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Mast cell tslp

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https://www.readbyqxmd.com/read/29193236/inhibitory-effect-of-naringenin-via-il-13-level-regulation-on-thymic-stromal-lymphopoietin-induced-inflammatory-reactions
#1
Na-Ra Han, Phil-Dong Moon, Ka-Jung Ryu, Na-Rae Kim, Hyung-Min Kim, Hyun-Ja Jeong
Naringenin (NG) has various beneficial properties, such as anti-cancer and anti-inflammatory effects. Thymic stromal lymphopoietin (TSLP) induces mast cell proliferation and inflammatory reactions. The aim of this study was to investigate the regulatory effect of NG on TSLP-induced mast cell proliferation and inflammatory reactions using human mast cell line (HMC-1) cells. HMC-1 cells were pre-treated with NG and then treated with TSLP. HMC-1 cells proliferation was determined by quantifying bromodeoxyuridine incorporation...
November 29, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29172841/anti-inflammatory-effects-of-artemisia-scoparia-and-its-active-constituent-3-5-dicaffeoyl-epi-quinic-acid-against-activated-mast-cells
#2
Sun-Young Nam, Na-Ra Han, So-Young Rah, Youngwan Seo, Hyung-Min Kim, Hyun-Ja Jeong
OBJECTIVES: Artemisia scoparia Waldst. et Kit. (AS) has been used to treat inflammation, urticaria and hepatitis. However, the scientific studies of AS and its active compound for inflammatory reactions in activated human mast cell line, HMC-1 cells have not yet been elucidated. MATERIALS AND METHODS: Here, we isolated 3,5-dicaffeoyl-epi-quinic acid (DEQA) from AS butanol fraction. The anti-inflammatory effect of AS and its new active compound, DEQA was examined in HMC-1 cells by studying the following markers: phorbol 12-myristate 13-acetate and calcium ionophore A23187 (PMACI)-induced thymic stromal lymphopoietin (TSLP), tumor necrosis factor (TNF)-α, interleukin (IL)-1β and IL-6 secretion and mRNA expression by ELISA and RT-PCR, respectively...
November 27, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29161660/molecular-mechanisms-of-anti-inflammatory-effect-of-chrysophanol-an-active-component-of-ast2017-01-on-atopic-dermatitis-in-vitro-models
#3
Hyun-Ja Jeong, Hee-Yun Kim, Hyung-Min Kim
AST2017-01 mainly consists of Rumex crispus and -Cordyceps militaris and has been widely consumed as an herbal medicine or functional food in Korea. Here we investigated the influences of AST2017-01 and its active component, chrysophanol on human mast cell (HMC-1 cell) and human keratinocyte (HaCaT cell)-mediated inflammatory reactions. Pretreatment with AST2017-01 or chrysophanol suppressed intracellular calcium levels and histamine release in phorbol 12-myristate 13-acetate and calcium ionophore A23187 (PMACI)-treated HMC-1 cells...
November 18, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29132961/title-experimental-asthma-persists-in-il33-receptor-knockout-mice-due-to-the-emergence-of-a-tslp-driven-il9-and-il13-ilc2-subpopulations
#4
Mukesh Verma, Sucai Liu, Lidia Michalec, Anand Sripada, Magdalena M Gorska, Rafeul Alam
BACKGROUND: IL33 plays an important role in development of experimental asthma. OBJECTIVE: To study the role of the IL33 receptor (ST2) in persistence of asthma in a mouse model. METHODS: We studied allergen-induced experimental asthma in ST2 knockout (KO) and wild-type control mice. We measured airway hyperresponsiveness (AHR) by flexivent, inflammatory indices by ELISA, histology and real-time PCR, and ILC2s in lung single cell preparations by flow cytometry...
November 10, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28833499/manifestation-of-atopic-dermatitis-like-skin-in-tncb-induced-nc-nga-mice-is-ameliorated-by-topical-treatment-of-substance-p-possibly-through-blockade-of-allergic-inflammation
#5
Hyeongwon Choi, Dong-Jin Kim, Seungwoo Nam, Sunki Lim, Jae-Sung Hwang, Ki Sook Park, Hyun Sook Hong, Min Kyung Shin, Eunkyung Chung, Youngsook Son
Atopic dermatitis (AD) is a chronic inflammatory skin disorder characterized by intense pruritus and eczematous lesion. In this study, topically applied substance P (SP) significantly alleviated AD-like clinical symptoms in 2, 4, 6-trinitrochlorobenzene (TNCB)-induced dermatitis in NC/Nga mice. This effect was nullified by pre-treatment of the neurokinin-1 receptor (NK-1R) antagonist CP99994. SP treatment significantly reduced the infiltration of mast cells and CD3-positive T cells as well as inflammatory cytokines, such as tumor necrosis factor-α (TNF-α) and thymic stromal lymphopoietin (TSLP), in AD-like skin lesions and decreased the levels of IgE and thymus and activation-regulated chemokine in serum...
