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https://www.readbyqxmd.com/read/29140280/trpv3-channel-in-keratinocytes-in-scars-with-post-burn-pruritus
#1
Chun Wook Park, Hyun Ji Kim, Yong Won Choi, Bo Young Chung, So-Youn Woo, Dong-Keun Song, Hye One Kim
Post-burn pruritus is a common and distressing sequela of burn scars. Empirical antipruritic treatments usually fail to have a satisfactory outcome because of their limited selectivity and possible side effects. Therefore, novel drug targets need to be identified. Here, we aimed to investigate the possible role of protease-activated receptor 2 (PAR2) and transient receptor potential vanniloid 3 (TRPV3), along with the relation of TRPV3 to thymic stromal lymphopoietin (TSLP). Specimens from normal (unscarred) or burn-scarred (with or without pruritus) tissue were obtained from burn patients for this study...
November 15, 2017: International Journal of Molecular Sciences
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
#2
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/29129581/eoe-genetic-susceptibility-is-mediated-by-synergistic-interactions-between-eoe-specific-and-general-atopic-disease-loci
#3
L J Martin, H He, M H Collins, J P Abonia, J M Biagini Myers, M Eby, H E Johansson, L C Kottyan, G K Khurana Hershey, M E Rothenberg
BACKGROUND: Eosinophilic esophagitis (EoE) is an esophageal inflammatory disease associated with atopic diseases. TSLP and CAPN14 genetic variation contribute to EoE, but how this relates to atopy is unclear. The purpose of this study was to explore the relationship between EoE, atopy and genetic risk. METHODS: EoE-atopy enrichment was tested using 700 EoE cases and 801 community controls. Probing 372 SNPs in 63 atopy-genes, we evaluated EoE associations using 412 non-atopic and 868 atopic disease controls...
November 9, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29124973/divergent-hypersensitivity-responses-following-topical-application-of-the-quaternary-ammonium-compound-didecyldimethylammonium-bromide
#4
Hillary L Shane, Ewa Lukomska, Aleksandr B Stefaniak, Stacey E Anderson
Didecyldimethylammonium bromide (DDAB) is a fourth generation dialkyl-quaternary ammonium compound (QAC) that is used in numerous products for its antimicrobial properties. While many QACs have been associated with allergic disease, the toxicity and sensitization of DDAB have not been thoroughly investigated. The purpose of these studies was to evaluate the irritancy and sensitization potential of DDAB following dermal application in a murine model. DDAB induced significant irritancy (0.0625-2%), evaluated by ear swelling in female BALB/c mice...
December 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/29116372/tumor-derived-high-mobility-group-box-1-and-thymic-stromal-lymphopoietin-are-involved-in-modulating-dendritic-cells-to-activate-t-regulatory-cells-in-a-mouse-model
#5
Yi Zhang, Zuqiang Liu, Xingxing Hao, Ang Li, Jiying Zhang, Cara D Carey, Louis D Falo, Zhaoyang You
High-mobility group box 1 (HMGB1) is involved in the tumor-associated activation of regulatory T cells (Treg), but the mechanisms remain unknown. In a mouse tumor model, silencing HMGB1 in tumor cells or inhibiting tumor-derived HMGB1 not only dampened the capacity of tumor cells to produce thymic stromal lymphopoietin (TSLP), but also aborted the tumor-associated modulation of Treg-activating DC. Tumor-derived HMGB1 triggered the production of TSLP by tumor cells. Importantly, both tumor-derived HMGB1 and TSLP were necessary for modulating DC to activate Treg in a TSLP receptor (TSLPR)-dependent manner...
November 7, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29114386/suppression-of-inflammation-and-tissue-damage-by-a-hookworm-recombinant-protein-in-experimental-colitis
#6
Ivana B Ferreira, Darren A Pickering, Sally Troy, John Croese, Alex Loukas, Severine Navarro
Gastrointestinal parasites, hookworms in particular, have evolved to cause minimal harm to their hosts when present in small numbers, allowing them to establish chronic infections for decades. They do so by creating an immunoregulatory environment that promotes their own survival, but paradoxically also benefits the host by protecting against the onset of many inflammatory diseases. To harness the therapeutic value of hookworms without using live parasites, we have examined the protective properties of the recombinant protein anti-inflammatory protein (AIP)-1, secreted in abundance by hookworms within the intestinal mucosa, in experimental colitis...
