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Th17 IgE

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https://www.readbyqxmd.com/read/28629744/mannose-receptor-modulates-macrophage-polarization-and-allergic-inflammation-through-mir-511-3p
#1
Yufeng Zhou, Danh C Do, Faoud T Ishmael, Mario Leonardo Squadrito, Ho Man Tang, Ho Lam Tang, Man-Hsun Hsu, Lipeng Qiu, Changjun Li, Yongqing Zhang, Kevin G Becker, Mei Wan, Shau-Ku Huang, Peisong Gao
BACKGROUND: Mannose receptor (MRC1/CD206) has been suggested to mediate allergic sensitization and asthma to multiple glyco-allergens, including cockroach allergens. OBJECTIVE: Determine the existence of a protective mechanism through which MRC1 limits allergic inflammation through its intronic miR-511-3p. METHODS: We examined the MRC1-mediated cockroach allergen uptake by lung macrophages and lung inflammation using C57BL/6 wild-type (WT) and Mrc1(-/-) mice...
June 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28616446/treatment-with-anti-fc%C3%AE%C2%B5ri%C3%AE-antibody-exacerbates-eae-and-t-cell-immunity-against-myelin
#2
Silvia Musio, Massimo Costanza, Pietro Luigi Poliani, Elena Fontana, Manuela Cominelli, Gabriella Abolafio, Lawrence Steinman, Rosetta Pedotti
OBJECTIVE: To investigate the effects of targeting the high-affinity receptor for immunoglobulin E (FcεRI), that plays a central role in allergic responses and is constitutively expressed on mast cells and basophils, in clinical disease and autoimmune T-cell response in experimental MS. METHODS: Experimental autoimmune encephalomyelitis (EAE) was induced in C57BL/6 mice by immunization with myelin oligodendrocyte glycoprotein 35-55. Anti-FcεRI α-chain antibody was administered intraperitoneally...
May 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28601055/the-effect-of-lactobacillus-actobacillus-peptidoglycan-on-bovine-%C3%AE-lactoglobulin-sensitized-mice-via-tlr2-nf-%C3%AE%C2%BAb-pathway
#3
Ai-Li Li, Yi-Qio Sun, Peng Du, Xiang-Chen Meng, Ling Guo, Shuang Li, Chao Zhang
Our previous study reported that Lactobacillus acidophilus(L.acidophilus)  key laboratory of dairy science  (KLDS) 1.0738 had an effective impact on inhibiting β-lactoglobulin (β-lg) allergy. This study further investigated the anti-allergic activity of peptidoglycan (PGN) isolated from KLDS 1.0738. This study aimed to assess whether toll-like receptor 2 (TLR2)/NF-kappaB (NF-κB) signaling activated by PGN was responsible for reducing allergic inflammation.  Our data showed that administration of  L. acidophilus PGN inhibited IgE production and improved the Treg/Th17 balance toward a Treg response in a mouse model of β-lg allergy...
April 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28579902/polysaccharide-extracted-from-chinese-white-wax-scale-ameliorates-2-4-dinitrochlorobenzene-induced-atopic-dermatitis-like-symptoms-in-balb-c-mice
#4
Lin Lin, Yiwei Zhou, Huifang Li, Dejian Pang, Liyun Zhang, Xiao Lu, Zhengliang Chen, Xiaoshan Zhao, Daming Zuo, Ledong Sun
Atopic dermatitis (AD) is a common inflammatory skin disease with high rates of morbidity and is associated with erythema, pruritus, scaling of affected areas of skin. It is extremely important to introduce a therapeutic agent which has significant anti-inflammatory effect with less side-effect for treatment of AD. This study evaluated the effect of a natural compound from herbal extracts, the crude polysaccharide extracted from the white wax scale (CWPS), on AD-like mice. Repeated applications of 2,4-dinitrochlorobenzene (DNCB) were performed on ear and dorsal skin of BALB/c mice to induce AD-like symptoms and skin lesions...
