, Konstantinos A Papadakis
Therapy for inflammatory bowel disease (IBD) has changed, with several new agents being evaluated. The era of anti-tumor necrosis factor (anti-TNF) antibody therapy saw remarkable progress in IBD therapy. Some patients, however, do not respond to anti-TNF treatment, or their response decreases over time. This phenomenon highlights the need to identify new molecular targets for therapy in IBD. The targets of new therapeutic molecules in IBD must aim to restore immune dysregulation by the inhibition of proinflammatory cytokines (TNF-α, interleukin [IL]-6, IL-13, IL-17, IL-18, and IL-21) and augmentation of the effect of anti-inflammatory cytokines (IL-10, IL-11, and transforming growth factor β) and to pursue new anti-inflammatory targets, such as regulatory T-cell therapy, Smad7 antisense, Janus-activated kinase inhibition, Toll-like receptor stimulation, leukocyte adhesion, and blockade of T-cell homing via integrins and mucosal addressin cellular adhesion molecule-1...
July 15, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28469145/investigation-of-cationicity-and-structure-of-pseudin-2-analogues-for-enhanced-bacterial-selectivity-and-anti-inflammatory-activity
#13
Dasom Jeon, Min-Cheol Jeong, Binu Jacob, Jeong Kyu Bang, Eun-Hee Kim, Chaejoon Cheong, In Duk Jung, Yoonkyung Park, Yangmee Kim
Pseudin-2 (Ps), isolated from the frog Pseudis paradoxa, exhibits potent antibacterial activity and cytotoxicity. To develop antimicrobial peptides with anti-inflammatory activity and low cytotoxicity, we designed Ps analogues with Lys substitutions, resulting in elevated amphipathic α-helical structure and cationicity. We further substituted Gly(11) with Pro (Ps-P analogues) to increase bacterial cell selectivity. Ps analogues retained antimicrobial activity and exhibited reduced cytotoxicity, whereas Ps-P analogues exhibited lower cytotoxicity and antimicrobial activity...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28428828/bioinformatics-analysis-of-key-genes-and-latent-pathway-interactions-based-on-the-anaplastic-thyroid-carcinoma-gene-expression-profile
#14
Yun Huang, Yiming Tao, Xinying Li, Shi Chang, Bo Jiang, Feng Li, Zhi-Ming Wang
Anaplastic thyroid carcinoma (ATC) is an aggressive malignant disease in older adults with a high mortality rate. The present study aimed to examine several key genes and pathways, which are associated with ATC. The GSE33630 gene expression profile was downloaded from the Gene Expression Omnibus database, which included 11 ATC and 45 normal thyroid samples. The differentially expressed genes (DEGs) in ATC were identified using the Limma package in R. The Gene Ontology functions and Kyoto Encyclopedia of Genes and Genomes pathways of the selected DEGs were enriched using the Database for Annotation, Visualization and Integrated Discovery...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28385921/the-effects-of-physical-exercise-on-non-motor-symptoms-and-on-neuroimmune-rage-network-in-experimental-parkinsonism
#15
Sofia D Viana, Inês R Pita, Cristina Lemos, Daniel Rial, Patrícia Couceiro, Paulo Rodrigues-Santos, Francisco Caramelo, Félix Carvalho, Syed F Ali, Rui D Prediger, Carlos A Fontes Ribeiro, Frederico C Pereira
Parkinson's disease (PD) prodromic stages comprise neuropsychiatric perturbations that critically compromise patient's quality of life. These non-motor symptoms (NMS) are associated with exacerbated innate immunity, a hallmark of overt PD. Physical exercise (PE) has the potential to improve neuropsychiatric deficits and to modulate immune network including receptors for advanced glycation endproducts (RAGE) and Toll-like receptors (TLRs) in distinct pathological settings. Accordingly, the present study aimed to test the hypothesis that PE i) alleviates PD NMS and ii) modulates neuroimmune RAGE-network in experimental PD...
April 6, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28384159/3lps-binding-protein-and-its-interactions-with-p-gingivalis-lps-modulate-pro-inflammatory-response-and-toll-like-receptor-signaling-in-human-oral-keratinocytes
#16
Pei-Hui Ding, Richard P Darveau, Cun-Yu Wang, Lijian Jin
Lipopolysaccharide (LPS)-binding protein (LBP) as an acute-phase protein plays a crucial role in innate host response to bacterial challenge. Our previous study shows that LBP expression in human gingiva is associated with periodontal status. Porphyromonas gingivalis is a keystone periodontopathogen, and its LPS with lipid A structural heterogeneity critically accounts for periodontal pathogenesis. This study investigated the effects of LBP and its interactions with two featured isoforms of P. gingivalis LPS (tetra-acylated LPS1435/1449 and penta-acylated LPS1690) on the expression of pro-inflammatory cytokines in human oral keratinocytes (HOKs), and the involvement of Toll-like receptor (TLR) signaling...
