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IL-33 ST2

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https://www.readbyqxmd.com/read/28637021/dectin-1-signaling-inhibits-osteoclastogenesis-via-il-33-induced-inhibition-of-nfatc1
#1
Xiaoqing Zhu, Yinghua Zhao, Yuxue Jiang, Tianxue Qin, Jintong Chen, Xiao Chu, Qing Yi, Sujun Gao, Siqing Wang
Abnormal osteoclast activation contributes to osteolytic bone diseases (OBDs). It was reported that curdlan, an agonist of dectin-1, inhibits osteoclastogenesis. However, the underlying mechanisms are not fully elucidated. In this study, we found that curdlan potently inhibited RANKL-induced osteoclast differentiation and the resultant bone resorption. Curdlan inhibited the expression of nuclear factor of activated T-cells, cytoplasmic 1 (NFATc1), the key transcriptional factor for osteoclastogenesis. Notably, dectin-1 activation increased the expression of MafB, an inhibitor of NFATc1, and IL-33 in osteoclast precursors...
June 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28637011/mir-487b-mitigates-chronic-heart-failure-through-inhibition-of-the-il-33-st2-signaling-pathway
#2
En-Wei Wang, Xu-Sheng Jia, Chang-Wu Ruan, Zhi-Ru Ge
We investigated the effects of microRNA-587b (miR-487b) in a rat model of chronic heart failure (CHF). Wistar rats were assigned to 10 groups (n=8 per group). Expression of interleukin-33 (IL-33), somatostatin 2 (ST2), IL-6, and TNF-α was higher in the CHF group than the control group. In the CHF, negative control (NC) for si-IL-33, NC for miR-487b mimic, NC for miR-487b inhibitor, and miR-487b inhibitor + si IL-33 groups, as compared to the blank and sham groups: steroid binding protein (SBP), D binding protein (DBP), left ventricular systolic pressure (LVSP), ± dp/dtmax, and superoxide dismutase (SOD) were all lower; myocardial fibrosis, MDA, left ventricular end-diastolic pressure (LVEDP), myocardial apoptosis rate, IL-6, and TNF-α were all higher; levels of IL-33 and ST2 mRNA and protein were higher; and levels of miR-487b were lower...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28625489/diosmin-reduces-chronic-constriction-injury-induced-neuropathic-pain-in-mice
#3
Mariana M Bertozzi, Ana C Rossaneis, Victor Fattori, Daniela T Longhi-Balbinot, Andressa Freitas, Fernando Q Cunha, José C Alves-Filho, Thiago M Cunha, Rubia Casagrande, Waldiceu A Verri
Injury or dysfunction of somatosensory system induces a complex syndrome called neuropathic pain, which still needs adequate pharmacological control. The current pharmacological treatments were in part developed from natural compounds. Flavonoids are natural polyphenolic molecules presenting varied biological activities and low toxicity. The flavonoid diosmin is a safe compound with good tolerability and low toxicity. This study evaluated the antinociceptive effect of diosmin in the sciatic nerve chronic constriction injury (CCI)-induced neuropathic pain model...
June 15, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28623858/roles-of-st2-il-33-and-bnp-in-predicting-major-adverse-cardiovascular-events-in-acute-myocardial-infarction-after-percutaneous-coronary-intervention
#4
Yan-Peng Wang, Jian-Hua Wang, Xiao-Long Wang, Jun-Yi Liu, Fang-Yun Jiang, Xiao-Li Huang, Jing-Yu Hang, Wei Qin, Shi-Xin Ma, Jie Zhang, Min-Jie Yuan, Jing-Bo Li, Zhi-Gang Lu, Meng Wei
This study investigated roles of serum ST2, IL-33 and BNP in predicting major adverse cardiovascular events (MACEs) in acute myocardial infarction (AMI) after percutaneous coronary intervention (PCI). Blood samples were collected from the included AMI patients (n = 180) who underwent PCI. All patients were divided into the MACEs and MACEs-free groups. Enzyme-linked immunosorbent assay was performed to measure serum levels of ST2, IL-33 and BNP. Severity of coronary artery lesion was evaluated by Gensini score...
