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https://www.readbyqxmd.com/read/28317351/-effects-of-porphyromonas-gingivalis-on-interleukin-33-expression-in-rabbit-vascular-endothelium-tissues
#1
Li Weishan, Li Dechao, Qiu Rongrong
OBJECTIVE: To investigate interleukin-33 (IL-33) in the arterial vascular endothelium of rabbits infected with Porphyromonas gingivalis (P. gingivalis), and to explore the relationship between P. gingivalis and atherosclerosis. METHODS: A total of 24 rabbits were randomly divided into control and experimental groups. The experimental group received intravenous injection of P. gingivalis once a week for 12 weeks to establish a coronary atherosclerosis model. The rabbits in the control group were injected with equal volume of physiological saline...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28316175/-diagnostic-value-of-combining-serum-soluble-st2-and-interleukin-33-for-heart-failure-patients-with-preserved-left-ventricular-ejection-fraction
#2
N S Luo, H F Zhang, P M Liu, Y Q Lin, T C Huang, Y Yang, J F Wang
Objective: Diagnostic efficacy of serum markers is low for heart failure patients with preserved left ventricular ejection fraction (HF-pEF) as compared to heart failure patients with reduced left ventricular ejection fraction.We sought to explore the diagnostic value of serum levels of soluble ST2 (sST2) combined with interleukin-33 (IL-33) for the diagnosis of HF-pEF in this study. Methods: A total of 376 patients with HF-pEF (HF group), 376 matched-control patients without heart failure who shared similar clinical characteristics (non-HF group) were included in the study...
March 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28303765/the-significance-of-the-levels-of-il-4-il-31-and-tlsp-in-patients-with-asthma-and-or-rhinitis
#3
Ruonan Chai, Beixing Liu, Feifei Qi
AIM: To investigate the clinical significance of the levels of IL-4, IL-33 and thymic stromal lymphopoietin (TLSP) in patients with asthma and/or rhinitis, then do the simple verification in animals. METHODS: Levels of IL-4 IL-31, IL-33 and TLSP were detected by ELISA and real-time PCR in 64 asthma patients (sIgE[+]: 32 cases, sIgE[-]: 32 cases), 64 rhinitis patients (sIgE[+]: 32 cases, sIgE[-]: 32 cases), 64 asthma complicated with allergic rhinitis patients (sIgE[+]: 32 cases, sIgE[-]: 32 cases) and 32 healthy controls...
March 2017: Immunotherapy
https://www.readbyqxmd.com/read/28275176/human-bronchial-epithelium-orchestrates-dendritic-cell-activation-in-severe-asthma
#4
Delphine Gras, Asuncion Martinez-Anton, Arnaud Bourdin, Celine Garulli, Laure de Senneville, Isabelle Vachier, Joana Vitte, Pascal Chanez
The innate immune response is impaired in asthma, with increased epithelial release of C-X-C motif chemokine ligand (CXCL)8, interleukin (IL)-33 and thymic stromal lymphopoietin (TSLP). We hypothesised that dendritic cells might modulate the hyperresponsive epithelium in severe asthma.For this purpose, we investigated epithelial-dendritic crosstalk in normal and diseased conditions, and because ultrafine particulate matter may affect asthmatic airways, we investigated its impact on this crosstalk. Air-liquid interface cultures of human bronchial epithelial cells (HBEC) of control subjects (cHBEC) or severe asthma patients (saHBEC) were co-cultured with monocyte-derived dendritic cells (moDC)...
March 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28275135/nk-cells-alleviate-lung-inflammation-by-negatively-regulating-group-2-innate-lymphoid-cells
#5
Jiacheng Bi, Lulu Cui, Guang Yu, Xiaolu Yang, Youhai Chen, Xiaochun Wan
Group 2 innate lymphoid cells (ILC2s) play an important role in orchestrating type II immune responses. However, the cellular mechanisms of group 2 innate lymphoid cell regulation remain poorly understood. In this study, we found that activated NK cells inhibited the proliferation of, as well as IL-5 and IL-13 production by, ILC2s in vitro via IFN-γ. In addition, in a murine model of ILC2 expansion in the liver, polyinosinic-polycytidylic acid, an NK cell-activating agent, inhibited ILC2 proliferation, IL-5 and IL-13 production, and eosinophil recruitment...
