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https://www.readbyqxmd.com/read/29147584/il-33-acts-to-express-schaffer-collateral-ca1-ltp-and-regulate-learning-and-memory-by-targeting-myd88
#1
Tomoyuki Nishizaki
Interleukin-33 (IL-33) is recognized to transmit a signal through a heterodimeric receptor complex ST2/interleukin-1 receptor accessory protein (IL-1RAcP) bearing activation of myeloid differentiation factor 88 (MyD88). High-frequency stimulation to the Schaffer collateral induced long-term potentiation (LTP) in the CA1 region of hippocampal slices from wild-type control mice. Schaffer collateral/CA1 LTP in IL-33-deficient mice was significantly suppressed, which was neutralized by application with IL-33. Similar suppression of the LTP was found with MyD88-deficient mice but not with ST2-deficient mice...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/29146574/mast-cell-dependent-il-33-st2-signaling-is-protective-against-the-development-of-airway-hyperresponsiveness-in-a-house-dust-mite-mouse-model-of-asthma
#2
Anna Maria Zoltowska Nilsson, Ying Lei, Mikael Adner, Gunnar P Nilsson
Interleukin-33 (IL-33) and its receptor ST2 have been influentially associated to the pathophysiology of asthma. Due to the divergent roles of IL-33 in regulating mast cell functions, there is a need to further characterize IL-33/ST2-dependent mast cell responses and their significance in the context of asthma. This study aimed to investigate how IL-33/ST2-dependent mast cell responses contribute to the development of airway hyperresponsiveness (AHR) and airway inflammation in a mouse model of house dust mite (HDM) induced asthma...
November 16, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29144996/new-roles-and-controls-of-mast-cells
#3
REVIEW
Eric Espinosa, Salvatore Valitutti
Mast cells are innate immune cells implicated in immune surveillance and defense. They are filled with secretory granules where a vast array of molecules endowed with multiple biological activities are stored. The process of granule secretion, named degranulation, is a tightly controlled biological phenomenon that allows mast cells to rapidly and efficiently release bioactive mediators in response to extracellular stimuli. MC degranulation allows fighting pathogens, limiting envenomation and contributes to tissue homeostasis...
November 13, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/29133293/il-33-responsive-group-2-innate-lymphoid-cells-are-regulated-by-female-sex-hormones-in-the-uterus
#4
Kathleen Bartemes, Chien-Chang Chen, Koji Iijima, Li Drake, Hirohito Kita
Group 2 innate lymphoid cells (ILC2s) reside in multiple organs in the body, where they play roles in immunity, tissue homeostasis, and metabolic regulation. However, little is known about the regulatory mechanisms of ILC2s in different organs. Here, we identified ILC2s in the mouse uterus and found that they express cell surface molecules, including the IL-33 receptor, ST2, that are roughly comparable to those expressed by lung ILC2s. Both in vivo and in vitro treatment with IL-33 induced type 2 cytokine production in uterine ILC2s, suggesting that they respond to IL-33 in a manner similar to ILC2s in other organs...
November 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29131267/interleukin-33-promotes-the-inflammatory-reaction-in-chronic-rhinosinusitis-with-nasal-polyps-by-nf-%C3%AE%C2%BAb-signaling-pathway
#5
L Zhang, L-L Jiang, Z-W Cao
OBJECTIVE: Interleukin (IL)-33 promotes T helper (Th2) immune response and may be involved in the pathogenesis of chronic rhinosinusitis with nasal polyps (CRSwNP). Using murine and human specimens, we evaluated the role of IL-33 in CRSwNP. MATERIALS AND METHODS: To establish CRSwNP, Balb/c mice were sensitized with house dust mite, followed up by intranasal exposure to Staphylococcus aureus to stimulate the inflammatory response of nasal mucosa. The hematoxylin-eosin staining and total serum IgE were used to the successful construction of CRSwNP model...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29131079/are-inflammatory-cytokines-associated-with-pain-during-acute-myocardial-infarction
#6
Laurin Imholz, Rebecca E Meister-Langraf, Mary Princip, Michaela Fux, Ulrich Schnyder, Jürgen Barth, Hansjörg Znoj, Jean-Paul Schmid, Roland von Känel
OBJECTIVE: Pain and inflammation during acute myocardial infarction (AMI) have been associated with the development of posttraumatic stress disorder and may also impact negatively on somatic outcome. We investigated the relationship between pain during AMI and levels of circulating proinflammatory (tumor necrosis factor [TNF]-α, interleukin [IL]-6) and anti-inflammatory (IL-33 and tissue growth factor [TGF]-β1) cytokines. METHODS: Data were collected as part of the Myocardial Infarction - Stress Prevention Intervention (MI-SPRINT) study...