May 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28531919/bupleurum-chinense-extract-ameliorates-an-ova-induced-murine-allergic-asthma-through-the-reduction-of-the-th2-and-th17-cytokines-production-by-inactivation-of-nf%C3%AE%C2%BAb-pathway
#5
Thi Tho Bui, Chun Hua Piao, Chang Ho Song, Hee Soon Shin, Ok Hee Chai
Bupleurum chinense belongs to the Bupleurum spp. family that has been used in traditional herbal medicine for over thousand years. It has been reported to have anti-inflammatory, anti-oxidant, hepato-protective, antipyretic, analgesic, anti-fibrotic and immunomodulatory effect. However, the effect of B. Chinense on allergic asthma remains unclear. This study investigated the immunomodulatory effects of B. Chinense extracts (BCE) on airway inflammation in asthmatic mice model. In the ovalbumin (OVA)-induced allergic asthma model, we evaluated the number of total cells, differential inflammatory cells and the production of proinflammatory cytokines in bronchoalveolar lavage fluid (BALF) and lung homogenate as well as histological structure...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531130/comparative-safety-and-efficacy-profile-of-a-novel-oil-in-water-vaccine-adjuvant-comprising-vitamins-a-and-e-and-a-catechin-in-protective-anti-influenza-immunity
#6
Sapna Patel, Yasser Faraj, Debra K Duso, William W Reiley, Erik A Karlsson, Stacey Schultz-Cherry, Michael Vajdy
Non-replicating vaccines, such as those based on recombinant proteins, require adjuvants and delivery systems, which have thus far depended on mimicking pathogen danger signals and strong pro-inflammatory responses. In search of a safer and more efficacious alternative, we tested whether vaccinations with influenza recombinant hemagglutinin (HA) mixed with a novel vegetable oil in water emulsion adjuvant (Natural Immune-enhancing Delivery System, NIDS), based on the immune-enhancing synergy of vitamins A and E and a catechin, could protect against intra-nasal challenge with live influenza virus...
May 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28479331/forkhead-box-protein-3-foxp3-demethylation-is-associated-with-tolerance-induction-in-peanut-induced-intestinal-allergy
#7
Meiqin Wang, Ivana V Yang, Elizabeth J Davidson, Anthony Joetham, Katsuyuki Takeda, Brian P O'Connor, Erwin W Gelfand
BACKGROUND: Regulatory T cells (Tregs) play an essential role in the maintenance of immune homeostasis in allergic diseases. OBJECTIVES: To define the mechanisms underlying induction of tolerance to peanut protein and prevention of the development of peanut allergy. METHODS: High or low doses of peanut extract (PE) were administered to pups every day for 2 weeks prior to peanut sensitization and challenge. Following challenge, symptoms, Treg numbers, FoxP3, Th2, Th17 cytokine and TGFβ expression in mesenteric lymph node (MLN) CD4(+) T cells and in jejunum were monitored...
May 4, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28442583/seletalisib-characterization-of-a-novel-potent-and-selective-inhibitor-of-pi3k%C3%AE
#8
Rodger A Allen, Daniel C Brookings, Mark J Powell, Jean Delgado, Lindsay K Shuttleworth, Mark Merriman, Ian J Fahy, Roohi Tewari, John P Silva, Louise J Healy, Gareth C G Davies, Breda Twomey, Rona M Cutler, Apoorva Kotian, Andrea Crosby, Gillian McCluskey, Gillian F Watt, Andrew Payne
Phosphoinositide 3-kinases (PI3K) are key signaling enzymes regulating cellular survival, development, and function. Expression of the PI3Kδ isoform is largely restricted to leukocytes and it plays a key role in immune cell development and function. Seletalisib is a novel small-molecule inhibitor of PI3Kδ that was evaluated in biochemical assays, cellular assays of adaptive and innate immunity, and an in vivo rat model of inflammation. Our findings show that seletalisib is a potent, ATP-competitive, and selective PI3Kδ inhibitor able to block protein kinase B (AKT) phosphorylation following activation of the B-cell receptor in a B-cell line...
June 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28430123/functional-analysis-of-the-rs774872314-rs116171003-rs200231898-and-rs201107751-polymorphisms-in-the-human-ror%C3%AE-t-gene-promoter-region
#9
Marcin Ratajewski, Marcin Słomka, Kaja Karaś, Marta Sobalska-Kwapis, Małgorzata Korycka-Machała, Anna Sałkowska, Jarosław Dziadek, Dominik Strapagiel, Jarosław Dastych
RAR-related orphan receptor gamma RORγT, a tissue-specific isoform of the RORC gene, plays a critical role in the development of naive CD4+ cells into fully differentiated Th17 lymphocytes. Th17 lymphocytes are part of the host defense against numerous pathogens and are also involved in the pathogenesis of inflammatory diseases, including autoimmune disorders. In this study, we functionally examined four naturally occurring polymorphisms located within one of the previously identified GC-boxes in the promoter region of the gene...
April 21, 2017: Genes
https://www.readbyqxmd.com/read/28428203/tslp-activated-dendritic-cells-induce-human-t-follicular-helper-cell-differentiation-through-ox40-ligand
#10
Lucia Pattarini, Coline Trichot, Sofia Bogiatzi, Maximilien Grandclaudon, Stephan Meller, Zela Keuylian, Melanie Durand, Elisabetta Volpe, Stefania Madonna, Andrea Cavani, Andrea Chiricozzi, Marco Romanelli, Toshiyuki Hori, Alain Hovnanian, Bernhard Homey, Vassili Soumelis
T follicular helper cells (Tfh) are important regulators of humoral responses. Human Tfh polarization pathways have been thus far associated with Th1 and Th17 polarization pathways. How human Tfh cells differentiate in Th2-skewed environments is unknown. We show that thymic stromal lymphopoietin (TSLP)-activated dendritic cells (DCs) promote human Tfh differentiation from naive CD4 T cells. We identified a novel population, distinct from Th2 cells, expressing IL-21 and TNF, suggestive of inflammatory cells...
