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Precision engineering for localization, validation, and modification of allergenic epitopes
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AI
DOI：10.1016/j.jaci.2023.12.017.png)
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Abstract
En 中文
The allergen-IgE interaction is essential for the genesis of allergic responses, yet investigation of the molecular basis of these interactions is in its infancy. Precision engineering has unveiled the molecular features of allergen -antibody interactions at the atomic level. High -resolution technologies, including x-ray crystallography, nuclear magnetic resonance spectroscopy, and cryo-electron microscopy, determine allergenantibody structures. X-ray crystallography of an allergenantibody complex localizes in detail amino acid residues and interactions that define the epitope-paratope interface. Multiple structures involving murine IgG mAbs have recently been resolved. The number of amino acids forming the epitope broadly correlates with the epitope area. The production of human IgE mAbs from B cells of allergic subjects is an exciting recent development that has for the first time enabled an actual IgE epitope to be defined. The biologic activity of defined IgE epitopes can be validated in vivo in animal models or by measuring mediator release from engineered basophilic cell lines. Finally, gene -editing approaches using the Clustered Regularly Interspaced Short Palindromic Repeats technology to either remove allergen genes or make targeted epitope engineering at the source are on the horizon. This review presents an overview of the identification and validation of allergenic epitopes by precision engineering. (J Allergy Clin
Keywords:
Allergens
IgE monoclonal antibody
allergenic epi- topes
allergen engineering
x-ray crystallography
nuclear magnetic resonance
CRISPR
Journal
IF:
11.2
Papers:
3.7W
Citations:
5.6W
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