November 4, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/29123531/chronic-obstructive-pulmonary-disease-derived-circulating-cells-release-il-18-and-il-33-under-ultrafine-particulate-matter-exposure-in-a-caspase-1-8-independent-manner
#7
Gianluigi De Falco, Chiara Colarusso, Michela Terlizzi, Ada Popolo, Michela Pecoraro, Mario Commodo, Patrizia Minutolo, Mariano Sirignano, Andrea D'Anna, Rita P Aquino, Aldo Pinto, Antonio Molino, Rosalinda Sorrentino
Chronic obstructive pulmonary disease (COPD) is considered the fourth-leading causes of death worldwide; COPD is caused by inhalation of noxious indoor and outdoor particles, especially cigarette smoke that represents the first risk factor for this respiratory disorder. To mimic the effects of particulate matter on COPD, we isolated peripheral blood mononuclear cells (PBMCs) and treated them with combustion-generated ultrafine particles (UFPs) obtained from two different fuel mixtures, namely, pure ethylene and a mixture of ethylene and dimethylfuran (the latter mimicking the combustion of biofuels)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29122948/microrna-regulation-of-type-2-innate-lymphoid-cell-homeostasis-and-function-in-allergic-inflammation
#8
Priti B Singh, Heather H Pua, Hannah C Happ, Christoph Schneider, Jakob von Moltke, Richard M Locksley, Dirk Baumjohann, K Mark Ansel
MicroRNAs (miRNAs) exert powerful effects on immunity through coordinate regulation of multiple target genes in a wide variety of cells. Type 2 innate lymphoid cells (ILC2s) are tissue sentinel mediators of allergic inflammation. We established the physiological requirements for miRNAs in ILC2 homeostasis and immune function and compared the global miRNA repertoire of resting and activated ILC2s and T helper type 2 (TH2) cells. After exposure to the natural allergen papain, mice selectively lacking the miR-17∼92 cluster in ILC2s displayed reduced lung inflammation...
November 9, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29122645/interleukin-33-levels-are-elevated-in-chronic-allograft-dysfunction-of-kidney-transplant-recipients-and-promotes-epithelial-to-mesenchymal-transition-of-human-kidney-hk-2-cells
#9
Zhen Xu, Chunchun Zhao, Zijie Wang, Jun Tao, Zhijian Han, Wei Zhang, Ruoyun Tan, Min Gu
This study is aimed to investigate the potential role of interleukin (IL)-33 in transplanted kidney interstitial fibrosis and the associated mechanism. Serum IL-33 levels were detected using an enzyme-linked immunosorbent assay (ELISA) in healthy volunteers, stable kidney transplantation recipients (KTRs) (stable), KTRs with acute rejection (AR), and KTRs with chronic allograft dysfunction (CAD) (CAD). Immunohistochemical (IHC) staining, Western blotting, and quantitative real-time PCR (qRT-PCR) were used to detect the expression of IL-33 in human kidney tissues obtained from control and CAD patients...
November 6, 2017: Gene
https://www.readbyqxmd.com/read/29120743/staphylococcus-aureus-epicutaneous-exposure-drives-skin-inflammation-via-il-36-mediated-t-cell-responses
#10
Haiyun Liu, Nathan K Archer, Carly A Dillen, Yu Wang, Alyssa G Ashbaugh, Roger V Ortines, Tracy Kao, Steven K Lee, Shuting S Cai, Robert J Miller, Mark C Marchitto, Emily Zhang, Daniel P Riggins, Roger D Plaut, Scott Stibitz, Raif S Geha, Lloyd S Miller
Staphylococcus aureus colonization contributes to skin inflammation in diseases such as atopic dermatitis, but the signaling pathways involved are unclear. Herein, epicutaneous S. aureus exposure to mouse skin promoted MyD88-dependent skin inflammation initiated by IL-36, but not IL-1α/β, IL-18, or IL-33. By contrast, an intradermal S. aureus challenge promoted MyD88-dependent host defense initiated by IL-1β rather than IL-36, suggesting that different IL-1 cytokines trigger MyD88 signaling depending on the anatomical depth of S...
