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https://www.readbyqxmd.com/read/28229360/thyroid-hormone-acting-via-tr%C3%AE-induces-expression-of-browning-genes-in-mouse-bone-marrow-adipose-tissue
#1
Richard C Lindsey, Subburaman Mohan
PURPOSE: Mutant hypothyroid mouse models have recently shown that thyroid hormone is critical for skeletal development during an important prepubertal growth period. Additionally, thyroid hormone negatively regulates total body fat, consistent with the well-established effects of thyroid hormone on energy and fat metabolism. Since bone marrow mesenchymal stromal cells differentiate into both adipocytes and osteoblasts and a relationship between bone marrow adipogenesis and osteogenesis has been predicted, we hypothesized thyroid hormone deficiency during the postnatal growth period increases marrow adiposity in mice...
February 22, 2017: Endocrine
https://www.readbyqxmd.com/read/28222192/blastocystis-subtyping-and-its-association-with-intestinal-parasites-in-children-from-different-geographical-regions-of-colombia
#2
Juan David Ramírez, Carolina Flórez, Mario Olivera, María Consuelo Bernal, Julio Cesar Giraldo
Blastocystis is a common enteric protist colonizing probably more than 1 billion people with a large variety of non-human hosts. Remarkable genetic diversity has been observed, leading to the subdivision of the genus into multiple subtypes (ST), some of which are exclusively found in non-human hosts. The aim of this study was to determine the distribution of Blastocystis STs/18S alleles in symptomatic (abdominal pain, anal pruritus, diarrhea, headache, nauseas and/or vomit) and asymptomatic children from nine geographical regions of Colombia...
2017: PloS One
https://www.readbyqxmd.com/read/28214792/suppression-of-tumorigenicity-2-in-heart-failure-with-preserved-ejection-fraction
#3
Omar F AbouEzzeddine, Paul M McKie, Shannon M Dunlay, Susanna R Stevens, G Michael Felker, Barry A Borlaug, Horng H Chen, Russell P Tracy, Eugene Braunwald, Margaret M Redfield
BACKGROUND: Soluble suppression of tumorigenicity 2 (sST2) receptor is a biomarker that is elevated in certain systemic inflammatory diseases. Comorbidity-driven microvascular inflammation is postulated to play a key role in heart failure with preserved ejection fraction (HFpEF) pathophysiology, but data on how sST2 relates to clinical characteristics or inflammatory conditions or biomarkers in HFpEF are limited. We sought to determine circulating levels and clinical correlates of sST2 in HFpEF...
February 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28213973/transforming-growth-factor-%C3%AE-induces-bone-marrow-mesenchymal-stem-cell-migration-via-noncanonical-signals-and-n-cadherin
#4
Maria Jose Dubon, Jinyeong Yu, Sanghyuk Choi, Ki-Sook Park
Transforming growth factor-beta (TGF-β) induces the migration and mobilization of bone marrow-derived mesenchymal stem cells (BM-MSCs) to maintain bone homeostasis during bone remodeling and facilitate the repair of peripheral tissues. Although many studies have reported the mechanisms through which TGF-β mediates the migration of various types of cells, including cancer cells, the intrinsic cellular mechanisms underlying cellular migration and mobilization of BM-MSCs mediated by TGF-β are unclear. In this study, we showed that TGF-β activated noncanonical signaling molecules, such as Akt, extracellular signal-regulated kinase 1/2 (ERK1/2), focal adhesion kinase (FAK), and p38, via TGF-β type I receptor in human BM-MSCs and murine BM-MSC-like ST2 cells...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28205524/interleukin-33-produced-by-m2-macrophages-and-other-immune-cells-contributes-to-th2-immune-reaction-of-igg4-related-disease
#5
Sachiko Furukawa, Masafumi Moriyama, Kensuke Miyake, Hitoshi Nakashima, Akihiko Tanaka, Takashi Maehara, Mana Iizuka-Koga, Hiroto Tsuboi, Jun-Nosuke Hayashida, Noriko Ishiguro, Masaki Yamauchi, Takayuki Sumida, Seiji Nakamura
IgG4-related disease (IgG4-RD) is characterized by elevated serum IgG4 and marked infiltration of IgG4-positive cells in multiple organs. Interleukin-33 (IL-33) is a recently described cytokine that is secreted by damaged epithelial cells, macrophages, and dendritic cells, and potently activates helper T type 2 (Th2) immune responses, which have been suggested to play a major role in IgG4 production of IgG4-RD. Here, we assessed the expression of IL-33 and related molecules in the salivary glands (SGs) of patients with IgG4-RD versus that in patients with Sjögren's syndrome (SS) and controls...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28198366/th17-cells-express-st2-and-are-controlled-by-the-alarmin-il-33-in-the-small-intestine
#6
A Pascual-Reguant, J Bayat Sarmadi, C Baumann, R Noster, D Cirera-Salinas, C Curato, P Pelczar, S Huber, C E Zielinski, M Löhning, A E Hauser, E Esplugues
TH17 cells are major drivers of inflammation and involved in several autoimmune diseases. Tissue inflammation is a beneficial host response to infection, but it can also contribute to autoimmunity. The crosstalk between a tissue and the immune system during an inflammatory response is key for preserving tissue integrity and restoring physiological processes. However, how the inflamed tissue regulates the magnitude of an immune response by controlling pro-inflammatory T cells is not well characterized so far...