June 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28615106/-enhanced-ilc2-activity-contributes-to-metabolic-syndrome-multicomponent-aggregation-state-in-patients-with-type-2-diabetic-nephropathy
#5
Ping Lu, Yunyun Xu, Zhaoliang Su, Huaxi Xu
Objective To study the relationship between the activity of group II innate lymphoid cells (ILC2) in maintenance hemodialysis patients with type 2 diabetic nephropathy (DN) and metabolic syndrome (MS) multicomponent aggregation state. Methods The study enrolled 30 DN patients of stable condition treated with maintenance hemodialysis over 3 months, 30 newly diagnosed untreated type 2 diabetes patients and 30 healthy volunteers as controls. Real-time quantitative PCR (qRT-PCR) was used to detect the mRNA expression levels of retinoic acid receptor-related orphan receptor α (RORα), interleukin 17 receptor B (IL-17RB), IL-33 receptor T1/ST2, IL-5 and IL-13 in peripheral blood mononuclear cells (PBMCs)...
June 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28614418/il-33-and-st2-levels-in-chronic-kidney-disease-associations-with-inflammation-vascular-abnormalities-cardiovascular-events-and-survival
#6
Ozkan Gungor, Hilmi Umut Unal, Aydin Guclu, Mustafa Gezer, Tayfun Eyileten, Fatma Betül Guzel, Orcun Altunoren, Ertugrul Erken, Yusuf Oguz, Ismail Kocyigit, Mahmut Ilker Yilmaz
OBJECTIVE: Increased inflammation, associated with the increase in chronic kidney disease (CKD) stage, has a very important influence in vascular injury and cardiovascular diseases. In this study, we aimed to investigate the levels of IL-33 and ST2 in the different stages of CKD and to determine their effect on vascular damage and cardiovascular events (CVE). METHODS: This was an observational cohort study in which serum IL-33 and ST2 were obtained from 238 CKD (stages 1-5) patients...
2017: PloS One
https://www.readbyqxmd.com/read/28611297/endogenous-il-33-has-no-effect-on-the-progression-of-fibrosis-during-experimental-steatohepatitis
#7
Philippe Vasseur, Sarah Dion, Aveline Filliol, Valentine Genet, Catherine Lucas-Clerc, Girard Jean-Philippe, Christine Silvain, Jean-Claude Lecron, Claire Piquet-Pellorce, Michel Samson
Interleukin (IL)-33 has been recently reported to be strongly pro-fibrogenic in various models of liver disease. Our aim was to study the role of endogenous IL-33 in a diet-induced model of steatohepatitis. IL-33 deficient mice and wild type (WT) littermates received a high-fat diet (HFD), or a standard diet for 12 weeks. The HFD-induced steatohepatitis was associated with an upregulation of IL-33 transcripts and protein. An insulin tolerance test revealed lower systemic insulin sensitivity in IL-33-/-HFD mice than in WT-HFD mice...
June 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28553430/plasma-level-of-soluble-st2-in-chronically-infected-hiv-1-patients-with-suppressed-viremia
#8
Mehwish Younas, Christina Psomas, Vikram Mehraj, Renaud Cezar, Pierre Portales, Edouard Tuaillon, Adeline Guigues, Jacques Reynes, Pierre Corbeau, Jean-Pierre Routy
INTRODUCTION: Interleukin-33 (IL-33) is a cell damage-induced alarmin. The plasma concentration of suppression of tumorogenicity (sST2), a surrogate marker of IL-33 production, is a prognostic marker of cardiovascular disease. OBSERVATION: Recently, we reported that sST2 plasma levels were elevated in early HIV-1 infection and linked to markers of microbial translocation and of T cell activation. RESULTS: Here we show that it is not the case in patients with suppressed viremia...
