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Th2- type allergic diseases

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https://www.readbyqxmd.com/read/28410469/18%C3%AE-glycyrrhetinic-acid-the-major-bioactive-component-of-glycyrrhizae-radix-attenuates-airway-inflammation-by-modulating-th2-cytokines-gata-3-stat6-and-foxp3-transcription-factors-in-an-asthmatic-mouse-model
#1
Seung-Hyung Kim, Jung-Hee Hong, Ji-Eun Lee, Young-Cheol Lee
18β-Glycyrrhetinic acid (18Gly), the major bioactive component of Glycyrrhizae Radix, possesses anti-ulcerative, anti-inflammatory, and other pharmacological properties. Although 18Gly is associated with immunoregulatory functions of allergic diseases, the pathophysiological mechanisms of 18Gly action in allergic inflammatory lung disease have not been examined. Moreover, there are no in vivo studies on the anti-asthmatic effects of 18Gly in allergic asthma. We investigated its effect and mechanism of action in airway inflammation in a BALB/c mouse model of allergic asthma...
March 20, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28368013/structure-and-antagonism-of-the-receptor-complex-mediated-by-human-tslp-in-allergy-and-asthma
#2
Kenneth Verstraete, Frank Peelman, Harald Braun, Juan Lopez, Dries Van Rompaey, Ann Dansercoer, Isabel Vandenberghe, Kris Pauwels, Jan Tavernier, Bart N Lambrecht, Hamida Hammad, Hans De Winter, Rudi Beyaert, Guy Lippens, Savvas N Savvides
The pro-inflammatory cytokine thymic stromal lymphopoietin (TSLP) is pivotal to the pathophysiology of widespread allergic diseases mediated by type 2 helper T cell (Th2) responses, including asthma and atopic dermatitis. The emergence of human TSLP as a clinical target against asthma calls for maximally harnessing its therapeutic potential via structural and mechanistic considerations. Here we employ an integrative experimental approach focusing on productive and antagonized TSLP complexes and free cytokine...
April 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/28349869/modulation-of-regulatory-t-cells-by-intranasal-allergen-immunotherapy-in-an-experimental-rat-model-of-airway-allergy
#3
Saibal Moitra, Ankur Datta, Somnath Mondal, Iman Hazra, Sk Md Omar Faruk, Prasanta K Das, Anjan K Basu, Santanu K Tripathi, Swapna Chaudhuri
Allergic airway diseases such as asthma and allergic rhinitis are increasing in prevalence worldwide. The theory of an altered Th1/Th2 balance in allergic diathesis has recently been termed a "procrustean paradigm" as it failed to explain many preclinical findings. Regulatory T cells (Treg) have now been shown to be critical in T-cell homeostasis and in the maintenance of peripheral tolerance to allergens. Allergen specific immunotherapy (SIT) has been shown to induce regulatory T cells in allergic patients...
March 24, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28332107/mechanisms-driving-gender-differences-in-asthma
#4
REVIEW
Hubaida Fuseini, Dawn C Newcomb
PURPOSE OF REVIEW: Many phenotypes of asthma exist, ranging from mild asthma with onset during childhood to severe asthma with later onset, making asthma a broad disease with different pathologies. A gender disparity exists in asthma prevalence. As adults, women have an increased asthma prevalence compared to men. Further, women are more likely to have severe asthma and a later onset of asthma compared to men. Here, we review clinical and animal studies that have defined the role of sex hormones in airway inflammation, smooth muscle contraction, mucus production, and airway mechanics associated with asthma pathogenesis...
March 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28297747/enterococcus-faecium-fc-k-derived-from-kimchi-is-a-probiotc-lactic-acid-bacteria-that-shows-anti-allergic-activity
#5
Man-Kwang Rho, Young-Eun Kim, Hyun-In Rho, Tae-Rahk Kim, Yoon-Bum Kim, Won-Kyung Sung, Taw-Woo Kim, Dae-Ok Kim, Hee Kang
A rise in the occurrence of allergic diseases is attributed to the dysregulated balance of type 1/type 2 immunity, where type 2 T helper (Th2) cells predominate over type 1 T helper (Th1) cells, leading to an abnormally increased production of IgE in response to unharmful antigens. Kimchi, a traditional Korean fermented food, is a rich source of beneficial lactic acid bacteria. In this study, we investigated the ability of Enterococcus faecium FC-K derived from kimchi to induce type I immunity in the presence of Th2 polarizing conditions in vitro and in vivo...