February 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28196875/a-signalling-cascade-of-il-33-to-il-13-regulates-metaplasia-in-the-mouse-stomach
#7
Christine P Petersen, Anne R Meyer, Carlo De Salvo, Eunyoung Choi, Cameron Schlegel, Alec Petersen, Amy C Engevik, Nripesh Prasad, Shawn E Levy, R Stokes Peebles, Theresa T Pizarro, James R Goldenring
OBJECTIVE: Alternatively activated macrophages (M2) are associated with the progression of spasmolytic polypeptide-expressing metaplasia (SPEM) in the stomach. However, the precise mechanism(s) and critical mediators that induce SPEM are unknown. DESIGN: To determine candidate genes important in these processes, macrophages from the stomach corpus of mice with SPEM (DMP-777-treated) or advanced SPEM (L635-treated) were isolated and RNA sequenced. Effects on metaplasia development after acute parietal cell loss induced by L635 were evaluated in interleukin (IL)-33, IL-33 receptor (ST2) and IL-13 knockout (KO) mice...
14, 2017: Gut
https://www.readbyqxmd.com/read/28196763/il-33-dysregulates-regulatory-t-treg-cells-and-impairs-established-immunological-tolerance-in-the-lungs
#8
Chien-Chang Chen, Takao Kobayashi, Koji Iijima, Fan-Chi Hsu, Hirohito Kita
BACKGROUND: Airway exposure to environmental antigens generally leads to immunological tolerance. A fundamental question remains: why is airway tolerance compromised in patients with allergic airway diseases? Interleukin (IL)-33 promotes innate and adaptive type 2 immunity and may provide the answer to this question. OBJECTIVE: The goal of this study was to investigate the roles IL-33 plays in altering regulatory T (Treg) cells in the lungs and in affecting previously established airway immunological tolerance...