2017: PloS One
https://www.readbyqxmd.com/read/28366783/intestinal-immune-responses-of-jian-carp-against-aeromonas-hydrophila-depressed-by-choline-deficiency-varied-change-patterns-of-mrna-levels-of-cytokines-tight-junction-proteins-and-related-signaling-molecules-among-three-intestinal-segments
#17
Pei Wu, Yang Liu, Wei-Dan Jiang, Jun Jiang, Yong-An Zhang, Xiao-Qiu Zhou, Lin Feng
This study aimed to investigate the effects of choline deficiency on intestinal inflammation of fish after Aeromonas hydrophila infection and the potential molecular mechanisms. Juvenile Jian carp (Cyprinus carpio var. Jian) were fed two diets containing choline at 165 (deficient group) and 607 mg/kg diet respectively for 65 days. Choline deficiency decreased intestinal lysozyme activity, C3 and IgM contents, increased acid phosphatase activity, downregulated mRNA levels of antimicrobial peptides [liver-expressed antimicrobial peptide (LEAP) 2A, LEAP-2B, hepcidin and defensin], cytokines [interleukin (IL) 6a, tumor necrosis factor α (TNF-α), interferon γ2b (IFN-γ2b), IL-6b and transforming growth factor β2 (TGF-β2) only in proximal intestine, IL-10 in mid and distal intestine], immune-related signaling molecules [Toll-like receptor 4 (TLR4), myeloid differentiation primary response 88 (MyD88), nuclear factor kappa B (NF-κB), inhibitor of NF-κB (IκB), Janus kinase 3 (JAK3), and signal transducers and activators of transcription 5 (STAT5)], tight junction proteins (claudin 3b, claudin 3c, claudin 11 and occludin), and mitogen-activated protein kinases p38 (p38(MAPK)) in proximal and distal intestine of juvenile Jian carp after A...
March 30, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28323577/mitigation-of-radiation-induced-epithelial-damage-by-the-tlr5-agonist-entolimod-in-a-mouse-model-of-fractionated-head-and-neck-irradiation
#18
Ilia A Toshkov, Anatoli S Gleiberman, Vadim L Mett, Alan D Hutson, Anurag K Singh, Andrei V Gudkov, Lyudmila G Burdelya
Radiation treatment of head and neck cancer frequently causes severe collateral damage to normal tissues including mouth mucosa, salivary glands and skin. This toxicity limits the radiation dose that can be delivered and affects the patient's quality of life. Previous studies in mice and nonhuman primates showed that entolimod, a toll-like receptor 5 (TLR5) agonist derived from bacterial flagellin, effectively reduced radiation damage to hematopoietic and gastrointestinal tissues in both total-body and local irradiation scenarios, with no protection of tumors...
May 2017: Radiation Research
https://www.readbyqxmd.com/read/28321710/association-between-tlr9-rs5743836-polymorphism-and-risk-of-recurrent-venous-thromboembolism
#19
Abrar Ahmad, Kristina Sundquist, Bengt Zöller, Peter J Svensson, Jan Sundquist, Ashfaque A Memon
Recent gene knockout studies on mice have shown the role of toll-like receptor 9 (TLR9) in resolution of venous thromboembolism (VTE) through sterile inflammation. However, the role of a putative functional TLR9 polymorphism (rs5743836) in risk assessment of VTE recurrence remains unknown. The aim of our study was to investigate the TLR9 rs5743836 polymorphism in VTE patients and its association with the risk of VTE recurrence. We analyzed TLR9 rs5743836 polymorphism in Malmö thrombophilia study patients; a prospective follow-up study of 1465 VTE patients by Taqman PCR...
July 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28316179/-effects-and-related-mechanism-of-angiotensin-1-7-on-toll-like-receptor-4-mediated-oxidative-stress-in-human-umbilical-vein-endothelial-cells
#20
W F Yan, J J Xue, H Y Yang, B Liang, Z M Yang
Objective: To explore the role and related mechanisms of angiotensin-(1-7)(Ang-(1-7)) on Toll-like receptor 4 (TLR4) mediated oxidized low-density lipoprotein(ox-LDL)-induced oxidative stress in human umbilical vein endothelial cells (HUVECs). Methods: HUVECs were cultured in vitro and divided into six groups: the control group (normal medium), the ox-LDL group(treated with 75 mg/L ox-LDL), the ox-LDL+ Ang-(1-7) group (1 μmol/L Ang-(1-7) pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL), the ox-LDL+ Ang-(1-7)+ A-779 group(1 μmol/L A-779 (Mas receptor) pretreated for 30 minutes, 1 μmol/L Ang-(1-7) pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL), the ox-LDL+ A-779 group (1 μmol/L A-779 pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL), the ox-LDL+ HTA125 group (10 μg/L HTA125 (TLR4-blocking antibody) pretreated for 30 minutes, then intervened with 75 mg/L ox-LDL )...
March 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
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