March 15, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28275684/thymic-stromal-lymphopoietin-to-cut-a-long-story-short
#6
REVIEW
Katerina Tsilingiri, Giulia Fornasa, Maria Rescigno
Thymic stromal lymphopoietin (TSLP) was identified more than 20 years ago as a secreted factor of a mouse thymic stromal cell line; later, a human orthologue was also identified. The signaling pathway triggered by TSLP has been extensively studied, and upregulation of the cytokine itself is linked to the pathogenesis of numerous Th2-related diseases, including atopic dermatitis, asthma, allergic responses, as well as certain types of cancers. On the other hand, TSLP mediates several immune homeostatic functions in both the gut and the thymus...
March 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28216436/group-2-innate-lymphoid-cell-activation-in-the-neonatal-lung-drives-type-2-immunity-and-allergen-sensitization
#7
Catherine A Steer, Itziar Martinez-Gonzalez, Maryam Ghaedi, Patricia Allinger, Laura Mathä, Fumio Takei
Neonatal lung immunity is unique due to allergen-independent endogenous IL-33 mediated activation of group 2 innate lymphoid cells (ILC2s) that promote Th2 cell responses, making neonates prone to allergen sensitization and allergic lung diseases.
February 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28196763/il-33-dysregulates-regulatory-t-cells-and-impairs-established-immunologic-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 immunologic tolerance. A fundamental question remains: Why is airway tolerance compromised in patients with allergic airway diseases? IL-33 promotes innate and adaptive type 2 immunity and might provide the answer to this question. OBJECTIVE: The goal of this study was to investigate the roles played by IL-33 in altering regulatory T (Treg) cells in the lungs and in affecting previously established airway immunologic tolerance...
February 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28196762/enteric-helminth-induced-type-i-interferon-signaling-protects-against-pulmonary-virus-infection-through-interaction-with-the-microbiota
#9
Amanda J McFarlane, Henry J McSorley, Donald J Davidson, Paul M Fitch, Claire Errington, Karen J Mackenzie, Eva S Gollwitzer, Chris J C Johnston, Andrew S MacDonald, Michael R Edwards, Nicola L Harris, Benjamin J Marsland, Rick M Maizels, Jürgen Schwarze
BACKGROUND: Helminth parasites have been reported to have beneficial immunomodulatory effects in patients with allergic and autoimmune conditions and detrimental consequences in patients with tuberculosis and some viral infections. Their role in coinfection with respiratory viruses is not clear. OBJECTIVE: Here we investigated the effects of strictly enteric helminth infection with Heligmosomoides polygyrus on respiratory syncytial virus (RSV) infection in a mouse model...
February 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28188638/assessing-the-effect-of-5-hydroxymethylfurfuralon-on-selected-components-of-immune-responses-in-mice-immunized-with-ovalbumin
#10
Mohammad Alizadeh, Hamed Khodaei, Mehran Mesgari Abbasi, Sevda Saleh-Ghadimi
BACKGROUND: 5-hydroxymethylfurfural (5-HMF) is one of the most important products of the maillard reaction. In recent years, many profitable biological effects of this compound have been demonstrated. This study sought to elucidate the anti-allergic effect of 5-HMF by investigating some selected components of the immune response in BALB/c mice immunized with ovalbumin (OVA). RESULTS: Immunized animals had an increased level of serum total and OVA-specific antibodies when compared to the control (P < 0...
February 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28182643/ige-sensitization-to-inhalant-allergens-and-the-risk-of-airway-infection-and-disease-a-population-based-study
#11
Tea Skaaby, Lise Lotte Nystrup Husemoen, Betina Heinsbæk Thuesen, Runa Vavia Fenger, Allan Linneberg
BACKGROUND: Immunoglobulin E (IgE) sensitization, which is the propensity to develop IgE antibodies against common environmental allergens, is associated with a lymphocyte T-helper type 2 (Th2) skewed immune response and a high risk of allergic respiratory disease. Little is known about whether IgE sensitization confers an increased risk of respiratory infections in adults. We investigated the association between IgE sensitization and the incidence of acute airway infections, other infections and chronic lower airway disease events as recorded in nation-wide registries...