August 20, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28815692/amelioration-of-atopic-like-skin-conditions-in-nc-tnd-mice-by-topical-application-with-distilled-alpinia-intermedia-gagnep-extracts
#6
Yosuke Amagai, Chihiro Katsuta, Yoshihiro Nomura, Kumiko Oida, Kenshiro Matsuda, Hyosun Jang, Ginnae Ahn, Tetsuyoshi Hamasaki, Hiroshi Matsuda, Akane Tanaka
Alpinia intermedia, a perennial plant that belongs to the Zingiberaceae family, has been used in folk medicine for a long time in the southern region of Japan. Because skin care is an effective approach that enables patients to manage their atopic dermatitis (AD), various herbal ingredients with few adverse effects have been evaluated for use in AD patients in recent years. In this study, we examined whether distilled extracts obtained from A. intermedia were beneficial for AD-like skin conditions in NC/Tnd mice...
August 16, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28757265/pathophysiology-of-eosinophilic-esophagitis
#7
Kelly M O'Shea, Seema S Aceves, Evan S Dellon, Sandeep K Gupta, Jonathan M Spergel, Glenn T Furuta, Marc E Rothenberg
Eosinophilic esophagitis (EoE) is an emerging disease that is distinguished from gastroesophageal reflux disease (GERD) by the expression of a unique esophageal transcriptome and the interplay of early life environmental factors with distinct genetic susceptibility elements at 5q22 (TSLP) and 2p23 (CAPN14). Rare genetic syndromes have uncovered the contribution of barrier disruption, mediated in part by defective desmosomes and dysregulated transforming factor beta (TGF-β) production and signaling, to EoE pathophysiology...
July 27, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28712126/evidence-of-an-abnormal-epithelial-barrier-in-active-untreated-and-corticosteroid-treated-eosinophilic-esophagitis
#8
D Simon, B Page, M Vogel, C Bussmann, C Blanchard, A Straumann, H-U Simon
BACKGROUND: Eosinophilic esophagitis (EoE) is a chronic, immune/antigen-mediated disease characterized by symptoms related to esophageal dysfunction and an eosinophil-predominant inflammation. This study has aimed to investigate whether the recently observed sensitization to Candida albicans in patients with EoE is owing to pre-existing disease and its underlying abnormal epithelial barrier or, alternatively, is linked to corticosteroid (CS) therapy. METHODS: Medical histories, as well as serum and tissue samples of 60 patients with EoE (15 CS naive, 45 with current or previous CS therapy) and 20 controls, stored in the Swiss Eosinophilic Esophagitis Database (SEED) and Biobank, were analyzed...
July 16, 2017: Allergy
https://www.readbyqxmd.com/read/28694089/the-potential-protective-role-of-taurine-against-experimental-allergic-inflammation
#9
Sun-Young Nam, Hyung-Min Kim, Hyun-Ja Jeong
AIMS: Taurine has been widely evaluated as a potential therapeutic agent in chronic inflammatory disorders and various infections. However, the potential role of taurine in regulating allergic inflammatory responses is currently unknown. MATERIALS AND METHODS: The present study was designed to evaluate the in vitro effects of taurine on the levels of thymic stromal lymphopoietin (TSLP) and other pro-inflammatory cytokines and activation of caspase-1 and nuclear factor (NF)-κB as well as the phosphorylations of c-Jun N-terminal kinase (JNK) and p38 in phorbol 12-myristate 13-acetate and calcium ionophore A23187 (PMACI)-triggered human mast cell line, HMC-1 cells...