November 8, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/29110391/th2-axis-related-cytokines-in-patients-with-neuromyelitis-optica-spectrum-disorders
#11
Ying Zhang, Xiao-Ying Yao, Mei-Chun Gao, Jie Ding, Rong-Hua Hong, Hua Huang, Lei Zhuang, Yong-Gang Wang, Yong Hao, Yang-Tai Guan
AIMS: Neuromyelitis optica spectrum disorder (NMOSD) is an inflammatory autoimmune disease of the central nervous system. Increasing evidence indicates that NMOSD is a Th2- and Th17-dominant disease. IL-25, IL-31, and IL-33 are three newly found Th2-related cytokines, and their roles in the pathogenesis of NMOSD have not been studied. This study aimed to measure the serum levels of IL-25, IL-31, and IL-33 in patients with NMOSD and evaluate their clinical implications. METHODS: Serum was collected from patients with NMOSD (n = 48) and healthy controls (HC, n = 28)...
November 6, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29109296/reply-to-fattori-et-al-action-of-sp-and-il-33-on-mast-cells
#12
Theoharis C Theoharides, Alexandra Taracanova, Irene Tsilioni, Pio Conti, Susan E Leeman
No abstract text is available yet for this article.
November 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29107673/tranilast-inhibits-interleukin-33-production-by-macrophages
#13
Sachiko Hiraide, Yoshiki Yanagawa, Kenji Iizuka
Tranilast is an anti-allergy medication that inhibits the release of chemical mediators such as histamine. However, the mechanisms underlying its anti-allergy effects are not fully understood. Interleukin (IL)-33, a novel member of the IL-1 cytokine family, promotes T helper type 2 immune responses and plays a pathogenic role in allergic disorders. In the present study, we examined the effects of tranilast on IL-33 production by RAW264.7 macrophages. Lipopolysaccharide (LPS) increased both IL-33 mRNA expression and IL-33 protein synthesis...
October 28, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29101106/interleukin-il-33-and-the-il-1-family-of-cytokines-regulators-of-inflammation-and-tissue-homeostasis
#14
Ajithkumar Vasanthakumar, Axel Kallies
Cytokines play an integral role in shaping innate and adaptive immune responses. Members of the interleukin (IL)-1 family regulate a plethora of immune-cell-mediated processes, which include pathogen defense and tissue homeostasis. Notably, the IL-1 family cytokine IL-33 promotes adaptive and innate type 2 immune responses, confers viral protection and facilitates glucose metabolism and tissue repair. At the cellular level, IL-33 stimulates differentiation, maintenance, and function of various immune cell types, including regulatory T cells, effector CD4(+) and CD8(+) T cells, macrophages, and type 2 innate lymphoid cells (ILC2s)...
November 3, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/29100435/effect-of-talen-mediated-il-6-knockout-on-cell-proliferation-apoptosis-invasion-and-anti-cancer-therapy-in-hepatocellular-carcinoma-hcc-lm3-cells
#15
Peng-Yuan Zhuang, Ke-Wei Zhang, Jian-Dong Wang, Xue-Ping Zhou, Ying-Bin Liu, Zhi-Wei Quan, Jun Shen
Purpose: To determine the exact effect of Interleukin-6 (IL-6) on tumor cell proliferation, apoptosis, invasion, and anti-cancer therapy in hepatocellular carcinoma (HCC). Experimental Design: IL-6 was disrupted by transcription activator-like effector nucleases (TALEN) in HCCLM3 cells, and was used to evaluate the role of IL-6 on tumor cell proliferation, apoptosis, invasion and key signaling pathways involved in sorafenib and/or IFNα therapy. Results: IL-6 has no direct effect on cell proliferation and invasion but promotes cell apoptosis and up-regulate IL-33 and VEGF-A expression...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29099095/il-33-promotes-il-10-production-in-macrophages-a-role-for-il-33-in-macrophage-foam-cell-formation
#16
Hai-Feng Zhang, Mao-Xiong Wu, Yong-Qing Lin, Shuang-Lun Xie, Tu-Cheng Huang, Pin-Ming Liu, Ru-Qiong Nie, Qin-Qi Meng, Nian-Sang Luo, Yang-Xin Chen, Jing-Feng Wang
We evaluated the role of IL-10- in IL-33-mediated cholesterol reduction in macrophage-derived foam cells (MFCs) and the mechanism by which IL-33 upregulates IL-10. Serum IL-33 and IL-10 levels in coronary artery disease patients were measured. The effects of IL-33 on intra-MFC cholesterol level, IL-10, ABCA1 and CD36 expression, ERK 1/2, Sp1, STAT3 and STAT4 activation, and IL-10 promoter activity were determined. Core sequences were identified using bioinformatic analysis and site-specific mutagenesis. The serum IL-33 levels positively correlated with those of IL-10...