2017: PloS One
https://www.readbyqxmd.com/read/28160290/regulatory-t-cells-and-type-2-innate-lymphoid-cell-dependent-asthma
#12
REVIEW
J L Aron, O Akbari
Group 2 innate lymphoid cells (ILC2s) are a recently identified group of cells with the potent capability to produce Th2-type cytokines such as interleukin (IL)-5 and IL-13. Several studies suggest that ILC2s play an important role in the development of allergic diseases and asthma. Activation of pulmonary ILC2s in murine models lacking T and B cells induces eosinophilia and airway hyper-reactivity (AHR), which are cardinal features of asthma. More importantly, numerous recent studies have highlighted the role of ILC2s in asthma persistence and exacerbation among human subjects, and thus, regulation of pulmonary ILC2s is a major area of investigation aimed at curbing allergic lung inflammation and exacerbation...
February 4, 2017: Allergy
https://www.readbyqxmd.com/read/28132739/the-th2-polarizing-function-of-atopic-interleukin-17-receptor-b-positive-dendritic-cells-up-regulated-by-lipopolysaccharide
#13
Rui Zheng, Feng-Hong Chen, Wen-Xiang Gao, Dan Wang, Qin-Tai Yang, Kai Wang, Yin-Yan Lai, Jie Deng, Li-Jie Jiang, Yue-Qi Sun, Jian-Bo Shi
BACKGROUND: Recent studies suggest that epithelial cell (EC)-derived cytokines contribute to allergic airway disease exacerbation. OBJECTIVE: To confirm our hypothesis that atopic dendritic cells (DCs) are activated to up-regulate the receptors of cytokines that mainly derived from ECs and enhance TH2 responses. METHODS: The expressions of interleukin 17 receptor B (IL-17RB) (IL-25 receptor), membrane-bound ST2 (IL-33 receptor), thymic stromal lymphopoietin receptor (TSLPR), granulocyte-macrophage colony-stimulating factor receptor (GM-CSFR), and several functional markers on CD1c(+) monocyte-derived DCs (mo-DCs) were detected by flow cytometry...
April 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28121465/topical-application-of-the-anti-microbial-chemical-triclosan-induces-immunomodulatory-responses-through-the-s100a8-a9-tlr4-pathway
#14
Nikki B Marshall, Ewa Lukomska, Ajay P Nayak, Carrie M Long, Justin M Hettick, Stacey E Anderson
The anti-microbial compound triclosan is incorporated into numerous consumer products and is detectable in the urine of 75% of the general United States population. Recent epidemiological studies report positive associations with urinary triclosan levels and allergic disease. Although not sensitizing, earlier studies previously found that repeated topical application of triclosan augments the allergic response to ovalbumin (OVA) though a thymic stromal lymphopoietin (TSLP) pathway in mice. In the present study, early immunological effects following triclosan exposure were further evaluated following topical application in a murine model...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28120837/suggestive-association-between-variants-in-il1rapl-and-asthma-symptoms-in-latin-american-children
#15
Cintia Rodrigues Marques, Gustavo No Costa, Thiago Magalhães da Silva, Pablo Oliveira, Alvaro A Cruz, Neuza Maria Alcantara-Neves, Rosemeire L Fiaccone, Bernardo L Horta, Fernando Pires Hartwig, Esteban G Burchard, Maria Pino-Yanes, Laura C Rodrigues, Maria Fernanda Lima-Costa, Alexandre C Pereira, Mateus H Gouveia, Hanaisa P Sant Anna, Eduardo Tarazona-Santos, Maurício Lima Barreto, Camila Alexandrina Figueiredo
Several genome-wide association studies have been conducted to investigate the influence of genetic polymorphisms in the development of allergic diseases, but few of them have included the X chromosome. The aim of present study was to perform an X chromosome-wide association study (X-WAS) for asthma symptoms. The study included 1307 children of which 294 were asthma cases. DNA was genotyped using 2.5 HumanOmni Beadchip from Illumina. Statistical analyses were performed in PLINK 1.9, MACH 1.0 and Minimac2. The variant rs12007907 (g...
