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Oral immunotherapy

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https://www.readbyqxmd.com/read/28205558/plant-based-vaccines-for-oral-delivery-of-type-1-diabetes-related-autoantigens-evaluating-oral-tolerance-mechanisms-and-disease-prevention-in-nod-mice
#1
Amanda L Posgai, Clive H Wasserfall, Kwang-Chul Kwon, Henry Daniell, Desmond A Schatz, Mark A Atkinson
Autoantigen-specific immunological tolerance represents a central objective for prevention of type 1 diabetes (T1D). Previous studies demonstrated mucosal antigen administration results in expansion of Foxp3(+) and LAP(+) regulatory T cells (Tregs), suggesting oral delivery of self-antigens might represent an effective means for modulating autoimmune disease. Early preclinical experiments using the non-obese diabetic (NOD) mouse model reported mucosal administration of T1D-related autoantigens [proinsulin or glutamic acid decarboxylase 65 (GAD)] delayed T1D onset, but published data are conflicting regarding dose, treatment duration, requirement for combinatorial agents, and extent of efficacy...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202215/erratum-to-cytoreductive-surgery-for-head-and-neck-squamous-cell-carcinoma-in-the-new-age-of-immunotherapy-oral-oncol-61-2016-166-176
#2
R Bryan Bell, Michael J Gough, Steven K Seung, Zeljka Jutric, Andrew D Weinberg, Bernard A Fox, Marka R Crittenden, Rom S Leidner, Brendan Curti
No abstract text is available yet for this article.
February 12, 2017: Oral Oncology
https://www.readbyqxmd.com/read/28199353/oral-administration-of-lactobacillus-paracasei-l9-attenuates-pm2-5-induced-enhancement-of-airway-hyperresponsiveness-and-allergic-airway-response-in-murine-model-of-asthma
#3
Xifan Wang, Yan Hui, Liang Zhao, Yanling Hao, Huiyuan Guo, Fazheng Ren
This study investigated allergy immunotherapy potential of Lactobacillus paracasei L9 to prevent or mitigate the particulate matter 2.5 (PM2.5) enhanced pre-existing asthma in mice. Firstly, we used a mouse model of asthma (a 21-day ovalbumin (OVA) sensitization and challenge model) followed by PM2.5 exposure twice on the same day of the last challenge. PM2.5 was collected from the urban area of Beijing and underwent analysis for metals and polycyclic aromatic hydrocarbon contents. The results showed that PM2...
2017: PloS One
https://www.readbyqxmd.com/read/28195314/reversal-of-tumor-acidosis-by-systemic-buffering-reactivates-nk-cells-to-express-ifn-%C3%AE-and-induces-nk-cell-dependent-lymphoma-control-without-other-immunotherapies
#4
Johann Pötzl, David Roser, Lorenz Bankel, Nadine Hömberg, Albert Geishauser, Christoph D Brenner, Michael Weigand, Martin Röcken, Ralph Mocikat
Like other immune cells, natural killer (NK) cells show impaired effector functions in the microenvironment of tumors, but little is known on the underlying mechanisms. Since lactate acidosis, a hallmark of malignant tissue, was shown to contribute to suppression of effective antitumor immune responses, we investigated the impact of tissue pH and lactate concentration on NK-cell functions in an aggressive model of endogenously arising B-cell lymphoma. The progressive loss of IFN-γ production by NK cells observed during development of this disease could be ascribed to decreased pH values and lactate accumulation in the microenvironment of growing tumors...
February 13, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28181151/update-on-potential-therapies-for-ige-mediated-food-allergy
#5
REVIEW
Andrew MacGinnite
PURPOSE OF REVIEW: Food allergy is common, affecting up to 8% of children in the USA. Currently, therapy is limited to avoidance of the implicated allergen and availability of self-injectable epinephrine. However, several new approaches to food allergy are under investigation. This article reviews the published data on these new approaches. RECENT FINDINGS: Oral immunotherapy, in which allergic subjects are exposed to increasing amounts of antigen, can be accomplished in the majority of allergic individuals...