September 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28681919/interleukin-9-over-expression-and-t-helper-9-polarization-in-systemic-sclerosis-patients
#10
G Guggino, M Lo Pizzo, D Di Liberto, A Rizzo, P Cipriani, P Ruscitti, G Candore, C M Gambino, G Sireci, F Dieli, R Giacomelli, G Triolo, F Ciccia
T helper 9 (Th9) cells and interleukin (IL)-9 are involved in the pathogenesis of several autoimmune diseases. The exact role of IL-9 and Th9 cells in patients with systemic sclerosis (SSc) have not yet been studied adequately. IL-9, IL-9R, transcription factor PU.1 (PU.1), IL-4, thymic stromal lymphopoietin (TSLP) and transforming growth factor (TGF)-β expression were assessed in skin and kidney biopsies of SSc patients and healthy controls (HC) by immunohistochemistry (IHC). The cellular source of IL-9 was also analysed by confocal microscopy analysis...
November 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28658559/innate-and-adaptive-type-2-immunity-in-lung-allergic-inflammation
#11
REVIEW
Masato Kubo
Allergic inflammation is a type 2 immune disorder classically characterized by high levels of immunoglobulin E (IgE) and the development of Th2 cells. Asthma is a pulmonary allergic inflammatory disease resulting in bronchial hyper-reactivity. Atopic asthma is defined by IgE antibody-mediated mast cell degranulation, while in non-atopic asthma there is no allergen-specific IgE and more involvement of innate immune cells, such as basophils, group 2 innate lymphoid cells (ILC2), and eosinophils. Recently, protease allergens were shown to cause asthmatic responses in the absence of Th2 cells, suggesting that an innate cell network (IL-33/TSLP-basophil-ILC2-IL-5/IL-13 axis) can facilitate the sensitization phase of type 2 inflammatory responses...
July 2017: Immunological Reviews
https://www.readbyqxmd.com/read/28652400/activation-of-human-basophils-by-a549-lung-epithelial-cells-reveals-a-novel-ige-dependent-response-independent-of-allergen
#12
John T Schroeder, Anja P Bieneman
Evidence for epithelial cell (EC)-derived cytokines (e.g., thymic stromal lymphopoietin [TSLP]) activating human basophils remains controversial. We therefore hypothesize that ECs can directly activate basophils via cell-to-cell interaction. Basophils in medium alone or with IL-3 ± anti-IgE were coincubated with TSLP, IL-33, or IL-25. Analogous experiments cocultured basophils (1-72 h) directly with EC lines. Supernatants were tested for mediators and cytokines. Abs targeting receptors were tested for neutralizing effects...
August 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28552763/prevention-of-food-allergy-development-and-suppression-of-established-food-allergy-by-neutralization-of-thymic-stromal-lymphopoietin-il-25-and-il-33
#13
Marat V Khodoun, Sunil Tomar, Joel E Tocker, Yui Hsi Wang, Fred D Finkelman
BACKGROUND: Food allergy (FA) is an increasing problem that has no approved treatment. The pro-TH2 cytokines IL-25, IL-33, and thymic stromal lymphopoietin (TSLP) are associated with FA, and mAbs to these cytokines are reported to suppress murine FA development. OBJECTIVE: We sought to determine whether anti-pro-TH2 cytokine mAbs can block both FA maintenance and induction. METHODS: IgE-mediated FA was induced in BALB/c mice by oral gavage with medium-chain triglycerides (MCTs) plus egg white (EW) and was characterized by increased numbers of lamina propria TH2 cells, mast cells, and eosinophils, shock (hypothermia), mast cell degranulation (increased serum mouse mast cell protease 1), increased serum IgG1 anti-EW and IgE levels, and increased IL-4 and IL-13 secretion after MCT/EW challenge...
May 26, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28545868/ameliorative-effect-of-atractylenolide-iii-in-the-mast-cell-proliferation-induced-by-tslp
#14
Myoung-Schook Yoou, Sun-Young Nam, Mu Hyun Jin, So Young Lee, Mi-Sun Kim, Seok Seon Roh, In Hwa Choi, Nariyah Woo, SeokWon Lim, Dong Hyun Kim, Jae-Bum Jang, Hyung-Min Kim, Hyun-Ja Jeong
Atractylenolide III (ATL-III) is an active compound of Atractylodes lancea, which has been widely used for the treatment of cancer. Cancer is closely connected with inflammation, and many anti-inflammatory agents are also used to treat cancer. We investigated the influence of ATL-III on thymic stromal lymphopoietin (TSLP)-induced inflammatory reactions. Pretreatment with ATL-III suppressed murine double minute 2 levels and promoted p53 levels in TSLP-treated human mast cell, HMC-1 cells. Mast cell proliferation increased by TSLP or IL-3 stimulation was significantly decreased by ATL-III pretreatment...