January 25, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28106273/the-immunoglobulin-superfamily-member-cd200r-identifies-cells-involved-in-type-2-immune-responses
#16
Lars H Blom, Britta C Martel, Lau F Larsen, Camilla V Hansen, Malene P Christensen, Nanna Juel-Berg, Thomas Litman, Lars K Poulsen
BACKGROUND: The pathology of allergic diseases involves type 2 immune cells, such as Th2, ILC2, and basophils exerting their effect by production of IL-4, IL-5, and IL-13. However, surface receptors that are specifically expressed on type 2 immune cells are less well documented. The aim of this investigation was to identify surface markers associated with type 2 inflammation. METHODS: Naïve human CD4(+) T-cells were short-term activated in the presence or absence of IL-4, and analysed for expression of >300 cell-surface proteins...
January 20, 2017: Allergy
https://www.readbyqxmd.com/read/28102058/neonatal-immune-state-is-influenced-by-maternal-allergic-rhinitis-and-associated-with-regulatory-t-cells
#17
Lu Tan, Jing Ou, Zezhang Tao, Yonggang Kong, Yu Xu
PURPOSE: Maternal influences contribute to the origin of allergic diseases, but the mechanisms are not clear. The current literature prompted the role of epigenetics in the development of allergic diseases. We sought to investigate the roles of regulatory T (Treg) cells and Forkhead box p3 (Foxp3) DNA methylation in the process of maternal transmission of allergic rhinitis (AR) susceptibility. METHODS: BALB/c female mice (AR mother) were sensitized by intraperitoneal injection of Dermatophagoides pteronyssinus (Der p) 1 on day 1 and 7...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28093832/il-15-deficient-mice-develop-enhanced-allergic-responses-to-airway-allergen-exposure
#18
Clinton B Mathias, Craig M Schramm, Linda A Guernsey, Carol A Wu, Stephanie H Polukort, Jeffrey Rovatti, Jennifer Ser-Dolansky, Eric Secor, Sallie S Schneider, Roger S Thrall, Hector L Aguila
BACKGROUND: Interleukin-15 is a pleiotropic cytokine that is critical for the development and survival of multiple hematopoietic lineages. Mice lacking IL-15 have selective defects in populations of several pro-allergic immune cells including natural killer (NK) cells, NKT cells, and memory CD8(+) T cells. We therefore hypothesized that IL-15(-/-) mice will have reduced inflammatory responses during the development of allergic airway disease (AAD). OBJECTIVE: To determine whether IL-15(-/-) mice have attenuated allergic responses in a mouse model of AAD...
January 17, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28067304/weissella-cibaria-wikim28-ameliorates-atopic-dermatitis-like-skin-lesions-by-inducing-tolerogenic-dendritic-cells-and-regulatory-t-cells-in-balb-c-mice
#19
Seul Ki Lim, Min-Sung Kwon, Jieun Lee, Young Joon Oh, Ja-Young Jang, Jong-Hee Lee, Hae Woong Park, Young-Do Nam, Myung-Ji Seo, Seong Woon Roh, Hak-Jong Choi
The occurrence of atopic dermatitis (AD), a chronic inflammatory skin disease, has been increasing steadily in children and adults in recent decades. In this study, we evaluated the ability of the lactic acid bacterium Weissella cibaria WIKIM28 isolated from gatkimchi, a Korean fermented vegetable preparation made from mustard leaves, to suppress the development of AD induced by 2,4-dinitrochlorobenzene in a murine model. Oral administration of W. cibaria WIKIM28 reduced AD-like skin lesions, epidermal thickening, and serum immunoglobulin E levels...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28066896/parasite-excretory-secretory-products-and-their-effects-on-metabolic-syndrome
#20
REVIEW
J Crowe, F E Lumb, M M Harnett, W Harnett
Obesity, one of the main causes of metabolic syndrome (MetS), is an increasingly common health and economic problem worldwide, and one of the major risk factors for developing type 2 diabetes and cardiovascular disease. Chronic, low-grade inflammation is associated with MetS and obesity. A dominant type 2/anti-inflammatory response is required for metabolic homoeostasis within adipose tissue: during obesity, this response is replaced by infiltrating, inflammatory macrophages and T cells. Helminths and certain protozoan parasites are able to manipulate the host immune response towards a TH2 immune phenotype that is beneficial for their survival, and there is emerging data that there is an inverse correlation between the incidence of MetS and helminth infections, suggesting that, as with autoimmune and allergic diseases, helminths may play a protective role against MetS disease...
January 9, 2017: Parasite Immunology
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