2017: Open AIDS Journal
https://www.readbyqxmd.com/read/28541554/activation-of-group-2-innate-lymphoid-cells-exacerbates-and-confers-corticosteroid-resistance-to-mouse-nasal-type-2-inflammation
#9
Taiyo Morikawa, Ayumi Fukuoka, Kazufumi Matsushita, Koubun Yasuda, Naruhito Iwasaki, Shoko Akasaki, Shigeharu Fujieda, Tomohiro Yoshimoto
Both Th2 cells and group 2 innate lymphoid cells (ILC2s) contribute to allergic diseases. However, their exact role and relationship in nasal allergic disorders is unclear. In this study, we investigated the cooperation of Th2 cells and ILC2s in a mouse model of nasal allergic disorder. To differentially activate Th2 cells and/or ILC2s in nasal mucosa, mice were intranasally administered ovalbumin (OVA) antigen, papain, an ILC2-activator, or both for 2 weeks. Epithelial thickness and number of eosinophils in the nasal mucosa were evaluated at 24 hours after the final challenge...
May 25, 2017: International Immunology
https://www.readbyqxmd.com/read/28539382/il233-a-novel-il-2-and-il-33-hybrid-cytokine-ameliorates-renal-injury
#10
Marta E Stremska, Sheethal Jose, Vikram Sabapathy, Liping Huang, Amandeep Bajwa, Gilbert R Kinsey, Poonam R Sharma, Saleh Mohammad, Diane L Rosin, Mark D Okusa, Rahul Sharma
CD4(+)Foxp3(+) regulatory T cells (Tregs) protect the kidney during AKI. We previously found that IL-2, which is critical for Treg homeostasis, upregulates the IL-33 receptor (ST2) on CD4(+) T cells, thus we hypothesized that IL-2 and IL-33 cooperate to enhance Treg function. We found that a major subset of Tregs in mice express ST2, and coinjection of IL-2 and IL-33 increased the number of Tregs in lymphoid organs and protected mice from ischemia-reperfusion injury (IRI) more efficiently than either cytokine alone...
May 24, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28538175/extracellular-vesicles-from-a-helminth-parasite-suppress-macrophage-activation-and-constitute-an-effective-vaccine-for-protective-immunity
#11
Gillian Coakley, Jana L McCaskill, Jessica G Borger, Fabio Simbari, Elaine Robertson, Marissa Millar, Yvonne Harcus, Henry J McSorley, Rick M Maizels, Amy H Buck
Recent studies have demonstrated that many parasites release extracellular vesicles (EVs), yet little is known about the specific interactions of EVs with immune cells or their functions during infection. We show that EVs secreted by the gastrointestinal nematode Heligmosomoides polygyrus are internalized by macrophages and modulate their activation. EV internalization causes downregulation of type 1 and type 2 immune-response-associated molecules (IL-6 and TNF, and Ym1 and RELMα) and inhibits expression of the IL-33 receptor subunit ST2...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28532656/the-il-33-st2-axis-is-crucial-in-type-2-airway-responses-induced-by-the-staphylococcus-aureus-protease-spld
#12
Andrea R Teufelberger, Maria Nordengrün, Harald Braun, Tania Maes, Katrien De Grove, Gabriele Holtappels, Clara O'Brien, Sharen Provoost, Hamida Hammad, Amanda Gonçalves, Rudi Beyaert, Wim Declercq, Peter Vandenabeele, Dmitri V Krysko, Barbara M Bröker, Claus Bachert, Olga Krysko
BACKGROUND: Chronic airway inflammatory diseases such as chronic rhinosinusitis with nasal polyps and asthma showed increased nasal Staphylococcus aureus (S. aureus) colonization. Serine protease like protein D (SplD) and other closely related proteases secreted by S. aureus have recently been identified as inducers of allergic asthma in humans and mice but their mechanism of action is largely unknown. OBJECTIVE: We investigated the role of recombinant SplD in driving Th2-biased responses and IgE formation in a murine model of allergic asthma...