February 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28194439/an-early-biomarker-algorithm-predicts-lethal-graft-versus-host-disease-and-survival
#9
Matthew J Hartwell, Umut Özbek, Ernst Holler, Anne S Renteria, Hannah Major-Monfried, Pavan Reddy, Mina Aziz, William J Hogan, Francis Ayuk, Yvonne A Efebera, Elizabeth O Hexner, Udomsak Bunworasate, Muna Qayed, Rainer Ordemann, Matthias Wölfl, Stephan Mielke, Attaphol Pawarode, Yi-Bin Chen, Steven Devine, Andrew C Harris, Madan Jagasia, Carrie L Kitko, Mark R Litzow, Nicolaus Kröger, Franco Locatelli, George Morales, Ryotaro Nakamura, Ran Reshef, Wolf Rösler, Daniela Weber, Kitsada Wudhikarn, Gregory A Yanik, John E Levine, James L M Ferrara
BACKGROUND. No laboratory test can predict the risk of nonrelapse mortality (NRM) or severe graft-versus-host disease (GVHD) after hematopoietic cellular transplantation (HCT) prior to the onset of GVHD symptoms. METHODS. Patient blood samples on day 7 after HCT were obtained from a multicenter set of 1,287 patients, and 620 samples were assigned to a training set. We measured the concentrations of 4 GVHD biomarkers (ST2, REG3α, TNFR1, and IL-2Rα) and used them to model 6-month NRM using rigorous cross-validation strategies to identify the best algorithm that defined 2 distinct risk groups...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28194023/interleukin-33-drives-hepatic-fibrosis-through-activation-of-hepatic-stellate-cells
#10
Zhongming Tan, Qianghui Liu, Runqiu Jiang, Long Lv, Siamak S Shoto, Isabelle Maillet, Valerie Quesniaux, Junwei Tang, Wenjie Zhang, Beicheng Sun, Bernhard Ryffel
Liver fibrosis is a consequence of chronic liver disease, causing morbidity and mortality. Interleukin-33 (IL-33) is a critical mediator of inflammation, which may be involved in the development of liver fibrosis. Here, we investigated the role of IL-33 in human patients and experimental bile-duct ligation (BDL)-induced fibrosis in mice. We report increased hepatic IL-33 expression in the murine BDL model of fibrosis and in surgical samples obtained from patients with liver fibrosis. Liver injury, inflammatory cell infiltration and fibrosis were reduced in the absence of the IL-33/ST2 receptor, and the activation of hepatic stellate cells (HSCs) was decreased in ST2-deficient mice...
February 13, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28176939/factors-associated-with-plasma-il-33-levels-in-patients-with-chronic-obstructive-pulmonary-disease
#11
Sei Won Kim, Chin Kook Rhee, Ki Uk Kim, Sang Haak Lee, Hun Gyu Hwang, Yu Il Kim, Deog Kyeom Kim, Sang Do Lee, Yeon-Mok Oh, Hyoung Kyu Yoon
BACKGROUND: Interleukin (IL)-33 promotes T helper (Th)2 immunity and systemic inflammation. The role of IL-33 in asthma has been widely investigated. IL-33 has also been suggested to play an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD). This study investigated the clinical significance and usefulness of plasma IL-33 level in patients with COPD. METHODS: A total of 307 patients with stable COPD from 15 centers, who were in the Korean Obstructive Lung Disease cohort, were enrolled in this study...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28174694/stat3-and-erk-pathways-are-involved-in-cell-growth-stimulation-of-the-st2-il1rl1-promoter
#12
Kenji Tago, Satoshi Ohta, Megumi Funakoshi-Tago, Chihiro Aoki-Ohmura, Jitsuhiro Matsugi, Shin-Ichi Tominaga, Ken Yanagisawa
The ST2 gene was originally identified as a primary responsive gene induced by stimulation with growth factors and by oncogenic stress. The ST2 gene harbors two distinct promoters - a distal promoter and a proximal promoter. In this study, we identified a novel type of serum-responsive element in the ST2 proximal promoter using reporter gene analysis; this element includes a possible responsive element for STAT family proteins. Indeed, enforced expression of constitutively active STAT3 activated this promoter element and induced the expression of ST2 gene products...
February 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28173811/marrow-adipocytes-inhibit-the-differentiation-of-mesenchymal-stem-cells-into-osteoblasts-via-suppressing-bmp-signaling
#13
Basem M Abdallah
BACKGROUND: Reduced bone formation is associated with increased bone marrow fat in many bone-loss related diseases including aging, post-menopause, and anorexia nervosa. Several lines of evidence suggested the regulation of osteogenesis and adipogenesis of the bone marrow-derived mesenchymal (skeletal) stem cells (BMSCs) by paracrine mediators. This study aimed to investigate the impact of adipocytes-secreted factors on the cell proliferation and osteoblast differentiation of BMSCs. METHODS: Serum free conditioned medium (CM-Adipo) was collected from stromal ST2 cells-derived adipocytes...
