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IL-33 ST2

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https://www.readbyqxmd.com/read/28427965/t1-st2-deficient-mice-display-protection-against-leishmania-infantum-experimental-infection
#1
Khalid Eltahir Khalid, Manuela Sales, Laís Sacramento, Diego L Costa, Djalma de Souza, Vanessa Carregaro, Joao Santana da Silva
T1/ST2 is a surface marker selectively expressed on type 2 helper (TH2) effector cells. As Leishmania infection in susceptible BALB/c mice have ascribed to a polarized TH2 response, this study aim to investigate the T1/ST2 (the receptor for IL-33), as a typical TH2 marker in the postulation that a shift towards a beneficial TH1 response would occur in the absence of ST2. For this, ST2 knockout (ST2(-/-)) and WT BALB/c mice were experimentally infected in the retro-orbital sinus with L. infantum. We showed that ST2(-/-) animals displayed better control of parasite burden in both spleen and liver tissues at different time points of chronic phases, and reduced spleenomegaly and hepatomegaly compared with the wild-type (WT) mice...
April 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28422515/allergen-induced-increases-in-sputum-levels-of-group-2-innate-lymphoid-cells-in-asthmatic-subjects
#2
Ruchong Chen, Steven G Smith, Brittany Salter, Amani El-Gammal, John Paul Oliveria, Caitlin Obminski, Rick Watson, Paul M O'Byrne, Gail M Gauvreau, Roma Sehmi
RATIONALE: Group 2 innate lymphoid cells (ILC2), a major source of type 2 cytokines, initiate eosinophilic inflammatory responses in murine models of asthma. OBJECTIVES: Investigate the role of ILC2 in allergen-induced airway eosinophilic responses in atopic asthmatics. METHODS: Using a diluent-controlled allergen challenge cross-over study, where all subjects (n=10) developed allergen-induced early and late responses , airway eosinophilia and increased methacholine airway responsiveness, bone marrow, blood and sputum samples were collected pre- and post-inhalation challenge...
April 19, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28419818/local-group-2-innate-lymphoid-cells-promote-corneal-regeneration-after-epithelial-abrasion
#3
Jun Liu, Chengju Xiao, Hanqing Wang, Yunxia Xue, Dong Dong, Cuipei Lin, Fang Song, Ting Fu, Zhaorui Wang, Jiansu Chen, Hongwei Pan, Yangqiu Li, Dongqing Cai, Zhijie Li
Corneal injuries and infections are the leading cause of blindness worldwide. Thus, understanding the mechanisms that control healing of the damaged cornea is critical for the development of new therapies to promptly restore vision. Innate lymphoid cells (ILCs) are a recently identified heterogeneous cell population that has been reported to orchestrate immunity and promote tissue repair in the lungs and skin after injury. However, whether ILCs can modulate the repair process in the cornea remains poorly understood...
April 15, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28415811/il-33-st2-mediated-inflammation-in-macrophages-is-directly-abrogated-by-il-10-during-rheumatoid-arthritis
#4
Si Chen, Bingni Chen, Zhongyang Wen, Zhong Huang, Liang Ye
IL-10 is an immunosuppressive cytokine produced and sensed by many immune cells and exerts a protective role in autoimmune diseases. However, the underlying mechanism by which IL-10 contributes to prevent the arthritic inflammation in macrophages is poorly understood. Herein we report on a novel anti-arthritic property of IL-10 through the inhibition of IL-33 signaling by macrophages during collagen-induced arthritis (CIA) development. We show that IL-33 expression rather than its receptor (ST2) is positively correlated with IL-10 level in active RA...
March 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28404987/interleukin-33-regulates-intestinal-inflammation-by-modulating-macrophages-in-inflammatory-bowel-disease
#5
Dong Hyuk Seo, Xiumei Che, Min Seob Kwak, Soochan Kim, Jae Hyeon Kim, Hyun Woo Ma, Da Hye Kim, Tae Il Kim, Won Ho Kim, Seung Won Kim, Jae Hee Cheon
Interleukin 33 (IL-33) that signals through the ST2 receptor has emerged as a critical modulator in several inflammatory disorders, including inflammatory bowel disease (IBD). However, the precise mechanisms by which IL-33 modulates IBD are controversial. The aim of this study was thus to clarify the role of IL-33 in IBD. The plasma levels of IL-33 were significantly decreased, but soluble ST2 levels were increased in patients with IBD compared to healthy individuals. Moreover, IL-33 restored goblet cell numbers and induced macrophage switching from the M1 to the M2 phenotype...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28389473/st2-il-33-dependent-microglial-response-limits-acute-ischemic-brain-injury
#6
Yuanyuan Yang, Huan Liu, Haiyue Zhang, Qing Ye, Jianyi Wang, Boyu Yang, Leilei Mao, Wen Zhu, Rehana K Leak, Bo Xiao, Binfeng Lu, Jun Chen, Xiaoming Hu
ST2, a member of the interleukin 1 receptor family, and its ligand interleukin 33 (IL-33) play critical roles in immune regulation and inflammatory responses. This study explores the roles of endogenous IL-33/ST2 signaling in ischemic brain injury and elucidates the underlying mechanisms of action. The expression of IL-33 rapidly increased in oligodendrocytes and astrocytes after 60 min transient middle cerebral artery occlusion (tMCAO). ST2 receptor deficiency exacerbated brain infarction 3d after tMCAO as well as distal permanent MCAO...
