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https://www.readbyqxmd.com/read/28099322/mitochondrial-dna-and-tlr9-signaling-is-not-involved-in-mechanical-ventilation-induced-inflammation
#1
Kim Timmermans, Matthijs Kox, Michiel Vaneker, Peter Pickkers, Gert Jan Scheffer
Exogenous administration of mitochondrial DNA (mtDNA) causes inflammatory lung injury in a toll-like receptor (TLR) 9-dependent manner. We investigated whether mechanical ventilation results in endogenous release of mtDNA and whether TLR9 plays a role in the pulmonary inflammatory response induced by mechanical ventilation.Wild-type and TLR9/ C57bl/6 mice were ventilated with low (8 mL/kg) and high (32 mL/kg) tidal volumes for 4 hours. Levels of nuclear DNA and mtDNA in bronchoalveolar lavage fluid, as well as pulmonary concentrations of keratinocyte-derived chemokine, interleukin-1β, and interleukin-6, were determined...
February 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28096963/effect-of-a-769662-a-direct-ampk-activator-on-tlr-4-expression-and-activity-in-mice-heart-tissue
#2
Maryam Rameshrad, Nasrin Maleki-Dizaji, Hamid Soraya, Negisa Seyed Toutounchi, Abolfazl Barzegari, Alireza Garjani
OBJECTIVES: TLR-4 activates a number of inflammatory signaling pathways. Also, AMPK could be involved in anti-inflammatory signaling. The aim of this study was to identify whether stimulation of AMPK could inhibit LPS-induced Tlr-4 gene expression in mice hearts. MATERIALS AND METHODS: Heart AMPK activity and/or Tlr-4 expression was stimulated in different mice groups, using respectively IP injection of A-769662 (10 mg/kg) and LPS (2 mg/kg) or a combination of both agents...
December 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28096181/long-term-8-10%C3%A2-years-outcomes-after-biodegradable-polymer-coated-biolimus-eluting-stent-implantation
#3
Masanobu Ohya, Shunsuke Kubo, Akimune Kuwayama, Katsuya Miura, Takenobu Shimada, Hidewo Amano, Yusuke Hyodo, Suguru Otsuru, Seiji Habara, Takeshi Tada, Hiroyuki Tanaka, Yasushi Fuku, Harumi Katoh, Tsuyoshi Goto, Kazushige Kadota
OBJECTIVE: Efficacy and safety data on biodegradable polymer-coated biolimus-eluting stent (BP-BES) are currently limited to 5 years. We evaluated longer term (8-10 years) clinical and angiographic outcomes after BP-BES implantation. METHODS: Between 2005 and 2008, 243 patients (301 lesions) underwent BP-BES implantation. The primary clinical outcome measure was defined as any target lesion revascularisation (TLR). Absolute serial angiographic studies without any concomitant TLR within 2 years after the procedure were performed in 55 patients (65 lesions) at postprocedure, mid-term (within 1 year), late term (between 1 and 2 years) and very late term (beyond 2 years)...
January 17, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28095323/pattern-recognitions-receptors-in-immunodeficiency-disorders
#4
Esameil Mortaz, Ian M Adcock, Payam Tabarsi, Ilad Alavi Darazam, Masoud Movassaghi, Johan Garssen, Hamidreza Jamaati, Aliakbar Velayati
Pattern recognition receptors (PRRs) recognize common microbial or host-derived macromolecules and have important roles in early activation and response of the immune system. Initiation of the innate immune response starts with the recognition of microbial structures called pathogen associated molecular patterns (PAMPs). Recognition of PAMPs is performed by germline-encoded receptors expressed mainly on immune cells termed pattern recognition receptors (PRRs). Several classes of pattern recognition receptors (PRRs) are involved in the pathogenesis of diseases, including Toll-like receptors (TLRs), C-type lectin receptors (CLRs), and Nod-like receptors (NLRs)...
January 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28090010/long-term-outcomes-after-percutaneous-lower-extremity-arterial-interventions-with-atherectomy-vs-balloon-angioplasty%C3%A3-propensity-score-matched-registry
#5
Adam Janas, Piotr P Buszman, Krzysztof P Milewski, Szymon Wiernek, Ksenia Janas, Maciej Pruski, Wojciech Wojakowski, Aleksandra Błachut, Wojciech Picheta, Pawel Buszman, Stefan Kiesz
BACKGROUND: The impact of endovascular revascularization of the lower extremity arteries with atherectomy (AT) compared with percutaneous transluminal angioplasty (PTA) is still unclear. Therefore, the aim of the study was to compare long-term outcomes after percutaneous PTA and AT in patients requiring endovascular revascularization.Methods and Results:This was a single-center, retrospective registry of obstructive and symptomatic PAD patients who underwent endovascular revascularization...