February 7, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28172971/p498-emerging-role-of-the-il-33-st2-axis-in-predicting-mucosal-response-to-anti-tnf-therapy-in-ulcerative-colitis
#14
L R Lopetuso, V Petito, C Graziani, D Scannone, F Scaldaferri, T T Pizarro, A Gasbarrini
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172456/op027-il-33-st2-axis-sustains-gut-mucosal-wound-healing-and-cancerogenesis-in-colitis-associated-colorectal-cancer
#15
L R Lopetuso, C De Salvo, L Di Martino, W Goodman, F Scaldaferri, A Gasbarrini, T T Pizarro
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28169287/il-10-producing-st2-expressing-foxp3-t-cells-in-multiple-sclerosis-brain-lesions
#16
Stephanie Elizabeth Johanna Zandee, Richard Anthony O'Connor, Iris Mair, Melanie Dawn Leech, Anna Williams, Stephen Mark Anderton
CD4(+)Foxp3(+) T regulatory (Treg) cells provide a key defence against inflammatory disease, but also have an ability to produce pro-inflammatory cytokines. The evidence for these two possibilities in multiple sclerosis (MS) is controversial. However, this has largely been based on studies of circulating Treg cells derived from peripheral blood, rather than the central nervous system. We show that Foxp3(+) cells in the brains of MS patients predominantly produce interleukin-10 (IL-10) and show high expression of the IL-33 receptor ST2 (associated with potent Treg function), indicating that Treg in the inflamed brain maintain their suppressive function...
February 7, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28168040/role-of-the-il-33-st2-axis-in-sepsis
#17
REVIEW
Hui Xu, Heth R Turnquist, Rosemary Hoffman, Timothy R Billiar
Sepsis remains a major clinical problem with high morbidity and mortality. As new inflammatory mediators are characterized, it is important to understand their roles in sepsis. Interleukin 33 (IL-33) is a recently described member of the IL-1 family that is widely expressed in cells of barrier tissues. Upon tissue damage, IL-33 is released as an alarmin and activates various types of cells of both the innate and adaptive immune system through binding to the ST2/IL-1 receptor accessory protein complex. IL-33 has apparent pleiotropic functions in many disease models, with its actions strongly shaped by the local microenvironment...
2017: Military Medical Research
https://www.readbyqxmd.com/read/28167596/epidemiology-and-prevalence-of-blastocystis-spp-in-north-cyprus
#18
Ayse Seyer, Djursun Karasartova, Emrah Ruh, Ayse Semra Güreser, Ebru Turgal, Turgut Imir, Aysegul Taylan Ozkan
This study was conducted to investigate the prevalence of Blastocystis spp. and its subtypes (STs) in North Cyprus; and to evaluate the presence of this parasite and its STs with respect to demographic, socioeconomic, and epidemiological factors, as well as gastrointestinal symptoms. Stool samples were collected from 230 volunteers. Each participant also filled out a questionnaire. The samples were examined microscopically by native-Lugol and trichrome methods and further tested by polymerase chain reaction (PCR) and sequencing...
February 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28164491/testing-for-soluble-st2-in-heart-failure-patients-reliability-of-a-point-of-care-method
#19
Damien Gruson, Benjamin Ferracin, Sylvie A Ahn, Michel F Rousseau
BACKGROUND: Our objective was to determine soluble ST2 (sST2) concentrations in heart failure (HF) patients with a point-of-care (POCT) assay. METHODS: sST2 levels were measured in 71 HF patients with both POCT and ELISA methods. The concentrations of sST2 were correlated to HF severity and to some established biomarkers of cardiovascular risk. RESULTS: sST2 levels measured with the ASPECT-PLUS POCT method were significantly correlated with the comparison ELISA assay (r = 0...
January 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28163317/embelin-attenuates-adipogenesis-and-lipogenesis-through-activating-canonical-wnt-signaling-and-inhibits-high-fat-diet-induced-obesity
#20
Y Gao, J Li, X Xu, S Wang, Y Yang, J Zhou, L Zhang, F Zheng, X Li, B Wang
BACKGROUND: Recent studies suggest that Embelin, a natural plant extract might have the potential to prevent body weight gain in rats. However, the mechanisms involved remain to be elucidated. METHODS: Effects of Embelin on adipocyte differentiation and lipogenesis were studied in murine ST2 stromal cells and C3H10T1/2 mesenchymal cells. The mechanisms through which Embelin regulates adipogenic differentiation and lipogenesis were explored. The in vivo anti-obesity effects of Embelin in high-fat diet (HFD)-induced obesity mice and possible transcriptional impact were investigated...
February 6, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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