May 22, 2017: Food and Chemical Toxicology
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/28240277/trpa1-mediated-aggravation-of-allergic-contact-dermatitis-induced-by-dinp-and-regulated-by-nf-%C3%AE%C2%BAb-activation
#16
Jun Kang, Yong Ding, Baizhan Li, Hong Liu, Xu Yang, Mingqing Chen
The possible pathogenic role and mechanism of Di-iso-nonyl phthalate (DINP) in allergic dermatitis is still controversial. This work has shown that oral exposure to DINP exacerbated allergic dermatitis tissue lesions in FITC-sensitized mice. The lesions was accompanied by an enhancement of TRPA1 expression and an increase in IgG1, IL-6 and IL-13 levels. This work also found that blocking TRPA1 by HC030031 effectively prevented the development of allergic dermatitis resulting from oral exposure to DINP and/or FITC-sensitized mice...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28219709/cordycepin-diminishes-thymic-stromal-lymphopoietin-induced-interleukin-13-production
#17
Myoung-Schook Yoou, Kyoung Wan Yoon, Youngjin Choi, Hyung-Min Kim, Hyun-Ja Jeong
Atopic dermatitis (AD) is known to aggravate by thymic stromal lymphopoietin (TSLP) and TSLP is also known to up-regulate mast cell proliferation via production of interleukin (IL)-13. Thus, we investigated whether cordycepin could regulate mast cell proliferation induced by TSLP in human mast cell line, HMC-1 cell. Cordycepin significantly diminished the production and mRNA of IL-13 through the down-regulation of phosphorylated-signal transducer and activation of transcription 6 in the TSLP-stimulated HMC-1 cells...
May 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28134765/dimerized-translationally-controlled-tumor-protein-binding-peptide-ameliorates-atopic-dermatitis-in-nc-nga-mice
#18
Xing-Hai Jin, Juhyeon Lim, Dong Hae Shin, Jeehye Maeng, Kyunglim Lee
Our previous study showed that dimerized translationally controlled tumor protein (dTCTP) plays a role in the pathogenesis of allergic diseases, such as asthma and allergic rhinitis. A 7-mer peptide, called dTCTP-binding peptide 2 (dTBP2), binds to dTCTP and inhibits its cytokine-like effects. We therefore examined the protective effects of dTBP2 in house dust mite-induced atopic dermatitis (AD)-like skin lesions in Nishiki-nezumi Cinnamon/Nagoya (NC/Nga) mice. We found that topical administration of dTBP2 significantly reduced the AD-like skin lesions formation and mast cell infiltration in NC/Nga mice, similarly to the response seen in the Protopic (tacrolimus)-treated group...
January 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28129681/effects-of-quercetin-treatment-on-epithelium-derived-cytokines-and-epithelial-cell-apoptosis-in-allergic-airway-inflammation-mice-model
#19
Sule Caglayan Sozmen, Meral Karaman, Serap Cilaker Micili, Sakine Isik, Alper Bagriyanik, Zeynep Arikan Ayyildiz, Nevin Uzuner, Ozden Anal, Ozkan Karaman
Quercetin is a dietary flavonoid which has anti-inflammatory effects. This study aimed to evaluate the influence of quercetin on histopathological aspects and airway epithelium in  allergic airway  inflammation mice model. Twenty-eight BALB/c mice were randomly divided into four groups: Group I (control), Group II (untreated mice with allergic airway inflammation), Group III (allergic airway inflammation quercetin-treated [16mg/kg/day]), Group IV (allergic airway inflammation dexamethasone-treated [1mg/kg/day])...
December 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28115217/cysteinyl-leukotriene-e4-activates-human-group-2-innate-lymphoid-cells-and-enhances-the-effect-of-prostaglandin-d2-and-epithelial-cytokines
#20
Maryam Salimi, Linda Stöger, Wei Liu, Simei Go, Ian Pavord, Paul Klenerman, Graham Ogg, Luzheng Xue
BACKGROUND: Group 2 innate lymphoid cells (ILC2s) are a potential innate source of type 2 cytokines in the pathogenesis of allergic conditions. Epithelial cytokines (IL-33, IL-25, and thymic stromal lymphopoietin [TSLP]) and mast cell mediators (prostaglandin D2 [PGD2]) are critical activators of ILC2s. Cysteinyl leukotrienes (cysLTs), including leukotriene (LT) C4, LTD4, and LTE4, are metabolites of arachidonic acid and mediate inflammatory responses. Their role in human ILC2s is still poorly understood...
October 2017: Journal of Allergy and Clinical Immunology
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