1. Simulated gastric fluid assay for estimating the digestibility of newly expressed proteins in GE crops: Missteps in development and interpretation.
- Author
-
Herman RA and Zhang JXQ
- Subjects
- Humans, Protein Stability, Allergens chemistry, Crops, Agricultural adverse effects, Digestion, Food Hypersensitivity etiology, Plants, Genetically Modified immunology, Gastric Juice enzymology, Dietary Proteins chemistry, Enzyme Assays
- Abstract
Digestive stability of a food protein in simulated gastric fluid (SGF) continues to be considered a risk factor for allergy, even though the current science does not support this belief. Methodological shortcomings of the adaption of the SGF assay for use with purified proteins has been cited as a reason to discount results that do not conform to this belief. Missteps in conducting and interpreting the results of SGF assays are reviewed here. However, these methodological shortcomings do not invalidate the conclusion that allergenic proteins are not systematically more stable to digestion than non-allergens. The growing evidence for the dual allergen exposure hypothesis, whereby sensitization to food allergens is primarily caused by dermal and inhalation exposure to food dust, and tolerization against food allergy is primarily induced by gut exposure in food, likely explains why the digestive stability of a protein is not a risk factor for allergenicity., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Rod Herman and John Zhang reports a relationship with Corteva Agriscience LLC that includes: employment. The Authors are employed by Corteva Agriscience which develops and markets transgenic seed., (Copyright © 2022 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2022
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