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https://www.readbyqxmd.com/read/28431112/long-term-survival-of-the-mouse-es-cell-derived-mast-cell-medmc-brc6-in-mast-cell-deficient-kitw-sh-w-sh-mice
#1
Shohei Shibagaki, Satoko Tahara-Hanaoka, Takashi Hiroyama, Yukio Nakamura, Akira Shibuya
Mast cells (MCs) play pivotal roles in allergic reactions and the host defense against microbial infection through the immunoglobulin E (IgE)-dependent and IgE-independent signaling pathways. MC lines that can be analyzed both in vitro and in vivo would be useful for the study of MC-dependent immune responses. Here we investigated the functional characteristics of a mouse ES cell-derived mast cell-like cell line, MEDMC-BRC6. The cell line expressed FcεRI and c-Kit and showed degranulation and production of inflammatory cytokines and chemokine, including TNF-α, IL-6 and MCP-1, upon crosslinking FcεRI with IgE...
April 18, 2017: International Immunology
https://www.readbyqxmd.com/read/28430750/elevated-immune-response-among-children-4-years-of-age-with-pronounced-local-adverse-events-after-the-fifth-dtap-vaccination
#2
Saskia van der Lee, Jeanet M Kemmeren, Lia G H de Rond, Kemal Öztürk, Anneke Westerhof, Hester E de Melker, Elisabeth A M Sanders, Guy A M Berbers, Nicoline A T van der Maas, Hans C Rümke, Anne-Marie Buisman
BACKGROUND: In the Netherlands, acellular pertussis vaccines replaced the more reactogenic whole-cell pertussis vaccines. This replacement in the primary immunization schedule of infants coincided with a significant increase in pronounced local adverse events (AEs) in 4 years old children shortly after the administration of a fifth diphtheria, tetanus, acellular pertussis and inactivated polio (DTaP-IPV) vaccine. The objective of this study was to investigate possible differences in vaccine antigen-specific immune responses between children with and without a pronounced local AE after the fifth DTaP-IPV vaccination...
April 19, 2017: Pediatric Infectious Disease Journal
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
#3
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/28429307/emerging-approaches-to-food-desensitization-in-children
#4
REVIEW
Ahmad Hamad, Wesley A Burks
PURPOSE OF REVIEW: The purpose of this review is to highlight the recent advances in food desensitization in children with food allergy. RECENT FINDINGS: Recent advancements in epicutaneous, sublingual, and oral immunotherapy for food allergy in the future may offer children with food allergy and their families a viable option to reduce risk or severity of anaphylaxis with phase III trials ongoing for two of these treatment modalities. Food allergy prevalence in children is estimated to be up to 8%...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28429304/new-perspectives-on-the-diagnosis-of-allergy-to-anisakis-spp
#5
REVIEW
Ignacio Moneo, Noelia Carballeda-Sangiao, Miguel González-Muñoz
PURPOSE OF REVIEW: To compare the prevalence of sensitization in different countries based on specific IgE values and to evaluate the use of isolated native or recombinant allergens for diagnosis. RECENT FINDINGS: Isolated allergens help in the diagnosis of truly sensitized patients avoiding false positives due to cross-reactions. Their use is therefore highly recommended, especially when used as a combination of several relevant allergens. The use of purified allergens allows an accurate diagnosis and this has led to three important findings: (1) in addition to the digestive route of sensitization, occupational and non-digestive exposure seems to be clinically relevant...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28429303/natural-evolution-of-ige-responses-to-mite-allergens-and-relationship-to-progression-of-allergic-disease-a-review
#6
REVIEW
Daniela Posa, Stephanie Hofmaier, Stefania Arasi, Paolo Maria Matricardi
PURPOSE OF REVIEW: Allergenic molecules of the house dust mite (HDM) are crucially important indoor allergens, contributing to allergic rhinitis and asthma around the globe. In the past years, recombinant molecules for diagnostics opened new pathways to investigate individual sensitization profiles and new chances for the prevention and treatment of HDM allergy. This review summarizes the latest findings on the evolution of IgE responses towards mite allergens. RECENT FINDINGS: Several cross-sectional and longitudinal studies confirmed the role of Der p 1 and Der p 2 as major allergenic proteins of the HDM...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28428968/allergic-conjunctivitis-in-patients-with-respiratory-allergic-symptoms-a-retrospective-study-in-greece
#7
Pavlos Michailopoulos, Diamantis Almaliotis, Irini Georgiadou, Despina Papakosta, Kyriakos Gougoulias, Paschalina Giouleka, Dimitrios Gioulekas, Thomas Siempis, Vasileios Karampatakis
Here, we report on the prevalence of allergic conjunctivitis and positive skin prick test (SPT) results in relation to respiratory allergic conditions among patients with symptoms of allergies at a respiratory outpatient clinic. A questionnaire survey of symptoms (i.e., asthma-like, rhinitis, and conjunctivitis symptoms) involving 1522 patients was carried out. The responses of 1242 patients indicated that they had allergic conjunctivitis, asthma, rhinitis, or a combination of these conditions, and 869 of these patients underwent SPTs that assessed responses to 40 allergens...