May 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28512632/understanding-interleukin-33-and-its-roles-in-eosinophil-development
#13
REVIEW
Laura K Johnston, Paul J Bryce
Over the last decade, significant interest in the contribution of three "epithelial-derived cytokines," such as thymic stromal lymphopoietin, interleukin 25, and interleukin 33 (IL-33), has developed. These cytokines have been strongly linked to the early events that occur during allergen exposures and how they contribute to the subsequent type 2 immune response. Of these three cytokines, IL-33 has proven particularly interesting because of the strong associations found between both it and its receptor, ST2, in several genome-wide association studies of allergic diseases...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28492698/il-33-stimulates-the-release-of-procoagulant-microvesicles-from-human-monocytes-and-differentially-increases-tissue-factor-in-human-monocyte-subsets
#14
Stefan Stojkovic, Åsa Thulin, Lena Hell, Barbara Thaler, Sabine Rauscher, Johanna Baumgartner, Marion Gröger, Cihan Ay, Svitlana Demyanets, Christoph Neumayer, Ihor Huk, Andreas Spittler, Kurt Huber, Johann Wojta, Agneta Siegbahn, Mikael Åberg
Monocytes and monocyte-derived microvesicles (MVs) are the main source of circulating tissue factor (TF). Increased monocyte TF expression and increased circulating levels of procoagulant MVs contribute to the formation of a prothrombotic state in patients with cardiovascular disease. Interleukin (IL)-33 is a pro-inflammatory cytokine involved in atherosclerosis and other inflammatory diseases, but its role in regulating thrombosis is still unclear. The aim of the present study was to investigate the effects of IL-33 on the procoagulant properties of human monocytes and monocyte-derived MVs...
May 11, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28490277/il-33-promotes-recruitment-of-microglia-macrophages-in-response-to-traumatic-brain-injury
#15
Grzegorz Wicher, Ulrika Wallenquist, Ying Lei, Mattias Enoksson, Xiaofei Li, Barbara Fuchs, Sami Abu Hamdeh, Niklas Marklund, Lars Hillered, Gunnar Nilsson, Karin Forsberg-Nilsson
Traumatic brain injury (TBI) is a devastating condition, often leading to life-long consequences for the patients. Even though modern neurointensive care has improved functional and cognitive outcomes, efficient pharmacological therapies are still lacking. Targeting peripherally derived, or resident inflammatory cells that are rapid responders to brain injury is promising, but complex, since the contribution of inflammation to exacerbation versus improved recovery varies with time after injury. The injury-induced inflammatory response is triggered by release of alarmins, and in the present study we asked if Interleukin-33 (IL-33), an injury-associated nuclear alarmin, is involved in TBI...
May 10, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28484466/the-st2-il-33-axis-in-immune-cells-during-inflammatory-diseases
#16
REVIEW
Brad Griesenauer, Sophie Paczesny
Il1rl1 (also known as ST2) is a member of the IL-1 superfamily, and its only known ligand is IL-33. ST2 exists in two forms as splice variants: a soluble form (sST2), which acts as a decoy receptor, sequesters free IL-33, and does not signal, and a membrane-bound form (ST2), which activates the MyD88/NF-κB signaling pathway to enhance mast cell, Th2, regulatory T cell (Treg), and innate lymphoid cell type 2 functions. sST2 levels are increased in patients with active inflammatory bowel disease, acute cardiac and small bowel transplant allograft rejection, colon and gastric cancers, gut mucosal damage during viral infection, pulmonary disease, heart disease, and graft-versus-host disease...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28461492/sp-and-il-33-together-markedly-enhance-tnf-synthesis-and-secretion-from-human-mast-cells-mediated-by-the-interaction-of-their-receptors
#17
Alexandra Taracanova, Mihail Alevizos, Anna Karagkouni, Zuiy Weng, Errol Norwitz, Pio Conti, Susan E Leeman, Theoharis C Theoharides
The peptide substance P (SP) and the cytokine tumor necrosis factor (TNF) have been implicated in inflammatory processes. Mast cells are recognized as important in inflammatory responses. Here, we report that IL-33 (30 ng/mL), a member of the IL-1 family of cytokines, administered in combination with SP (1 µM), markedly increase (by 1,000-fold) TNF gene expression in cultured human LAD2 and primary mast cells derived from umbilical cord blood. SP (0.01-1 μM) and IL-33 (1-100 ng/mL) in combination also greatly stimulate TNF secretion (by 4,500-fold)...