March 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28274612/effects-of-obesity-on-il-33-st2-system-in-heart-adipose-tissue-and-liver-study-in-the-experimental-model-of-zucker-rats
#6
Rosetta Ragusa, Manuela Cabiati, Maria Angela Guzzardi, Andrea D'Amico, Daniela Giannessi, Silvia Del Ry, Chiara Caselli
Suppression of tumorigenicity 2 (ST2) mediates the effect of Interleukin-33 (IL-33). Few data are reported on the relationship between IL-33/ST2 and obesity. We aimed to investigate effects of obesity on IL-33/ST2 system in heart, adipose tissue and liver in a rodent model of obesity. The relationship of cardiac expression of IL-33/ST2 system with natriuretic peptides (NPs) system and inflammatory mediators was also studied. mRNA expression of IL-33/ST2 system was evaluated in cardiac, adipose and hepatic biopsies from obese Zucker rats (O) and controls (CO)...
March 6, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28273344/oxidative-stress-serves-as-a-key-checkpoint-for-il-33-release-by-airway-epithelium
#7
Masaru Uchida, Erik L Anderson, Diane L Squillace, Nandadevi Patil, Peter J Maniak, Koji Iijima, Hirohito Kita, Scott M O'Grady
BACKGROUND: Interleukin (IL)-33 is implicated in the pathophysiology of asthma and allergic diseases. However, our knowledge is limited regarding how IL-33 release is controlled. The transcription factor nuclear factor-erythroid-2-related factor 2 (Nrf2) plays a key role in antioxidant response regulation. OBJECTIVE: The goal of this project was to investigate the role of cellular oxidative stress in controlling IL-33 release in airway epithelium. METHODS: Complementary approaches were used that included human bronchial epithelial cells and mouse models of airway type-2 immunity that were exposed to fungus Alternaria extract...
March 8, 2017: Allergy
https://www.readbyqxmd.com/read/28273074/a-rare-il33-loss-of-function-mutation-reduces-blood-eosinophil-counts-and-protects-from-asthma
#8
Dirk Smith, Hannes Helgason, Patrick Sulem, Unnur Steina Bjornsdottir, Ai Ching Lim, Gardar Sveinbjornsson, Haruki Hasegawa, Michael Brown, Randal R Ketchem, Monica Gavala, Logan Garrett, Adalbjorg Jonasdottir, Aslaug Jonasdottir, Asgeir Sigurdsson, Olafur T Magnusson, Gudmundur I Eyjolfsson, Isleifur Olafsson, Pall Torfi Onundarson, Olof Sigurdardottir, David Gislason, Thorarinn Gislason, Bjorn Runar Ludviksson, Dora Ludviksottir, H Marike Boezen, Andrea Heinzmann, Marcus Krueger, Celeste Porsbjerg, Tarunveer S Ahluwalia, Johannes Waage, Vibeke Backer, Klaus A Deichmann, Gerard H Koppelman, Klaus Bønnelykke, Hans Bisgaard, Gisli Masson, Unnur Thorsteinsdottir, Daniel F Gudbjartsson, James A Johnston, Ingileif Jonsdottir, Kari Stefansson
IL-33 is a tissue-derived cytokine that induces and amplifies eosinophilic inflammation and has emerged as a promising new drug target for asthma and allergic disease. Common variants at IL33 and IL1RL1, encoding the IL-33 receptor ST2, associate with eosinophil counts and asthma. Through whole-genome sequencing and imputation into the Icelandic population, we found a rare variant in IL33 (NM_001199640:exon7:c.487-1G>C (rs146597587-C), allele frequency = 0.65%) that disrupts a canonical splice acceptor site before the last coding exon...