October 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/29111180/effects-of-kestose-on-gut-mucosal-immunity-in-an-atopic-dermatitis-mouse-model
#7
Ha-Jung Kim, Seung-Hwa Lee, Han-Na Go, Jae-Rin Ahn, Hye-Jung Kim, Soo-Jong Hong
BACKGROUND: Atopic dermatitis (AD) is recently increasing among populations, but the underlying mechanisms remain controversial. Interactions between the gut microbiota and mucosal immunity are considered to be a crucial etiology. Fructooligosaccharide (FOS), prebiotics have been reported as activators of the gut microbiota. OBJECTIVE: The aim of this study was to investigate the effects of kestose, the smallest FOS and FOS on atopic dermatitis in mice. METHODS: An AD mouse model was developed by (ovalbumin) epidermal sensitization using BALB/c mice...
October 18, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29109963/cytokine-profile-of-patients-with-allergic-rhinitis-caused-by-pollen-mite-and-microbial-allergen-sensitization
#8
Yury A Tyurin, Svetlana A Lissovskaya, Rustem S Fassahov, Ilshat G Mustafin, Anton F Shamsutdinov, Marina A Shilova, Albert A Rizvanov
Allergic rhinitis (AR) is especially prevalent among the population of large cities. Immunologically, the airway epithelium is a region where the population of allergen-presenting cells concentrates. These cells actively express a group of receptors of the innate immune system. A specific cytokine profile is its representation. The study was aimed at evaluating the cytokine profile in patients with seasonal and perennial allergic rhinitis. The cytokine profile of nasal secretion and blood serum of 44 patients with AR was studied...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29108965/interleukin-1-inhibitory-kappa-b-kinase-epsilon-induced-glycolysis-augment-epithelial-effector-function-and-promote-allergic-airways-disease
#9
Xi Qian, Reem Aboushousha, Cheryl van de Wetering, Shi B Chia, Eyal Amiel, Robert W Schneider, Jos Lj van der Velden, Karolyn G Lahue, Daisy A Hoagland, Dylan T Casey, Nirav Daphtary, Jennifer L Ather, Matthew J Randall, Minara Aliyeva, Kendall E Black, David G Chapman, Lennart K A Lundblad, David H McMillan, Anne E Dixon, Vikas Anathy, Charles G Irvin, Matthew E Poynter, Emiel F M Wouters, Pamela M Vacek, Monique Henket, Florence Schleich, Renaud Louis, Albert van der Vliet, Yvonne M W Janssen-Heininger
BACKGROUND: Emerging studies suggest that enhanced glycolysis accompanies inflammatory responses. Virtually nothing is known about the relevance of glycolysis in allergic asthma. OBJECTIVES: Here we sought to determine if glycolysis is altered in allergic asthma and to address its importance in the pathogenesis of allergic asthma. METHODS: We examined alterations in glycolysis in sputum samples from asthmatics and primary human nasal cells, and used murine models of allergic asthma as well as primary mouse tracheal epithelial cells to evaluate the relevance of glycolysis...
November 3, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29105092/ultraviolet-a-eye-irradiation-ameliorates-atopic-dermatitis-via-p53-and-clock-gene-proteins-in-nc-nga-mice
#10
Keiichi Hiramoto, Yurika Yamate, Satoshi Yokoyama
Atopic dermatitis (AD) is a widespread chronic skin condition that severely affects quality of life and can lead to more serious complications. Although ultraviolet (UV)A eye irradiation can exert various effects on the skin, it is unknown whether UVA can affect AD. To investigate potential associations, we used an NC/Nga mouse model of AD to study the effects of UVA eye irradiation. The eyes of mice were irradiated with a UVA dose of 100 kJ/m(2) using a FL20SBLB-A lamp. Our histological data demonstrated that AD symptoms could be ameliorated by UVA eye irradiation...
