Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.

Weevils can devastate food legumes in developing countries, but genetically modified peas (Pisum sativum), chickpeas and cowpeas expressing the gene for alpha-amylase inhibitor-1 (αAI) from the common bean (Phaseolus vulgaris) are completely protected from weevil destruction. αAI is seed-specific, a...

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Main Authors: Rui-Yun Lee, Daniela Reiner, Gerhard Dekan, Andrew E Moore, T J V Higgins, Michelle M Epstein
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3541390?pdf=render
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author Rui-Yun Lee
Daniela Reiner
Gerhard Dekan
Andrew E Moore
T J V Higgins
Michelle M Epstein
author_facet Rui-Yun Lee
Daniela Reiner
Gerhard Dekan
Andrew E Moore
T J V Higgins
Michelle M Epstein
author_sort Rui-Yun Lee
collection DOAJ
description Weevils can devastate food legumes in developing countries, but genetically modified peas (Pisum sativum), chickpeas and cowpeas expressing the gene for alpha-amylase inhibitor-1 (αAI) from the common bean (Phaseolus vulgaris) are completely protected from weevil destruction. αAI is seed-specific, accumulated at high levels and undergoes post-translational modification as it traverses the seed endomembrane system. This modification was thought to be responsible for the reported allergenicity in mice of the transgenic pea but not the bean. Here, we observed that transgenic αAI peas, chickpeas and cowpeas as well as non-transgenic beans were all allergenic in BALB/c mice. Even consuming non-transgenic peas lacking αAI led to an anti-αAI response due to a cross-reactive response to pea lectin. Our data demonstrate that αAI transgenic peas are not more allergenic than beans or non-transgenic peas in mice. This study illustrates the importance of repeat experiments in independent laboratories and the potential for unexpected cross-reactive allergic responses upon consumption of plant products in mice.
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spelling doaj.art-fe6171fca4024c238f6771c37d6047472022-12-22T03:14:03ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0181e5297210.1371/journal.pone.0052972Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.Rui-Yun LeeDaniela ReinerGerhard DekanAndrew E MooreT J V HigginsMichelle M EpsteinWeevils can devastate food legumes in developing countries, but genetically modified peas (Pisum sativum), chickpeas and cowpeas expressing the gene for alpha-amylase inhibitor-1 (αAI) from the common bean (Phaseolus vulgaris) are completely protected from weevil destruction. αAI is seed-specific, accumulated at high levels and undergoes post-translational modification as it traverses the seed endomembrane system. This modification was thought to be responsible for the reported allergenicity in mice of the transgenic pea but not the bean. Here, we observed that transgenic αAI peas, chickpeas and cowpeas as well as non-transgenic beans were all allergenic in BALB/c mice. Even consuming non-transgenic peas lacking αAI led to an anti-αAI response due to a cross-reactive response to pea lectin. Our data demonstrate that αAI transgenic peas are not more allergenic than beans or non-transgenic peas in mice. This study illustrates the importance of repeat experiments in independent laboratories and the potential for unexpected cross-reactive allergic responses upon consumption of plant products in mice.http://europepmc.org/articles/PMC3541390?pdf=render
spellingShingle Rui-Yun Lee
Daniela Reiner
Gerhard Dekan
Andrew E Moore
T J V Higgins
Michelle M Epstein
Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.
PLoS ONE
title Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.
title_full Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.
title_fullStr Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.
title_full_unstemmed Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.
title_short Genetically modified α-amylase inhibitor peas are not specifically allergenic in mice.
title_sort genetically modified α amylase inhibitor peas are not specifically allergenic in mice
url http://europepmc.org/articles/PMC3541390?pdf=render
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