Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in mice
<p>Abstract</p> <p>Background</p> <p>Epicutaneous immunotherapy (EPIT) on intact skin with an epicutaneous delivery system has already been used in preclinical and clinical studies. In epicutaneous vaccination and immunotherapy, the stripping of skin before application...
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doaj-5d4cd39ab57e4f75be11e4e15407e8062021-09-02T08:35:25ZengWileyClinical and Translational Allergy2045-70222012-11-01212210.1186/2045-7022-2-22Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in miceMondoulet LucieDioszeghy VincentPuteaux EmilieLigouis MélanieDhelft VéroniqueLetourneur FranckDupont ChristopheBenhamou Pierre-Henri<p>Abstract</p> <p>Background</p> <p>Epicutaneous immunotherapy (EPIT) on intact skin with an epicutaneous delivery system has already been used in preclinical and clinical studies. In epicutaneous vaccination and immunotherapy, the stripping of skin before application of the allergen is suggested to facilitate the passage of allergen through immune cells.</p> <p>Objectives</p> <p>The aim of this study was to compare the immunological response induced by EPIT performed on intact and stripped skin in a mouse model of peanut allergy.</p> <p>Methods</p> <p>After oral sensitization with peanut and cholera toxin, BALB/c mice were epicutaneously treated using an epicutaneous delivery system (Viaskin® (DBV Technologies, Paris) applied either on intact skin or on stripped skin. Following EPIT, mice received an exclusive oral peanut regimen, aimed at triggering esophageal and jejunal lesions. We assessed eosinophil infiltration by histology, mRNA expression in the esophagus, antibody levels and peripheral T-cell response.</p> <p>Results</p> <p>EPIT on intact skin significantly reduced Th2 immunological response (IgE response and splenocyte secretion of Th2 cytokines) as well as esophageal eosinophilia (2.7 ± 0.9, compared to Sham 19.9 ± 1.5, p < 0.01), mRNA expression of Th2 cytokines in tissue and intestinal villus sub-atrophia (2.9 ± 0.2 vs Sham, 2.1 ± 0.2, p < 0.05). By contrast, EPIT on stripped skin reinforced Th2 systemic immunological response as well as eosinophil infiltration (26.8 ± 15.1), mRNA expression of Th2 cytokines and duodenal villus/crypt-ratio (2.4 ± 0.3).</p> <p>Conclusions</p> <p>Epicutaneous allergen-specific immunotherapy needs the integrity of superficial layers of the stratum corneum to warranty safety of treatment and to induce a tolerogenic profile of the immune response.</p> http://www.ctajournal.com/content/2/1/22Food allergyImmunotherapyEpicutaneousPeanut |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mondoulet Lucie Dioszeghy Vincent Puteaux Emilie Ligouis Mélanie Dhelft Véronique Letourneur Franck Dupont Christophe Benhamou Pierre-Henri |
spellingShingle |
Mondoulet Lucie Dioszeghy Vincent Puteaux Emilie Ligouis Mélanie Dhelft Véronique Letourneur Franck Dupont Christophe Benhamou Pierre-Henri Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in mice Clinical and Translational Allergy Food allergy Immunotherapy Epicutaneous Peanut |
author_facet |
Mondoulet Lucie Dioszeghy Vincent Puteaux Emilie Ligouis Mélanie Dhelft Véronique Letourneur Franck Dupont Christophe Benhamou Pierre-Henri |
author_sort |
Mondoulet Lucie |
title |
Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in mice |
title_short |
Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in mice |
title_full |
Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in mice |
title_fullStr |
Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in mice |
title_full_unstemmed |
Intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (EPIT) in mice |
title_sort |
intact skin and not stripped skin is crucial for the safety and efficacy of peanut epicutaneous immunotherapy (epit) in mice |
publisher |
Wiley |
series |
Clinical and Translational Allergy |
issn |
2045-7022 |
publishDate |
2012-11-01 |
description |
<p>Abstract</p> <p>Background</p> <p>Epicutaneous immunotherapy (EPIT) on intact skin with an epicutaneous delivery system has already been used in preclinical and clinical studies. In epicutaneous vaccination and immunotherapy, the stripping of skin before application of the allergen is suggested to facilitate the passage of allergen through immune cells.</p> <p>Objectives</p> <p>The aim of this study was to compare the immunological response induced by EPIT performed on intact and stripped skin in a mouse model of peanut allergy.</p> <p>Methods</p> <p>After oral sensitization with peanut and cholera toxin, BALB/c mice were epicutaneously treated using an epicutaneous delivery system (Viaskin® (DBV Technologies, Paris) applied either on intact skin or on stripped skin. Following EPIT, mice received an exclusive oral peanut regimen, aimed at triggering esophageal and jejunal lesions. We assessed eosinophil infiltration by histology, mRNA expression in the esophagus, antibody levels and peripheral T-cell response.</p> <p>Results</p> <p>EPIT on intact skin significantly reduced Th2 immunological response (IgE response and splenocyte secretion of Th2 cytokines) as well as esophageal eosinophilia (2.7 ± 0.9, compared to Sham 19.9 ± 1.5, p < 0.01), mRNA expression of Th2 cytokines in tissue and intestinal villus sub-atrophia (2.9 ± 0.2 vs Sham, 2.1 ± 0.2, p < 0.05). By contrast, EPIT on stripped skin reinforced Th2 systemic immunological response as well as eosinophil infiltration (26.8 ± 15.1), mRNA expression of Th2 cytokines and duodenal villus/crypt-ratio (2.4 ± 0.3).</p> <p>Conclusions</p> <p>Epicutaneous allergen-specific immunotherapy needs the integrity of superficial layers of the stratum corneum to warranty safety of treatment and to induce a tolerogenic profile of the immune response.</p> |
topic |
Food allergy Immunotherapy Epicutaneous Peanut |
url |
http://www.ctajournal.com/content/2/1/22 |
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