November 4, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29084017/antialarmins-for-treatment-of-asthma-future-perspectives
#11
Dhuha Al-Sajee, John-Paul Oliveria, Roma Sehmi, Gail M Gauvreau
PURPOSE OF REVIEW: Recent studies have highlighted the role of alarmins in asthma pathophysiology and tested the roles of these cytokines in asthmatic patients. This review will discuss the recent advances in the role of alarmins in asthma and the potential of future targeted therapies in asthma. RECENT FINDINGS: Epithelial-derived cytokines can be released upon exposure to external stimuli, causing damage to the epithelial barrier and resulting in tissue inflammation...
October 27, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29067997/il-33-promotes-gastrointestinal-allergy-in-a-tslp-independent-manner
#12
H Han, F Roan, L K Johnston, D E Smith, P J Bryce, S F Ziegler
This corrects the article DOI: 10.1038/jhh.2016.61.
October 25, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29047096/hypoxia-and-local-inflammation-in-pulmonary-artery-structure-and-function
#13
Michael Thompson, Rodney D Britt, Christina M Pabelick, Y S Prakash
Hypoxia is recognized as a contributor to pulmonary vascular diseases such as pulmonary hypertension. Hypoxia-induced inflammatory changes can enhance structural and functional changes in pulmonary artery (PA) in the context of PH. Accordingly, understanding how hypoxia and inflammation are linked in the context of pulmonary artery structure and function could be relevant towards development of novel therapies for PH. In this regard, factors such as thymic stromal lymphopoietin (TSLP), an inflammatory cytokine, and brain-derived neurotrophic factor (BDNF), a neurotrophin, have been found critical for nonvascular systems such as airway and asthma...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29031394/the-role-of-cysteinyl-leukotrienes-and-their-receptors-in-refractory-nasal-polyps
#14
Jintao Du, Luo Ba, Jiao Zhou, Lingyu Yu, Ruowu Liu, Jie Zhang, Feng Liu, Junming Xian, Shixi Liu, Yafeng Liu
Leukotriene signaling is essential in many diseases, including asthma, allergic rhinitis, atherosclerosis and inflammatory bowel disease. Nevertheless, the expression of cysteinyl leukotrienes (CysLTs) and its receptors (CYSLTRs) in different types of nasal polyps (NPs), and the role of their antagonist in the treatment of refractory chronic rhinosinusitis with nasal polyps (CRSwNP) are not well understood. The following study investigates the expression of CysLTs and CYSLTRs in different types of NPs, as well as the role of leukotriene receptor antagonist (montelukast) in refractory NPs...
November 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29029802/early-life-environmental-exposures-interact-with-genetic-susceptibility-variants-in-pediatric-patients-with-eosinophilic-esophagitis
#15
Elizabeth T Jensen, Jonathan T Kuhl, Lisa J Martin, Carl D Langefeld, Evan S Dellon, Marc E Rothenberg
BACKGROUND: Although eosinophilic esophagitis (EoE) is associated with certain gene variants, the rapidly increasing incidence of EoE suggests that environmental factors contribute to disease development. OBJECTIVE: We tested for gene-environment interaction between EoE-predisposing polymorphisms (within TSLP, LOC283710/KLF13, CAPN14, CCL26, and TGFB) and implicated early-life factors (antibiotic use in infancy, cesarean delivery, breast-feeding, neonatal intensive care unit [NICU] admission, and absence of pets in the home)...
September 12, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29024606/role-of-the-tslp-dc-ox40l-pathway-in-asthma-pathogenesis-and-airway-inflammation-in-mice
#16
Shuang Feng, Li Zhang, Xu-Hua Bian, Ying Luo, Guang-Hui Qin, Rui-Ming Shi
This study aims to explore the effect of the TSLP/DC/OX40L pathway in asthma pathogenesis and airway inflammation in mice. Sixty-five male BALF/c mice were divided into the control, asthma, IgG + asthma (IgG, 500 g/500 l, intratracheal injection of 50 l each time), LY294002 (OX40L inhibitor) + asthma (intratracheal injection of 2 mg/kg LY294002), and anti-TSLP + asthma (intratracheal injection of 500 ug/500 l TSLP antibody, 50 l each time) groups. ELISA was applied to measure the serum levels of IgE, ovalbumin (OVA)-sIgE, interleukin-4 (IL-4), IL-5, IL-13 and interferon-γ (IFN-γ), flow cytometry was employed to detect Treg cells and dendritic cell (DC) and lymphopoiesis...