March 8, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28266165/il33-and-il1rl1-variants-are-associated-with-asthma-and-atopy-in-a-brazilian-population
#9
G A Queiroz, R S Costa, N M Alcantara-Neves, G Nunes de Oliveira Costa, M L Barreto, V L Carneiro, C A Figueiredo
Atopic asthma is a chronic inflammatory disease in airways resulting from genetic and environmental factors, characterized by production of the Th2 cytokines interleukin-4 (IL-4), interleukin-5 (IL-5) and interleukin-13 (IL-13). Interleukin-33 (IL-33) appears to be a potent inducer of Th2 immune response. This occurs when IL-33 binds and activates its receptor, the membrane ST2 (ST2L) in mast cells, dendritic cells, basophils, eosinophils, innate lymphoids and Th2 cells, leading to the release of these cytokines and intensifying allergic inflammation...
April 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/28265480/proximity-to-a-major-road-and-plasma-cytokines-in-school-aged-children
#10
Franziska Rosser, Erick Forno, John Brehm, Yueh-Ying Han, Nadia Boutaoui, Angel Colón-Semidey, María Alvarez, Edna Acosta-Pérez, Kristen S Kurland, John F Alcorn, Glorisa Canino, Juan C Celedón
Traffic-related air pollution (TRAP) may affect immune responses, including those in the TH2 and TH17 pathways. To examine whether TRAP is associated with plasma level of TH17-, TH1-, and TH2-related cytokines in children with and without asthma, a cross-sectional study of 577 children (ages 6-14 years) with (n = 294) and without (n = 283) asthma in San Juan (Puerto Rico) was performed. Residential distance to a major road was estimated using geocoded home addresses for study participants. A panel of 14 cytokines, enriched for the TH17 pathway, was measured in plasma...
September 1, 2016: Pediatric Allergy, Immunology, and Pulmonology
https://www.readbyqxmd.com/read/28262704/il-33-st2-immune-responses-to-respiratory-bacteria-in-pediatric-asthma
#11
Isabell Hentschke, Anna Graser, Volker O Melichar, Alexander Kiefer, Theodor Zimmermann, Bettina Kroß, Patricia Haag, Paraskevi Xepapadaki, Nikolaos G Papadopoulos, Christian Bogdan, Susetta Finotto
Here we investigated the relationship between local bacterial colonization and anti-bacterial immune responses in pre-school asthmatic and control children within the EU-wide study PreDicta. In this cohort of pre-school asthmatic children, nasopharyngeal colonization with Gram-negative bacteria such as Haemophilus influenzae and Moraxella catarrhalis was found to be associated with the highest interferon beta (IFNβ) and IL-33 levels in the nasal pharyngeal fluids (NPF). IL33R-ST2 was found induced in the blood of asthmatic children with additional Gram + bacteria in the nasopharynx (Gr+/-)...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28259547/clock-dependent-temporal-regulation-of-il-33-st2-mediated-mast-cell%C3%A2-response
#12
Takahiro Kawauchi, Kayoko Ishimaru, Yuki Nakamura, Nobuhiro Nakano, Mutsuko Hara, Hideoki Ogawa, Ko Okumura, Shigenobu Shibata, Atsuhito Nakao
BACKGROUND: Interleukin-33 (IL-33) is an alarmin cytokine that binds to the interleukin 1 receptor-like 1 protein ST2. Clock is a key circadian gene that is essential for endogenous clockworks in mammals. This study investigated whether Clock temporally regulated IL-33-mediated responses in mast cells. METHODS: The kinetics of IL-33-mediated IL-6, IL-13, and TNF-α productions were compared between bone marrow-derived mast cells (BMMCs) from wild-type and Clock-mutated mice (Clock(Δ19/Δ19) mice)...