May 1, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28423590/neutralization-of-interleukin-17-suppresses-allergic-rhinitis-symptoms-by-downregulating-th2-and-th17-responses-and-upregulating-the-treg-response
#11
Zhao Wei Gu, Yun Xiu Wang, Zhi Wei Cao
Allergic rhinitis (AR) has long been considered to predominantly involve the actions of Th2 cells, with relatively small contributions from Th1 cells. In recent years, the discovery of Th17 and regulatory T (Treg) cells has rendered the Th1/Th2 balance paradigm more complex and expanded our understanding of the pathogenesis of AR. IL-17, a key cytokine produced by Th17 cells, is known to induce allergen-specific Th2 cell activation, eosinophil and neutrophil accumulation, and serum IgE production in asthma; all of these features may play important roles in AR...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423239/a-novel-jak-inhibitor-jte-052-reduces-skin-inflammation-and-ameliorates-chronic-dermatitis-in-rodent-models-comparison-with-conventional-therapeutic-agents
#12
Atsuo Tanimoto, Yuichi Shinozaki, Yasuo Yamamoto, Yoshiaki Katsuda, Eriko Riya, Kaoru Toyoda, Kochi Kakimoto, Yukari Kimoto, Wataru Amano, Noriko Konishi, Mikio Hayashi
Janus kinases (JAKs) are required for several inflammatory cytokine signaling pathways and are implicated in the pathogenesis of chronic dermatitis, including atopic dermatitis and psoriasis. JAK inhibitors are therefore promising therapeutic candidates for chronic dermatitis. In this study, we evaluated the effects of the novel JAK inhibitor JTE-052 on inflammatory responses associated with chronic dermatitis, and compared its profile with those of conventional therapeutic agents in rodent models of chronic dermatitis...
April 19, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28396669/basophil-activation-dependent-autoantibody-and-interleukin-17-production-exacerbate-systemic-lupus-erythematosus
#13
Qingjun Pan, Li Gong, Haiyan Xiao, Yongmin Feng, Lu Li, Zhenzhen Deng, Ling Ye, Jian Zheng, Carol A Dickerson, Lin Ye, Ning An, Chen Yang, Hua-Feng Liu
OBJECTIVE: Autoantibody and inflammatory cytokines play crucial roles in the development of systemic lupus erythematosus (SLE); however, the regulation of their production warrants further investigation. This study aimed to investigate the role of basophil activation in the development of SLE based on studies in patients with SLE and spontaneous lupus-prone MRL-lpr/lpr mice. METHODS: The phenotypes of peripheral basophils and the production of autoantibody and interleukin (IL)-17 in patients with SLE were determined by flow cytometry and enzyme-linked immunosorbent assay, and also their correlations were investigated by statistical analysis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28293930/anti-interleukin-9-antibody-increases-the-effect-of-allergen-specific-immunotherapy-in-murine-allergic-rhinitis
#14
Ji Hyeon Shin, Do Hyun Kim, Boo Young Kim, Sung Won Kim, Se Hwan Hwang, Joohyung Lee, Soo Whan Kim
PURPOSE: Interleukin (IL)-9 induces allergic responses; however, the roles of anti-IL-9 antibody in the induction of tolerance remain unclear. This study investigated the effects of anti-IL-9 antibody on oral tolerance (OT) in a mouse model of allergic rhinitis (AR). METHODS: BALB/c mice were divided into 4 groups: the control, AR, OT, and OT with anti-IL-9 antibody (OT+IL9AB) groups. Ovalbumin (OVA) was used for sensitization and challenge. Mice in the OT and OT+IL9AB groups were fed OVA for immunotherapy...
May 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28263381/obesity-promotes-prolonged-ovalbumin-induced-airway-inflammation-modulating-t-helper-type-1-th1-th2-and-th17-immune-responses-in-balb-c-mice
#15
F M C Silva, E E Oliveira, A C C Gouveia, A S S Brugiolo, C C Alves, J O A Correa, J Gameiro, J Mattes, H C Teixeira, A P Ferreira
Clinical and epidemiological studies indicate that obesity affects the development and phenotype of asthma by inducing inflammatory mechanisms in addition to eosinophilic inflammation. The aim of this study was to assess the effect of obesity on allergic airway inflammation and T helper type 2 (Th2) immune responses using an experimental model of asthma in BALB/c mice. Mice fed a high-fat diet (HFD) for 10 weeks were sensitized and challenged with ovalbumin (OVA), and analyses were performed at 24 and 48 h after the last OVA challenge...