October 12, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29017796/anti-inflammatory-effect-of-collagen-tripeptide-in-atopic-dermatitis
#17
Amiko Hakuta, Yukie Yamaguchi, Tomoko Okawa, Shoko Yamamoto, Yasuo Sakai, Michiko Aihara
BACKGROUND: Atopic dermatitis (AD) is a chronic, pruritic inflammatory skin disease in which type 2 allergic inflammation plays an important role. Collagen tripeptide (CTP) is a functional collagen fraction with a high content of Gly-X-Y tripeptides. OBJECTIVE: To examine the effect of CTP on inflammation in AD. METHODS: Levels of inflammatory cytokines and chemokines, such as thymus- and activation-regulated chemokine (TARC), macrophage-derived chemokine, and thymic stromal lymphopoietin (TSLP), were examined in human keratinocytes supplemented with or without CTP under AD-like inflammation...
September 28, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28972901/maternal-exposure-to-environmental-dehp-exacerbated-ova-induced-asthmatic-responses-in-rat-offspring
#18
Bohan Wang, Fangwei Liu, Jing Dong, Mingdan You, Yuanyuan Fu, Chao Li, Yiping Lu, Jie Chen
Di (ethylhexyl) phthalate (DEHP) is a commonly used phthalates (PAEs) compound as plasticizer and becomes a severe environmental pollutant worldwide. Studies show that DEHP, as an environmental endocrine disruptor, has potential adverse effects on human. Epidemiologic studies indicate that DEHP is positively correlated to allergic diseases. Maternal exposure to DEHP may contribute to the increasing incidence of allergic diseases in offspring. However, the role of DEHP and its detailed mechanism in allergic disease of the offspring are still unclear...
February 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28972433/thymic-stromal-lymphopoietin-contribution-to-the-recruitment-of-circulating-fibrocytes-to-the-lung-in-a-mouse-model-of-chronic-allergic-asthma
#19
Zhuang-Gui Chen, Ping Meng, Hong-Tao Li, Ming Li, Li-Fen Yang, Yan Yan, Ya-Ting Li, Xiao-Ling Zou, De-Yun Wang, Tian-Tuo Zhang
OBJECTIVE: Fibrocyte localization to the airways and thymic stromal lymphopoietin (TSLP) overexpression in the lung are features of severe asthma. The aim of this study was to determine whether TSLP contributes to fibrocyte trafficking and airway remodeling in a mouse model of allergic asthma. METHODS: We established a chronic asthma animal model by administering house dust mite (HDM) extracts intranasally for up to 5 consecutive weeks. Mouse anti-TSLP monoclonal antibody (mAb) was given intraperitoneally starting the 4(th) week...
October 3, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28967978/topical-glucose-induces-claudin-1-and-filaggrin-expression-in-a-mouse-model-of-atopic-dermatitis-and-in-keratinocyte-culture-exerting-anti-inflammatory-effects-by-repairing-skin-barrier-function
#20
Kiyoko Yamada, Kenji Matsushita, Wang Jingshu, Takuro Kanekura
Atopic dermatitis (AD) is a chronic inflammatory skin disease. Corticosteroids, which are widely used for AD treatment, have adverse effects, and alternative treatments are urgently needed. This study examined the effect of topical application of high-dose glucose on inflamed skin in a murine model of AD. High-dose glucose treatment on the ear reduced dermatitis scores and ear thicknesses in mite antigen-treated NC/Nga mice. The levels of thymus and activation-regulated chemokine (TARC), Th cytokines (interleukin (IL)-4, IL-5, IL-12, IL-13, and (interferon) IFN-γ), and IgE were decreased in the serum of high-dose glucose-treated mice...
October 2, 2017: Acta Dermato-venereologica
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