2017: Medical Hypothesis, Discovery and Innovation in Ophthalmology
https://www.readbyqxmd.com/read/28428890/asthma-in-the-elderly-a-double-blind-placebo-controlled-study-of-the-effect-of-montelukast
#8
Michele Columbo
BACKGROUND: Little is known about asthma in the elderly as most studies of this condition have not included this patient group. It is unclear whether leukotriene antagonists benefit older asthmatics. We studied the effect of adding montelukast to the asthma treatment of elderly subjects. METHODS: Twenty-five subjects 65 years old and older with asthma were evaluated at week 0, 1, 5, 9, 13, and 17. Each subject received montelukast 10 mg and placebo each for 8 weeks in a cross-over design...
2017: Asthma research and practice
https://www.readbyqxmd.com/read/28428802/regulation-of-th2-responses-by-different-cell-types-expressing-the-interleukin-31-receptor
#9
Saburo Saito, Ayana Aoki, Iwao Arai, Shinya Takaishi, Haruyasu Ito, Nobutake Akiyama, Hiroshi Kiyonari
BACKGROUND: Interleukin-31 (IL-31) is a recently identified cytokine produced by Th2 cells that is involved in the development of atopic dermatitis-induced skin inflammation and pruritus. Its receptor, IL-31RA, is expressed by a number of cell types, including epithelial cells, eosinophils, and activated monocytes and macrophages. To date, however, the regulation of Th2 responses by distinct cell types and tissues expressing IL-31RA has not been well studied. METHODS: In this study, Cry j 2, one of the major allergens of Japanese cedar pollen, was administered to IL-31RA-deficient or wild-type (WT) mice via nasal or intraperitoneal injection for induction of specific Th2 responses...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28428721/proposed-criteria-to-differentiate-heterogeneous-eosinophilic-gastrointestinal-disorders-of-the-esophagus-including-eosinophilic-esophageal-myositis
#10
Hiroki Sato, Nao Nakajima, Kazuya Takahashi, Go Hasegawa, Ken-Ichi Mizuno, Satoru Hashimoto, Satoshi Ikarashi, Kazunao Hayashi, Yutaka Honda, Junji Yokoyama, Yuichi Sato, Shuji Terai
AIM: To define clinical criteria to differentiate eosinophilic gastrointestinal disorder (EoGD) in the esophagus. METHODS: Our criteria were defined based on the analyses of the clinical presentation of eosinophilic esophagitis (EoE), subepithelial eosinophilic esophagitis (sEoE) and eosinophilic esophageal myositis (EoEM), identified by endoscopy, manometry and serum immunoglobulin E levels (s-IgE), in combination with histological and polymerase chain reaction analyses on esophageal tissue samples...
April 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28428203/tslp-activated-dendritic-cells-induce-human-t-follicular-helper-cell-differentiation-through-ox40-ligand
#11
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...
April 20, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28427879/food-protein-induced-enterocolitis-syndrome-in-australia-a-population-based-study-2012-2014
#12
Sam Mehr, Katie Frith, Elizabeth H Barnes, Dianne E Campbell
BACKGROUND: Food protein induced enterocolitis syndrome (FPIES) is a non-IgE mediated gastrointestinal allergic disorder. Large population based FPIES studies are lacking. OBJECTIVE: To determine the incidence and clinical characteristics of FPIES in Australian infants METHODS: An Australia wide survey (2012-2014) was undertaken via the Australian Paediatric Surveillance Unit, with monthly notification of new cases of acute FPIES in infants aged <24 months by 1400 participating Paediatricians...
April 17, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28427296/predictors-of-response-to-therapy-with-omalizumab-in-patients-with-severe-allergic-asthma-a-real-life-study
#13
Maria Kallieri, Andriana I Papaioannou, Evgenia Papathanasiou, Polyxeni Ntontsi, Spyridon Papiris, Stelios Loukides
INTRODUCTION: Omalizumab is a recombinant humanized IgG1 monoclonal anti-IgE antibody, used for the treatment of severe refractory allergic asthma. However, not all patients with IgE levels within the limits of administration, respond to treatment. The aim of the present study, was to determine clinical and inflammatory characteristics that could predict response to omalizumab. METHODS: We studied retrospectively patients treated with omalizumab as per GINA guidelines in one asthma tertiary referral center...