July 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28134325/basophil-derived-il-6-regulates-th17-cell-differentiation-and-cd4-t-cell-immunity
#16
Chae Min Yuk, Hyeung Ju Park, Bo-In Kwon, Sang Joon Lah, Jun Chang, Ji-Young Kim, Kyung-Mi Lee, Su-Hyung Park, Seokchan Hong, Seung-Hyo Lee
Basophils are rare, circulating granulocytes proposed to be involved in T helper (TH) type 2 immunity, mainly through secretion of interleukin (IL)-4. In addition to IL-4, basophils produce IL-6 and tumor necrosis factor (TNF)-α in response to immunoglobulin E (IgE) crosslinking. Differentiation of TH17 cells requires IL-6 and transforming growth factor (TGF)-β, but whether basophils play a significant role in TH17 induction is unknown. Here we show a role for basophils in TH17 cell development by using in vitro T cell differentiation and in vivo TH17-mediated inflammation models...
January 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28117118/intranasal-azelastine-and-mometasone-exhibit-a-synergistic-effect-on-a-murine-model-of-allergic-rhinitis
#17
Do Hyun Kim, Boo-Young Kim, Ji-Hyeon Shin, Sung Won Kim, Soo Whan Kim
PURPOSE: The purpose of this study was to compare the anti-allergic effects of the combination of azelastine and mometasone with those of either agent alone in a Dermatophagoides farinae (Derf)-induced murine model of allergic rhinitis (AR). MATERIALS AND METHODS: Forty BALB/c mice were divided into five groups: azelastine (A), mometasone (M), a combination of azelastine and mometasone (MA), Derf, and control. Derf served as the allergen. Allergic symptom scores, eosinophil counts, and serum Derf-specific IgE levels were measured...
March 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28063040/a-mouse-model-for-atopic-dermatitis-using-topical-application-of-vitamin-d3-or-of-its-analog-mc903
#18
Verena Moosbrugger-Martinz, Matthias Schmuth, Sandrine Dubrac
Atopic dermatitis (AD) is a chronic relapsing inflammatory skin disease with pruritus and high prevalence. Indeed, 15-30 % of children and 2-10 % of adults from industrialized countries are affected. Acute AD lesions are characterized by epidermal hyperplasia associated with a dominant Th2/Th17 immune response and dermal inflammatory infiltrates. Moreover, the expression of alarmins such as TSLP, IL-33, and IL-25 is upregulated in acute AD lesions. Topical application of vitamin D3 or of its low-calcemic analog MC903 induces changes in skin morphology and inflammation resembling immune perturbations observed in acute lesions of patients with AD...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27858144/th9-and-other-il-9-producing-cells-in-allergic-asthma
#19
REVIEW
Sonja Koch, Nina Sopel, Susetta Finotto
Allergic asthma is a worldwide increasing chronic disease of the airways which affects more than 300 million people. It is associated with increased IgE, mast cell activation, airway hyperresponsiveness (AHR), mucus overproduction and remodeling of the airways. Previously, this pathological trait has been associated with T helper type 2 (Th2) cells. Recently, different CD4(+) T cell subsets (Th17, Th9) as well as cells of innate immunity, like mast cells and innate lymphoid cells type 2 (ILC2s), which are all capable of producing the rediscovered cytokine IL-9, are known to contribute to this disease...
November 17, 2016: Seminars in Immunopathology
https://www.readbyqxmd.com/read/27643438/foxp3-tregs-require-wasp-to-restrain-th2-mediated-food-allergy
#20
Willem S Lexmond, Jeremy A Goettel, Jonathan J Lyons, Justin Jacobse, Marion M Deken, Monica G Lawrence, Thomas H DiMaggio, Daniel Kotlarz, Elizabeth Garabedian, Paul Sackstein, Celeste C Nelson, Nina Jones, Kelly D Stone, Fabio Candotti, Edmond H H M Rings, Adrian J Thrasher, Joshua D Milner, Scott B Snapper, Edda Fiebiger
In addition to the infectious consequences of immunodeficiency, patients with Wiskott-Aldrich syndrome (WAS) often suffer from poorly understood exaggerated immune responses that result in autoimmunity and elevated levels of serum IgE. Here, we have shown that WAS patients and mice deficient in WAS protein (WASP) frequently develop IgE-mediated reactions to common food allergens. WASP-deficient animals displayed an adjuvant-free IgE-sensitization to chow antigens that was most pronounced for wheat and soy and occurred under specific pathogen-free as well as germ-free housing conditions...
October 3, 2016: Journal of Clinical Investigation
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