April 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28387719/emerging-roles-of-il-33-st2-axis-in-renal-diseases
#7
REVIEW
Wei-Yu Chen, Lung-Chih Li, Jenq-Lin Yang
Renal diseases, including acute kidney injury (AKI) and chronic kidney disease (CKD), have a great impact on health care systems worldwide. Similar to cardiovascular diseases, renal diseases are inflammatory diseases involving a variety of cytokines. Primary causes of renal injury include ischemia, uremic toxins, bacteremia, or nephrotoxicity. Inflammation represents an important component following kidney injury. Interleukin (IL)-33 is a member of the IL-1 cytokine family, which is widely expressed in epithelial barrier tissues and endothelial cells, and mediates both tissue inflammation and repair responses...
April 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28383552/experimental-atopic-dermatitis-depends-on-il-33r-signaling-via-myd88-in-dendritic-cells
#8
Changwei Li, Isabelle Maillet, Claire Mackowiak, Camille Viala, Franco Di Padova, Mei Li, Dieudonnée Togbe, Valérie Quesniaux, Yuping Lai, Bernhard Ryffel
Atopic dermatitis (AD) is a chronic Th2 type inflammatory skin disorder. Here we report that MyD88 signaling is crucial in the pathogenesis of experimental AD induced by vitamin D3 analog MC903. The clinical signs and inflammation caused by MC903 are drastically reduced in MyD88(-/-) mice with diminished eosinophil, neutrophil infiltration and Th2 cytokine expression. The biological effect of interleukin-1 (IL-1) family members relies on MyD88 signaling. We observed a strong upregulation of IL-1 family cytokine expression, including IL-1α, IL-1β, IL-33, IL-18, IL-36α, IL-36β, IL-36γ and IL-36Ra...
April 6, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28381383/serum-soluble-st2-is-a-promising-prognostic-biomarker-in-hbv-related-acute-on-chronic-liver-failure
#9
Shao-Wen Jiang, Peng Wang, Xiao-Gang Xiang, Rui-Dong Mo, Lan-Yi Lin, Shi-San Bao, Jie Lu, Qing Xie
BACKGROUND: The IL-33/ST2 axis is involved in the pathogenesis of many diseases such as autoimmune diseases, cancer, and heart failure. However, studies of the IL-33/ST2 pathway in HBV-related acute-on-chronic liver failure (HBV-ACLF) are lacking. The present study aimed to determine the prognostic role of serum IL-33/soluble ST2 (sST2) in HBV-ACLF. METHODS: Serum levels of IL-33 and sST2 in healthy controls (HC, n=18), chronic hepatitis B (CHB, n=27) and HBV-ACLF (n=51) patients at the 1st and 4th week after enrollment were detected using ELISA, and clinical data were collected...
April 2017: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/28374774/il-33-contributes-to-sepsis-induced-long-term-immunosuppression-by-expanding-the-regulatory-t-cell-population
#10
Daniele C Nascimento, Paulo H Melo, Annie R Piñeros, Raphael G Ferreira, David F Colón, Paula B Donate, Fernanda V Castanheira, Aline Gozzi, Paula G Czaikoski, Wanda Niedbala, Marcos C Borges, Dario S Zamboni, Foo Y Liew, Fernando Q Cunha, Jose C Alves-Filho
Patients who survive sepsis can develop long-term immune dysfunction, with expansion of the regulatory T (Treg) cell population. However, how Treg cells proliferate in these patients is not clear. Here we show that IL-33 has a major function in the induction of this immunosuppression. Mice deficient in ST2 (IL-33R) develop attenuated immunosuppression in cases that survive sepsis, whereas treatment of naive wild-type mice with IL-33 induces immunosuppression. IL-33, released during tissue injury in sepsis, activates type 2 innate lymphoid cells, which promote polarization of M2 macrophages, thereby enhancing expansion of the Treg cell population via IL-10...
April 4, 2017: Nature Communications
https://www.readbyqxmd.com/read/28373582/chronic-fibro-inflammatory-responses-in-autoimmune-pancreatitis-depend-on-ifn-%C3%AE-and-il-33-produced-by-plasmacytoid-dendritic-cells
#11
Tomohiro Watanabe, Kouhei Yamashita, Yasuyuki Arai, Kosuke Minaga, Ken Kamata, Tomoyuki Nagai, Yoriaki Komeda, Mamoru Takenaka, Satoru Hagiwara, Hiroshi Ida, Toshiharu Sakurai, Naoshi Nishida, Warren Strober, Masatoshi Kudo
In previous studies, we found that human IgG4-related autoimmune pancreatitis (AIP) and murine AIP are driven by activation of plasmacytoid dendritic cells (pDCs) producing IFN-α. In the present studies we examined additional roles of pDC-related mechanisms in AIP pathogenesis, particularly those responsible for induction of fibrosis. We found that in murine AIP (MRL/Mp mice treated with polyinosinic-polycytidylic acid) not only the pancreatic infiltration of immune cells but also the development of fibrosis were markedly reduced by the depletion of pDCs or blockade of type I IFN signaling; moreover, such treatment was accompanied by a marked reduction of pancreatic expression of IL-33...