January 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28153391/plant-made-vaccines-in-the-fight-against-cancer
#6
REVIEW
Alejandra Wong-Arce, Omar González-Ortega, Sergio Rosales-Mendoza
Immunotherapies constitute an important trend in developing new cancer treatments, and several promising candidates are under evaluation in clinical trials. Plants have entered the fight against cancer because they constitute low-cost and efficient hosts for biopharmaceutical production that can also serve as oral delivery vehicles. This review is focused on the knowledge gained through the development of anticancer plant-made vaccines reported thus far, and highlights the potential of this technology - its success being reflected in the number of candidates that are close to market...
January 30, 2017: Trends in Biotechnology
https://www.readbyqxmd.com/read/28148714/clinical-dosing-regimen-of-selinexor-maintains-normal-immune-homeostasis-and-t-cell-effector-function-in-mice-implications-for-combination-with-immunotherapy
#7
Paul M Tyler, Mariah M Servos, Romy C de Vries, Boris Klebanov, Trinayan Kashyap, Sharon Sacham, Yosef Landesman, Michael Dougan, Stephanie K Dougan
Selinexor (KPT-330) is a first in class nuclear transport inhibitor currently in clinical trials as an anti-cancer agent. To determine how selinexor might impact anti-tumor immunity, we analyzed immune homeostasis in mice treated with selinexor and found disruptions in T cell development, a progressive loss of CD8 T cells and increases in inflammatory monocytes. Antibody production in response to immunization was mostly normal. Precursor populations in bone marrow and thymus were unaffected by selinexor, suggesting that normal immune homeostasis could recover...
February 1, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28141955/investigational-new-drugs-for-allergic-rhinitis
#8
Peter A Ricketti, Sultan Alandijani, Chen Hsing Lin, Thomas B Casale
Allergic rhinitis (AR) is a multifactorial disease characterized by paroxysmal symptoms of sneezing, rhinorrhea, postnasal drip and nasal congestion. For over a century, subcutaneous allergen immunotherapy (SCIT) has been recognized as the most effective therapy to date that may modify the underlying disease course and provide long-term benefits for individuals refractory to pharmacotherapy. However, over the past 25 years, there has been substantial growth in developing alternative therapies to traditional SCIT...
January 31, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28132800/preparation-and-analysis-of-peanut-flour-used-in-oral-immunotherapy-clinical-trials
#9
Jelena P Berglund, Nicole Szczepanski, Anusha Penumarti, Ayeshia Beavers, Janelle Kesselring, Kelly Orgel, Bruce Burnett, A Wesley Burks, Michael Kulis
BACKGROUND: Oral immunotherapy (OIT) is an investigational therapeutic approach for the treatment of food allergies. Characterization of the drug product used in oral immunotherapy trials for peanut allergy has not been reported. OBJECTIVE: To quantify relative amounts of the major peanut allergens and microbial load present in peanut flour used in OIT trials and assess whether these parameters change over a 12-month period. We also anticipate that this report will serve as a guide for investigators seeking to conduct OIT trials under Food and Drug Administration-approved Investigational New Drug applications...
January 26, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28129685/a-safe-and-effective-method-for-wheat-oral-immunotherapy
#10
Alireza Khayatzadeh, Mohamad Gharaghozlou, Motohiro Ebisawa, Raheleh Shokouhi Shoormasti, Masoud Movahedi
At present the only available management for food allergy is avoidance; however, abstaining from allergic foods can affect the quality of life. Oral Immunotherapy (OIT) is an efficient method for increasing tolerance towards food allergens. The aim of this study was desensitizing patients above five years of age with wheat allergy and evaluating the safety and efficacy of OIT for children with IgE-mediated wheat allergy. The method of Rush Oral Immunotherapy (ROIT) was performed on 8 anaphylactic wheat allergic patients as well as outpatient method on 5 non-anaphylactic ones...
