Pathological IgE Production in Inborn Errors of Immunity and Beyond.

In this review, we examine different mechanisms for the generation of pathological IgE through the study of inborn errors of immunity (IEI). In particular, we focus on IEIs that are susceptible to atopic disease, such as severe eczema, eosinophilia, and/or food anaphylaxis; this group of approximately 50 genes has been coined primary atopic disorders (PADs). PADs link specific genes and pathways to atopic disease and the production of IgE and can provide insights into more common allergies experienced by the general population.