April 3, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28365573/serum-levels-of-interleukin-33-and-soluble-st2-are-associated-with-the-extent-of-disease-activity-and-cutaneous-manifestations-in-patients-with-active-adult-onset-still-s-disease
#12
Jae Ho Han, Chang-Hee Suh, Ju-Yang Jung, Mi-Hyun Ahn, Ji Eun Kwon, Hyunee Yim, Hyoun-Ah Kim
OBJECTIVE: Interleukin 33 (IL-33), a member of the IL-1 family and a ligand of the orphan receptor ST2, plays key roles in innate and adaptive immunity. We examined the associations between IL-33/ST2 levels and clinical manifestations of patients with active adult-onset Still's disease (AOSD). METHODS: Blood samples were collected from 40 patients with active AOSD, 28 patients with rheumatoid arthritis (RA), and 27 healthy controls (HC). The serum levels of IL-33 and soluble ST2 were determined using ELISA...
April 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28359899/il-33-st2-contributes-to-severe-symptoms-in-plasmodium-chabaudi-infected-balb-c-mice
#13
Takenori Seki, Kazushige Obata-Ninomiya, Rieko Shimogawara-Furushima, Toshio Arai, Nobuaki Akao, Tomoaki Hoshino, Nobuo Ohta
It has been reported that IL-33 contributes to potentiation of Th2 inflammatory diseases and protection against helminth infection. Increased plasma IL-33 levels have been observed in patients with severe falciparum malaria, however, the role of IL-33 in malaria remains unclear. Here we report that IL-33 enhances inflammatory responses in malaria infection. ST2-deficiency altered severity of inflammation in the liver and serum levels of pro-inflammatory cytokines such as TNF-α and IL-6, and IL-13 that is a Th2 cytokine during Plasmodium chabaudi infection...
March 27, 2017: Parasitology International
https://www.readbyqxmd.com/read/28355266/molecular-epidemiology-and-antimicrobial-susceptibility-of-clostridium-difficile-isolates-from-two-korean-hospitals
#14
Asiimwe Nicholas, Yu Kyung Kim, Won-Kil Lee, Gati Noble Selasi, Seok Hyeon Na, Hyo Il Kwon, Yoo Jeong Kim, Hae Sook Lee, Kyung Eun Song, Jeong Hwan Shin, Je Chul Lee
Clostridium difficile is one of the main etiological agents causing antibiotic-associated diarrhea. This study investigated the genetic diversity of 70 toxigenic C. difficile isolates from two Korean hospitals by employing toxinotyping, ribotyping, multilocus sequence typing (MLST), and pulsed-field gel electrophoresis (PFGE). Toxin gene amplification resulted in 68 A⁺B⁺ and two A-B+ isolates. Most isolates (95.7-100%) were susceptible to daptomycin, metronidazole, and vancomycin. Seventy C. difficile isolates were classified into five toxinotypes, 19 ribotypes, 16 sequence types (STs), and 33 arbitrary pulsotypes...
2017: PloS One
https://www.readbyqxmd.com/read/28341741/endogenous-prostaglandin-e2-amplifies-il-33-production-by-macrophages-through-an-e-prostanoid-ep-2-ep4-cyclic-camp-epac-dependent-pathway
#15
Sachin K Samuchiwal, Barbara Balestrieri, Hannah Raff, Joshua A Boyce
When activated through toll-like receptors (TLRs), macrophages generate interleukin-33 (IL-33), an IL-1 family member that induces innate immune responses through ST2 signaling. Lipopolysaccharide (LPS), a TLR4 ligand, induces macrophages to generate prostaglandin E2 (PGE2) through inducible cyclooxygenase (COX)-2 and microsomal PGE2 synthase-1 (mPGES-1) (1). We demonstrate that IL-33 production by bone marrow derived murine macrophages (bmMFs) requires the generation of endogenous PGE2 and the intrinsic expression of EP2 receptors to amplify NF-κB-dependent LPS-induced IL-33 expression via Exchange Protein Activated by cAMP (EPAC)...
March 24, 2017: Journal of Biological Chemistry
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
#16
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/28274612/effects-of-obesity-on-il-33-st2-system-in-heart-adipose-tissue-and-liver-study-in-the-experimental-model-of-zucker-rats
#17
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/28273074/a-rare-il33-loss-of-function-mutation-reduces-blood-eosinophil-counts-and-protects-from-asthma
#18
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 Ludviksdottir, 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 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28266165/il33-and-il1rl1-variants-are-associated-with-asthma-and-atopy-in-a-brazilian-population
#19
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/28262704/il-33-st2-immune-responses-to-respiratory-bacteria-in-pediatric-asthma
#20
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
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