January 14, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28089548/nanoformulation-of-synergistic-tlr-ligands-to-enhance-vaccination-against-entamoeba-histolytica
#6
Mayuresh M Abhyankar, Zannatun Noor, Mark A Tomai, James Elvecrog, Christopher B Fox, William A Petri
Diarrheal infectious diseases represent a major cause of global morbidity and mortality. There is an urgent need for vaccines against diarrheal pathogens, especially parasites. Modern subunit vaccines rely on combining a highly purified antigen with an adjuvant to increase their efficacy. In the present study, we evaluated the ability of a nanoliposome adjuvant system to trigger a strong mucosal immune response to the Entamoeba histolytica Gal/GalNAc lectin LecA antigen. CBA/J mice were immunized with alum, emulsion or liposome based formulations containing synthetic TLR agonists...
January 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28088291/bcfa-suppresses-lps-induced-il-8-mrna-expression-in-human-intestinal-epithelial-cells
#7
Y Yan, Z Wang, J Greenwald, K S D Kothapalli, H G Park, R Liu, E Mendralla, P Lawrence, X Wang, J T Brenna
Branched chain fatty acids (BCFA) are components of common food fats and are major constituents of the normal term human newborn GI tract. Polyunsaturated fatty acids (PUFA) have been suggested to reduce the risk and development of inflammatory bowel diseases (IBD); however, little is known about the influence of BCFA on inflammation. We investigated the effect of BCFA on interleukin (IL)-8 and NF-κB production in a human intestinal epithelial cell line (Caco-2). Cells were pre-treated with specific BCFA, or DHA, or EPA, and then activated with lipopolysaccharide (LPS)...
January 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28072760/pentoxifylline-inhibits-tlr-and-inflammasome-mediated-in-vitro-inflammatory-cytokine-production-in-human-blood-with-greater-efficacy-and-potency-in-newborns
#8
Esther M Speer, David J Dowling, Lukasz S Ozog, Jianjin Xu, Jie Yang, Geetika Kennady, Ofer Levy
BACKGROUND: Toll-like receptor (TLR)-mediated inflammation may contribute to neonatal sepsis, for which pentoxifylline (PTX), a phosphodiesterase inhibitor that raises intracellular cAMP, is a candidate adjunctive therapy. We characterized the anti-inflammatory effects of PTX towards TLR-mediated production of inflammatory (TNF, IL-1ß) and pro-resolution (IL-6, IL- 10) cytokines in human newborn and adult blood. METHODS: Newborn cord and adult blood were treated with PTX (50 - 400 μM) before, during or after stimulation with LPS (TLR4 agonist), R848 (TLR7/8 agonist) or LPS/ATP (inflammasome activation)...
January 10, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28061808/effect-of-diabetes-mellitus-on-long-term-outcomes-after-repeat-drug-eluting-stent-implantation-for-in-stent-restenosis
#9
Lin Zhao, Weiwei Zhu, Xiaojiang Zhang, Dongfang He, Chengjun Guo
BACKGROUND: Whether diabetes mellitus (DM) is a predictor of long-term adverse clinical outcomes after repeat drug eluting stent (DES) implantation for DES in-stent restenosis (ISR) remains controversial. We sought to evaluate the effect of DM on the long-term clinical outcomes in patients undergoing repeat DES implantation for DES-ISR lesions. METHODS: In the present study, 254 patients with DES-ISR were divided into DM or non-DM groups according to the presence or absence of DM...
January 6, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28061462/identifying-genetic-hypomethylation-and-upregulation-of-toll-like-receptors-in-kawasaki-disease
#10
Ying-Hsien Huang, Sung-Chou Li, Lien-Hung Huang, Pao-Chun Chen, Yi-Yu Lin, Chiung-Chun Lin, Ho-Chang Kuo
Kawasaki disease (KD) is an acute febrile systemic vasculitis that occurs in children and is characterized by elevated levels of proinflammatory cytokines. Toll-like receptors (TLRs) serve as the sensor arm of the innate immune system and induce proinflammatory cytokine expressions.We recruited a total of 18 paired KD patients, before intravenous immunoglobulin (IVIG) and at least 3 weeks after IVIG treatment, 18 healthy controls, and 18 febrile controls. For TLR genes and their cytosine-phosphate-guanine (CpG) markers, we used Affymetrix GeneChip® Human Transcriptome Array 2...