March 2, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28258201/endothelial-il-33-expression-is-augmented-by-adenoviral-activation-of-the-dna-damage-machinery
#13
Tor Espen Stav-Noraas, Reidunn J Edelmann, Lars La Cour Poulsen, Olav Sundnes, Danh Phung, Axel M Küchler, Fredrik Müller, Amine A Kamen, Guttorm Haraldsen, Mari Kaarbø, Johanna Hol
IL-33, required for viral clearance by cytotoxic T cells, is generally expressed in vascular endothelial cells in healthy human tissues. We discovered that endothelial IL-33 expression was stimulated as a response to adenoviral transduction. This response was dependent on MRE11, a sensor of DNA damage that can also be activated by adenoviral DNA, and on IRF1, a transcriptional regulator of cellular responses to viral invasion and DNA damage. Accordingly, we observed that endothelial cells responded to adenoviral DNA by phosphorylation of ATM and CHK2 and that depletion or inhibition of MRE11, but not depletion of ATM, abrogated IL-33 stimulation...
March 3, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28258042/il-33-induces-both-regulatory-b-cells-and-regulatory-t-cells-in-dextran-sulfate-sodium-induced-colitis
#14
Junfeng Zhu, Ying Xu, Chunyu Zhu, Jian Zhao, Xinrui Meng, Siyao Chen, Tianqi Wang, Xue Li, Li Zhang, Changlong Lu, Hongsheng Liu, Xun Sun
Interleukin (IL)-33 is a member of the IL-1 family. Serum levels of IL-33 are increased in inflammatory bowel diseases (IBD), suggesting that IL-33 is involved in the pathogenesis of IBD, although its role is not clear. In this study, we investigated the role of IL-33 in the regulation of T-helper (Th) cell and B cell responses in mesenteric lymph nodes (MLN) in mice with dextran sulfate sodium (DSS)-induced colitis. Here, we showed that IL-33-treated mice were susceptible to DSS-induced colitis as compared with PBS-treated mice...
February 28, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28255167/toluene-diisocyanate-exposure-induces-airway-inflammation-of-bronchial-epithelial-cells-via-the-activation-of-transient-receptor-potential-melastatin-8
#15
Joo-Hee Kim, Young-Sook Jang, Seung-Hun Jang, Ki-Suck Jung, Seung-Hyun Kim, Young-Min Ye, Hae-Sim Park
Toluene diisocyanate (TDI) is the most important cause of occupational asthma (OA), and various pathogenic mechanisms have been suggested. Of these mechanisms, neurogenic inflammation is an important inducer of airway inflammation. Transient receptor potential melastatin 8 (TRPM8) is a well-established cold-sensing cation channel that is expressed in both neuronal cells and bronchial epithelial cells. A recent genome-wide association study of TDI-exposed workers found a significant association between the phenotype of TDI-induced OA and the single-nucleotide polymorphism rs10803666, which has been mapped to the TRPM8 gene...
March 3, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28252235/toll-like-receptor-induced-expression-of-epithelial-cytokine-receptors-on-hemopoietic-progenitors-is-altered-in-allergic-asthma
#16
Damian Tworek, Delia Heroux, Seamus N O'Byrne, Patrick Mitchell, Paul M O'Byrne, Judah A Denburg
BACKGROUND: Hemopoietic progenitor cells (HPC) migrate to sites of allergic inflammation where, upon stimulation with epithelial cytokines, they produce Th2 cytokines and differentiate into mature eosinophils and basophils. They also express Toll-like receptors (TLR) involved in anti-microbial responses. OBJECTIVE: The objective of this study was to compare TLR expression on peripheral blood HPC and TLR-induced responses, in particular changes in epithelial cytokine receptors, in healthy and asthmatic subjects at baseline and following allergen challenge...