December 2016: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28124639/new-routes-of-allergen-immunotherapy
#11
Mitat Aricigil, Nuray Bayar Muluk, Engin Umut Sakarya, Emine Güven Sakalar, Mehmet Senturk, William R Reisacher, Cemal Cingi
OBJECTIVES: Allergen immunotherapy is the only cure for immunoglobulin E mediated type I respiratory allergies. Subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT) are the most common treatments. In this article, we reviewed new routes of allergen immunotherapy. METHODS: Data on alternative routes to allow intralymphatic immunotherapy (ILIT), epicutaneous immunotherapy (EPIT), local nasal immunotherapy (LNIT), oral immunotherapy (OIT), and oral mucosal immunotherapy (OMIT) were gathered from the literature and were discussed...
November 1, 2016: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28112593/oral-combination-vaccine-comprising-bifidobacterium-displaying-hepatitis-c-virus-nonstructural-protein-3-and-interferon-%C3%AE-induces-strong-cellular-immunity-specific-to-nonstructural-protein-3-in-mice
#12
Koichi Kitagawa, Chika Omoto, Tsugumi Oda, Ayame Araki, Hiroki Saito, Katsumi Shigemura, Takane Katayama, Hak Hotta, Toshiro Shirakawa
We previously generated an oral hepatitis C virus (HCV) vaccine using Bifidobacterium displaying the HCV nonstructural protein 3 (NS3) polypeptide. NS3-specific cellular immunity is important for viral clearance and recovery from HCV infection. In this study, we enhanced the cellular immune responses induced by our oral HCV vaccine, Bifidobacterium longum 2165 (B. longum 2165), by combining interferon-α (IFN-α) as an adjuvant with the vaccine in a mouse experimental model. IFN-α is a widely used cytokine meeting the standard of care (SOC) for HCV infection and plays various immunoregulatory roles...
January 23, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28107533/improvement-of-therapeutic-efficacy-of-oral-immunotherapy-in-combination-with-regulatory-t-cell-inducer-kakkonto-in-a-murine-food-allergy-model
#13
Yuka Nagata, Takeshi Yamamoto, Michie Hayashi, Shusaku Hayashi, Makoto Kadowaki
Oral immunotherapy (OIT) has been considered a promising approach for food allergies (FAs). However, the current OIT strategy is limited in terms of the long-term efficacy and safety. We have previously demonstrated that kakkonto, a traditional Japanese herbal medicine, suppresses the occurrence of allergic symptoms in a murine model of ovalbumin (OVA)-induced FA, which is attributed to the induction of the Foxp3+ CD4+ regulatory T cells. In this study, we established an OIT model using the FA mice with already established allergic symptoms and determined whether kakkonto could improve the efficacy of OIT...
2017: PloS One
https://www.readbyqxmd.com/read/28102823/oral-immunotherapy-for-food-allergy
#14
R A Wood
No abstract text is available yet for this article.
January 19, 2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28102702/immunomodulating-peptides-for-food-allergy-prevention-and-treatment
#15
Daniel Lozano-Ojalvo, Rosina López-Fandiño
Among the most promising strategies currently assayed against IgE-mediated allergic diseases stands the possibility of using immunomodulating peptides to induce oral tolerance towards offending food allergens or even to prevent allergic sensitization. This review focuses on the beneficial effects of food derived immunomodulating peptides on food allergy, which can be directly exerted in the intestinal tract or once being absorbed through the intestinal epithelial barrier to interact with immune cells. Food peptides influence intestinal homeostasis by maintaining and reinforcing barrier function or affecting intestinal cell-signalling to nearby immune cells and mucus secretion...