January 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28057018/bioinformatic-analysis-of-microrna-and-mrna-regulation-in-peripheral-blood-mononuclear-cells-of-patients-with-chronic-obstructive-pulmonary-disease
#11
Xiaomin Dang, Xiaoyan Qu, Weijia Wang, Chongbing Liao, Ying Li, Xiaojin Zhang, Dan Xu, Carolyn J Baglole, Dong Shang, Ying Chang
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a progressive, irreversible chronic inflammatory disorder typified by increased recruitment of monocytes, lymphocytes and neutrophils. Because of this, as well as the convenience of peripheral blood nuclear cells (PBMCs) assessments, miRNA profiling of PBMCs has drawn increasing attention in recent years for various disease. Therefore, we analyzed miRNA and mRNA profiles to understand their regulatory network between COPD subjects versus smokers without airflow limitation...
January 5, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28056810/porphyromonas-gingivalis-activates-nf%C3%AE%C2%BAb-and-mapk-pathways-in-human-oral-epithelial-cells
#12
Sabine Groeger, Fabian Jarzina, Eugen Domann, Joerg Meyle
BACKGROUND: The bacterial biofilm at the gingival margin induces a host immune reaction. In this local inflammation epithelial cells defend the host against bacterial challenge. Porphyromonas gingivalis (P. gingivalis), a keystone pathogen, infects epithelial cells. The aim of this study was to investigate the activation of signaling cascades in primary epithelial cells and oral cancer cell lines by a profiler PCR array. RESULTS: After infection with P. gingivalis membranes the RNA of 16 to 33 of 84 key genes involved in the antibacterial immune response was up-regulated, amongst them were IKBKB (NF-κB signaling pathway), IRF5 (TLR signaling) and JUN, MAP2K4, MAPK14 and MAPK8 (MAPK pathway) in SCC-25 cells and IKBKB, IRF5, JUN, MAP2K4, MAPK14 and MAPK8 in PHGK...
January 5, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28052863/double-stranded-rna-up-regulates-the-expression-of-inflammatory-mediators-in-human-aortic-valve-cells-through-the-tlr3-trif-non-canonical-nf-%C3%AE%C2%BAb-pathway
#13
Qiong Zhan, Rui Song, Fei Li, Lihua Ao, Qingchun Zeng, Dingli Xu, David A Fullerton, Xianzhong Meng
BACKGROUND: Calcific aortic valve disease (CAVD) is a chronic inflammatory condition and the inflammatory responses of aortic valve interstitial cells (AVICs) play a critical role in the disease progression. Double-stranded RNA (dsRNA) released from damaged or stressed cells is pro-inflammatory and may contribute to the mechanism of chronic inflammation observed in diseased aortic valves. The objective of this study is to determine the effect of dsRNA on AVIC inflammatory responses and the underlying mechanism...
January 4, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28052637/future-anti-hbv-strategies
#14
REVIEW
Edward J Gane
Although current oral antivirals can maintain viral suppression and reduce the risk of liver-related complications, lifelong therapy is associated with high cost, risk of breakthrough and potential toxicity. There is a need to develop a finite course of treatment which can provide sustained off-treatment virological and clinical response. The likely marker of such a clinical HBV CURE would be HBsAg clearance, but in addition cccDNA elimination would be required to prevent future reactivation (ie complete HBV cure)...
January 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28039018/estrogen-regulated-stat1-activation-promotes-tlr8-expression-to-facilitate-signaling-via-microrna-21-in-systemic-lupus-erythematosus
#15
Nicholas A Young, Giancarlo R Valiente, Jeffrey M Hampton, Lai-Chu Wu, Craig J Burd, William L Willis, Michael Bruss, Holly Steigelman, Maya Gotsatsenko, Stephanie A Amici, Mary Severin, Lucila Marino Claverie, Mireia Guerau-de-Arellano, Amy Lovett-Racke, Stacy Ardoin, Wael N Jarjour
Recent studies implicate innate immunity to systemic lupus erythematosus (SLE) pathogenesis. Toll-like receptor (TLR)8 is estrogen-regulated and binds viral ssRNA to stimulate innate immune responses, but recent work indicates that microRNA (miR)-21 within extracellular vesicles (EVs) can also trigger this receptor. Our objective was to examine TLR8 expression/activation to better understand sex-biased responses involving TLR8 in SLE. Our data identify an estrogen response element that promotes STAT1 expression and demonstrate STAT1-dependent transcriptional activation of TLR8 with estrogen stimulation...