May 16, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28450225/ablation-il-33-gene-exacerbate-myocardial-remodeling-in-mice-with-heart-failure-induced-by-mechanical-stress
#18
Punniyakoti T Veeraveedu, Shoji Sanada, Keiji Okuda, Hai Ying Fu, Takashi Matsuzaki, Ryo Araki, Masaki Yamato, Koubun Yasuda, Yasushi Sakata, Tomohiro Yoshimoto, Tetsuo Minamino
BACKGROUND AND PURPOSE: ST2 is one of the interleukin (IL)-1 receptor family member comprising of membrane-bound (ST2L) and soluble (sST2) isoforms. Clinical trials have revealed that serum sST2 levels predict outcome in patient with myocardial infarction or chronic heart failure (HF). Meanwhile, we and others have reported that ablation of ST2 caused exaggerated cardiac remodeling in both ischemic and non-ischemic HF. Here, we tested whether IL-33, the ligand for ST2, protects myocardium against HF induced by mechanical overload using ligand specific knockout (IL-33(-/-)) mice...
April 24, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28448579/il-33-receptor-st2-regulates-the-cognitive-impairments-associated-with-experimental-cerebral-malaria
#19
Flora Reverchon, Stéphane Mortaud, Maëliss Sivoyon, Isabelle Maillet, Anthony Laugeray, Jennifer Palomo, Céline Montécot, Améziane Herzine, Sandra Meme, William Meme, François Erard, Bernhard Ryffel, Arnaud Menuet, Valérie F J Quesniaux
Cerebral malaria (CM) is associated with a high mortality rate and long-term neurocognitive impairment in survivors. The murine model of experimental cerebral malaria (ECM) induced by Plasmodium berghei ANKA (PbA)-infection reproduces several of these features. We reported recently increased levels of IL-33 protein in brain undergoing ECM and the involvement of IL-33/ST2 pathway in ECM development. Here we show that PbA-infection induced early short term and spatial memory defects, prior to blood brain barrier (BBB) disruption, in wild-type mice, while ST2-deficient mice did not develop cognitive defects...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28448566/il-33-st2-pathway-drives-regulatory-t-cell-dependent-suppression-of-liver-damage-upon-cytomegalovirus-infection
#20
Branka Popovic, Mijo Golemac, Jürgen Podlech, Jelena Zeleznjak, Lidija Bilic-Zulle, Miodrag L Lukic, Luka Cicin-Sain, Matthias J Reddehase, Tim Sparwasser, Astrid Krmpotic, Stipan Jonjic
Regulatory T (Treg) cells dampen an exaggerated immune response to viral infections in order to avoid immunopathology. Cytomegaloviruses (CMVs) are herpesviruses usually causing asymptomatic infection in immunocompetent hosts and induce strong cellular immunity which provides protection against CMV disease. It remains unclear how these persistent viruses manage to avoid induction of immunopathology not only during the acute infection but also during life-long persistence and virus reactivation. This may be due to numerous viral immunoevasion strategies used to specifically modulate immune responses but also induction of Treg cells by CMV infection...
April 2017: PLoS Pathogens
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