March 1, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28249897/il-33-promotes-colon-cancer-cell-stemness-via-jnk-activation-and-macrophage-recruitment
#17
Min Fang, Yongkui Li, Kai Huang, Shanshan Qi, Jian Zhang, Witold Zgodzinski, Marek Majewski, Grzegorz Wallner, Stanislaw Gozdz, Pawel Macek, Artur Kowalik, Marcin Pasiarski, Ewelina Grywalska, Linda Vatan, Nisha Nagarsheth, Wei Li, Lili Zhao, Ilona Kryczek, Guobin Wang, Zheng Wang, Weiping Zou, Lin Wang
The expression and biological role of IL-33 in colon cancer is poorly understood. In this study, we show that IL-33 is expressed by vascular endothelial cells and tumor cells in the human colon cancer microenvironment. Administration of human IL-33 and overexpression of murine IL-33 enhanced human and murine colon cancer cell growth in vivo, respectively. IL-33 stimulated cell sphere formation and prevented chemotherapy-induced tumor apoptosis. Mechanistically, IL-33 activated core stem cell genes NANOG, NOTCH3, and OCT3/4 via the ST2 signaling pathway, and induced phosphorylation of c-Jun N-terminal kinase activation (JNK), and enhanced binding of c-Jun to the promoters of the core stem cell genes...
March 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28228560/expression-of-il-22-in-the-skin-causes-th2-biased-immunity-epidermal-barrier-dysfunction-and-pruritus-via-stimulating-epithelial-th2-cytokines-and-the-grp-pathway
#18
Hongfei Lou, Jingning Lu, Eun Byul Choi, Min Hee Oh, Mingeum Jeong, Sara Barmettler, Zhou Zhu, Tao Zheng
Increased expression of Th22 cytokine IL-22 is a characteristic finding in atopic dermatitis (AD). However, the specific role of IL-22 in the pathogenesis of AD in vivo has yet to be elucidated. Consistent with observations in human AD, IL-22 was significantly increased in the AD skin of mice after epicutaneous sensitization to house dust mite allergen. Utilizing a skin-specific inducible transgenic system, we show in the present study that expression of IL-22 in the skin of mice caused an AD-like phenotype characterized by chronic pruritic dermatitis associated with Th2-biased local and systemic immune responses, downregulation of epidermal differentiation complex genes, and enhanced dermatitis upon epicutaneous allergen exposure...
April 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28228280/autocrine-loop-involving-il-6-family-member-lif-lif-receptor-and-stat4-drives-sustained-fibroblast-production-of-inflammatory-mediators
#19
Hung N Nguyen, Erika H Noss, Fumitaka Mizoguchi, Christine Huppertz, Kevin S Wei, Gerald F M Watts, Michael B Brenner
Fibroblasts are major contributors to and regulators of inflammation and dominant producers of interleukin-6 (IL-6) in inflammatory diseases like rheumatoid arthritis. Yet, compared to leukocytes, the regulation of inflammatory pathways in fibroblasts is largely unknown. Here, we report that analyses of genes coordinately upregulated with IL-6 pointed to STAT4 and leukemia inhibitory factor (LIF) as potentially linked. Gene silencing revealed that STAT4 was required for IL-6 transcription. STAT4 was recruited to the IL-6 promoter after fibroblast activation, and LIF receptor (LIFR) and STAT4 formed a molecular complex that, together with JAK1 and TYK2 kinases, controlled STAT4 activation...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28228256/first-breath-induced-type-2-pathways-shape-the-lung-immune-environment
#20
Simona Saluzzo, Anna-Dorothea Gorki, Batika M J Rana, Rui Martins, Seth Scanlon, Philipp Starkl, Karin Lakovits, Anastasiya Hladik, Ana Korosec, Omar Sharif, Joanna M Warszawska, Helen Jolin, Ildiko Mesteri, Andrew N J McKenzie, Sylvia Knapp
From birth onward, the lungs are exposed to the external environment and therefore harbor a complex immunological milieu to protect this organ from damage and infection. We investigated the homeostatic role of the epithelium-derived alarmin interleukin-33 (IL-33) in newborn mice and discovered the immediate upregulation of IL-33 from the first day of life, closely followed by a wave of IL-13-producing type 2 innate lymphoid cells (ILC2s), which coincided with the appearance of alveolar macrophages (AMs) and their early polarization to an IL-13-dependent anti-inflammatory M2 phenotype...
February 21, 2017: Cell Reports
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