April 21, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28425585/eosinophilic-esophagitis-unclear-roles-of-ige-and-eosinophils
#14
C Blanchard, D Simon, A Schoepfer, A Straumann, H-U Simon
Eosinophilic esophagitis (EoE) is a chronic inflammatory disease of the oesophagus. Recognized as a distinct entity only two decades ago, the emergence of the disease along with the availability of new technologies has rapidly opened new research avenues and outlined the main features of the pathogenesis of EoE. Yet, each advance in our understanding of the disease has raised new questions about the previous consensus. Currently, new subsets of the disease challenge our diagnostic criteria. For instance, it was believed that EoE did not respond to proton pump inhibitor (PPI) therapy; however, it has now been shown that a substantial proportion of EoE patients indeed respond to PPIs...
May 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28425249/prediction-of-atopy-via-total-immunoglobulin-e-levels-andskin-prick-tests-in-patients-with-psoriasis
#15
Emine Sümeyye Ünal, Ülker Gül, Adile Berna Dursun, Ferda Öner Erkekol
BACKGROUND/AIM: Although the etiopathogeneses of psoriasis and atopy appear to be different, psoriasis has been found to be associated with atopy and atopic dermatitis. In this study, we aimed to determine the role of atopy by examining the medical history and clinical and laboratory findings of patients with psoriasis. MATERIALS AND METHODS: Patients with psoriasis, asthma patients, and healthy volunteers were included in the study. Serum total immunoglobulin E (IgE) levels were obtained, and prick tests were administered to all groups...
April 18, 2017: Turkish Journal of Medical Sciences
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
#16
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/28423486/tick-host-conflict-immunoglobulin-e-antibodies-to-tick-proteins-in-patients-with-anaphylaxis-to-tick-bite
#17
Lourdes Mateos-Hernández, Margarita Villar, Angel Moral, Carmen García Rodríguez, Teresa Alfaya Arias, Verónica de la Osa, Francisco Feo Brito, Isabel G Fernández de Mera, Pilar Alberdi, Francisco Ruiz-Fons, Alejandro Cabezas-Cruz, Agustín Estrada-Peña, José de la Fuente
Tick-borne infectious diseases and allergies are a growing problem worldwide. Tick bite allergy has been associated with the direct effect of immunoglobulin E (IgE) response to tick salivary antigens, or secondary to the induction of allergy to red meat consumption through IgE antibodies against the carbohydrate α-Gal (Gal α 1-3Gal β 1-(3)4GlcNAc-R). However, despite the growing burden of this pathology, the proteins associated with anaphylaxis to tick bite have not been characterized. To address this question, a comparative proteomics approach was used to characterize tick proteins producing an IgE antibody response in a healthy individual with record of tick bites, which had not resulted in any allergic reactions, and two patients with anaphylactic reactions to Rhipicephalus bursa or Hyalomma marginatum tick bites...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423454/uk-neqas-survey-of-allergen-component-testing-across-the-united-kingdom-and-other-european-countries
#18
R Saleem, C Keymer, D Patel, W Egner, A W Rowbottom
The clinical utility of molecular diagnostic approaches in allergy investigation is being recognized increasingly to play a significant role in the management of allergic patients. Determining the sensitization pattern, which is best achieved through the use of component resolved diagnostics (CRD), allows effective risk stratification, appropriate treatment and patient selection for immunotherapy. In order to assess the diagnostic service provisions for in-vitro allergy testing across Europe, a survey was carried out via the total immunoglobulin (Ig)E and specific IgE external quality assurance schemes run by UK National External Quality Assessment Service (NEQAS) Immunology, Immunochemistry and Allergy...
April 19, 2017: Clinical and Experimental Immunology
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
#19
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/28421202/the-interaction-between-hiv-and-intestinal-helminth-parasites-coinfection-with-nutrition-among-adults-in-kwazulu-natal-south-africa
#20
B T Mkhize, M Mabaso, T Mamba, C E Napier, Z L Mkhize-Kwitshana
In South Africa few studies have examined the effects of the overlap of HIV and helminth infections on nutritional status. This cross-sectional study investigated the interaction between HIV and intestinal helminths coinfection with nutritional status among KwaZulu-Natal adults. Participants were recruited from a comprehensive primary health care clinic and stratified based on their HIV, stool parasitology, IgE, and IgG4 results into four groups: the uninfected, HIV infected, helminth infected, and HIV-helminth coinfected groups...
2017: BioMed Research International
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