December 27, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28036266/combining-vasculature-disrupting-agent-and-toll-like-receptor-7-8-agonist-for-cancer-therapy
#16
Anushree Seth, Hyunseung Lee, Mi Young Cho, Cheongsoo Park, Sovannarith Korm, Joo-Yong Lee, Inpyo Choi, Yong Taik Lim, Kwan Soo Hong
This study evaluates the effect of combination of two different treatment regimens for solid tumor therapy: vasculature targeting agent and immune-stimulation. Poly lactide-co-glycolide (PLGA) nanoparticles were synthesized for intracellular delivery of toll-like receptor (TLR) 7/8 agonist-gardiquimod. Spherical and mono-disperse gardiquimod encapsulated PLGA nanoparticles (Gardi-PLGA), approximately 194 nm in size were formulated. Gardi-PLGA induced immune-stimulation, and vasculature disrupting agent (VDA)-5,6-Dimethylxanthenone-4-acetic acid (DMXAA) was used in combination to assessing the influence on bone marrow derived dendritic cells (BMDCs) and B16-F10 melanoma cells...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28031717/association-between-tlr-9-polymorphisms-and-colon-cancer-susceptibility-in-saudi-arabian-female-patients
#17
Abdelhabib Semlali, Narasimha Reddy Parine, Abdullah Al Amri, Arezki Azzi, Maha Arafah, Muhammad Kohailan, Jilani P Shaik, Majid Abdulrahman Almadi, Abdulrahman M Aljebreen, Othman Alharbi, Nahla Ali Azzam, Mahmoud Rouabhia, Mohammad Saud Alanazi
OBJECTIVE: The authors aimed to explore the relationship between the expression/polymorphisms of TLR-9 and susceptibility to colon cancer development in the Saudi Arabian population. METHODS: In total, blood samples from 115 patients with colon cancer and 102 participants without colon cancer were analyzed in this study. Three single-nucleotide polymorphisms (SNPs) were selected from the TLR-9 gene, including two sites within the TLR-9 gene's promoter region (rs352144 and rs187084) and one site in a TLR-9 intron region (rs5743839)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28011143/dynamic-changes-in-resident-and-infiltrating-epidermal-dendritic-cells-in-active-and-resolved-psoriasis
#18
Elisa Martini, Maria Wiken, Stanley Cheuk, Irène Gallais Sérézal, Faezzah Baharom, Mona Ståhle, Anna Smed-Sörensen, Liv Eidsmo
Epidermal Langerhans cells (LCs) are spatially separated from dermal dendritic cells (DCs) in healthy human skin. In active psoriasis, maintained by local production of IL-23 and IL-17, DCs infiltrate both skin compartments. Here we show that CCR2(+) epidermal DCs (eDCs), phenotypically distinct from dermal DCs, were strictly confined to lesional psoriasis. The eDCs exceeded the number of LCs and displayed high expression of genes involved in neutrophil recruitment and the activation of keratinocytes and T cells...
December 20, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28007298/benefit-of-final-kissing-balloon-inflation-mandatory-after-simple-crossover-stenting-for-left-main-bifurcation-narrowing
#19
Jung-Min Ahn, Pil Hyung Lee, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Cheol Whan Lee, Seong-Wook Park, Seung-Jung Park
The role of final kissing balloon (FKB) inflation after simple crossover stenting in unprotected left main (LM) bifurcation stenosis remains unknown. From the Asan Medical Center-Left Main Revascularization (ASAN-MAIN) registry, 413 patients with LM bifurcation stenosis treated by simple crossover stenting with a drug-eluting stent were identified. After simple crossover stenting, FKB inflation was performed in 95 patients (FKB group) and 318 patients finished the procedure without FKB (no-FKB group). The primary end points of the 2-year incidence of major adverse cardiac events (death, myocardial infarction, and left main target lesion revascularization [LM-TLR]) were similar between the FKB and no-FKB groups (12...
November 16, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/28003154/antipsychotics-influence-toll-like-receptor-tlr-expression-and-its-relationship-with-cognitive-functions-in-schizophrenia
#20
Szabolcs Kéri, Csilla Szabó, Oguz Kelemen
Increasing evidence suggests that altered immune functions are related to the pathophysiology of schizophrenia. Relatively little information is available on Toll-like receptors (TLRs), which are implicated in the recognition of molecular patterns associated with pathogens and internal cellular damage signals. By using immunophenotyping and flow cytometry, we investigated TLRs in CD14+ monocytes, CD4+CD25+Foxp3+ regulatory T cells (Treg), and CD3+CD4+CD25+ activated T cells (Tact) in 35 drug-naïve patients with schizophrenia before and after an 8-week period of antipsychotic treatment with risperidone or olanzapine...
December 19, 2016: Brain, Behavior, and Immunity
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