November 3, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29098000/pro-inflammatory-state-in-monoclonal-gammopathy-of-undetermined-significance-and-in-multiple-myeloma-is-characterized-by-low-sialylation-of-pathogen-specific-and-other-monoclonal-immunoglobulins
#17
Adrien Bosseboeuf, Sophie Allain-Maillet, Nicolas Mennesson, Anne Tallet, Cédric Rossi, Laurent Garderet, Denis Caillot, Philippe Moreau, Eric Piver, François Girodon, Hélène Perreault, Sophie Brouard, Arnaud Nicot, Edith Bigot-Corbel, Sylvie Hermouet, Jean Harb
Multiple myeloma (MM) and its pre-cancerous stage monoclonal gammopathy of undetermined significance (MGUS) allow to study immune responses and the chronology of inflammation in the context of blood malignancies. Both diseases are characterized by the production of a monoclonal immunoglobulin (mc Ig) which for subsets of MGUS and MM patients targets pathogens known to cause latent infection, a major cause of inflammation. Inflammation may influence the structure of both polyclonal (pc) Ig and mc Ig produced by malignant plasma cells via the sialylation of Ig Fc fragment...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29095435/double-stranded-rna-released-from-damaged-articular-chondrocytes-promotes-cartilage-degeneration-via-toll-like-receptor-3-interleukin-33-pathway
#18
Changwei Li, Kaizhe Chen, Hui Kang, Yufei Yan, Kewei Liu, Changjun Guo, Jin Qi, Kai Yang, Fei Wang, Lei Guo, Chuan He, Lianfu Deng
Pattern recognition receptors (PRRs), including Toll-like receptor 3 (TLR3), are involved in arthritic responses; however, whether interleukin-33 (IL-33) is involved in TLR3-mediated cartilage degeneration is unknown. Here, we found that IL-33 was abundantly increased in chondrocytes of osteoarthritis, especially the chondrocytes of weight-bearing cartilage. Furthermore, double-stranded RNA (dsRNA) released from damaged articular chondrocytes induced by mechanical stretching upregulated IL-33 expression to a greater degree than IL-1β and tumor necrosis factor-α...
November 2, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29093264/secreted-pla2-group-x-orchestrates-innate-and-adaptive-immune-responses-to-inhaled-allergen
#19
James D Nolin, Ying Lai, Herbert Luke Ogden, Anne M Manicone, Ryan C Murphy, Dowon An, Charles W Frevert, Farideh Ghomashchi, Gajendra S Naika, Michael H Gelb, Gail M Gauvreau, Adrian M Piliponsky, William A Altemeier, Teal S Hallstrand
Phospholipase A2 (PLA2) enzymes regulate the formation of eicosanoids and lysophospholipids that contribute to allergic airway inflammation. Secreted PLA2 group X (sPLA2-X) was recently found to be increased in the airways of asthmatics and is highly expressed in airway epithelial cells and macrophages. In the current study, we show that allergen exposure increases sPLA2-X in humans and in mice, and that global deletion of Pla2g10 results in a marked reduction in airway hyperresponsiveness (AHR), eosinophil and T cell trafficking to the airways, airway occlusion, generation of type-2 cytokines by antigen-stimulated leukocytes, and antigen-specific immunoglobulins...
November 2, 2017: JCI Insight
https://www.readbyqxmd.com/read/29084017/antialarmins-for-treatment-of-asthma-future-perspectives
#20
Dhuha Al-Sajee, John-Paul Oliveria, Roma Sehmi, Gail M Gauvreau
PURPOSE OF REVIEW: Recent studies have highlighted the role of alarmins in asthma pathophysiology and tested the roles of these cytokines in asthmatic patients. This review will discuss the recent advances in the role of alarmins in asthma and the potential of future targeted therapies in asthma. RECENT FINDINGS: Epithelial-derived cytokines can be released upon exposure to external stimuli, causing damage to the epithelial barrier and resulting in tissue inflammation...
October 27, 2017: Current Opinion in Pulmonary Medicine
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