January 19, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28102061/clinical-diversity-of-atopic-dermatitis-a-review-of-5-000-patients-at-a-single-institute
#16
Howard Chu, Jung U Shin, Chang Ook Park, Hemin Lee, Jungsoo Lee, Kwang Hoon Lee
PURPOSE: Atopic dermatitis (AD) is a chronic eczematous dermatitis that has a high prevalence and diverse clinical features. Although several hypotheses about its multifactorial pathogenesis have been suggested, the cause is not yet fully understood. A better understanding of the clinical features may helpful inelucidating the pathogenesis of AD. METHODS: This retrospective study analyzed the questionnaires, medical charts, and laboratory examination results of 5,000 patients diagnosed with AD at a single tertiary hospital in Korea...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28102055/role-of-regulatory-cells-in-oral-tolerance
#17
REVIEW
Marcin Wawrzyniak, Liam O'Mahony, Mübeccel Akdis
The immune system is continuously exposed to great amounts of different antigens from both food and intestinal microbes. Immune tolerance to these antigens is very important for intestinal and systemic immune homeostasis. Oral tolerance is a specific type of peripheral tolerance induced by exposure to antigen via the oral route. Investigations on the role of intestinal immune system in preventing hypersensitivity reactions to innocuous dietary and microbial antigens have been intensively performed during the last 2 decades...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28100257/food-specific-sublingual-immunotherapy-is-well-tolerated-and-safe-in-healthy-dogs-a-blind-randomized-placebo-controlled-study
#18
RANDOMIZED CONTROLLED TRIAL
E Maina, M Pelst, M Hesta, E Cox
BACKGROUND: Food allergies are increasing in prevalence but no treatment strategies are currently available to cure dogs with food allergy. Over the past decade, experimental food allergen-specific sublingual immunotherapy (FA-SLIT) has emerged as a potential treatment for food allergies in human medicine. However, FA-SLIT has not been investigated in dogs. Therefore, the objective of this study was to prospectively evaluate the safety, tolerability and dispenser sterility of FA-SLIT in healthy dogs before testing it in food allergic dogs...
January 18, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28091362/epicutaneous-immunotherapy-for-the-treatment-of-peanut-allergy-in-children-and-young-adults
#19
Stacie M Jones, Scott H Sicherer, A Wesley Burks, Donald Y M Leung, Robert W Lindblad, Peter Dawson, Alice K Henning, M Cecilia Berin, David Chiang, Brian P Vickery, Robbie D Pesek, Christine B Cho, Wendy F Davidson, Marshall Plaut, Hugh A Sampson, Robert A Wood
BACKGROUND: Peanut allergy is common, life-threatening, and without therapeutic options. We evaluated peanut epicutaneous immunotherapy (EPIT) by using Viaskin Peanut for peanut allergy treatment. OBJECTIVE: We sought to evaluate the clinical, safety, and immunologic effects of EPIT for the treatment of peanut allergy. METHODS: In this multicenter, double-blind, randomized, placebo-controlled study, 74 participants with peanut allergy (ages 4-25 years) were treated with placebo (n = 25), Viaskin Peanut 100 μg (VP100; n = 24) or Viaskin Peanut 250 μg (VP250; n = 25; DBV Technologies, Montrouge, France)...
October 20, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28087382/efficacy-and-safety-of-high-dose-rush-oral-immunotherapy-in-persistent-egg-allergic-children-a-randomized-clinical-trial
#20
Inmaculada Pérez-Rangel, Pablo Rodríguez Del Río, Carmelo Escudero, Silvia Sánchez-García, José Javier Sánchez-Hernández, María Dolores Ibáñez
BACKGROUND: Egg oral immunotherapy is effective but time consuming. OBJECTIVE: To assess the efficacy and safety of egg rush oral immunotherapy (ROIT) with a targeted dose equivalent to a raw egg white. METHODS: Thirty-three persistent egg allergic children confirmed by double-blind, placebo-controlled food challenge (DBPCFC) were randomized to receive egg ROIT immediately after randomization (ROIT1 group), or to continue an egg avoidance diet for 5 months after randomization (control group [CG])...
January 10, 2017: Annals of Allergy, Asthma & Immunology
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