Genetic dissection of eosinophilic esophagitis provides insight into disease pathogenesis and treatment strategies.

Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio 45229, USA.
The Journal of allergy and clinical immunology (Impact Factor: 12.05). 05/2011; 128(1):23-32; quiz 33-4. DOI: 10.1016/j.jaci.2011.03.046
Source: PubMed

ABSTRACT Eosinophilic esophagitis (EoE) is a chronic inflammatory disorder of the esophagus that is compounded by both genetic predisposition and aberrant responses to environmental antigens, particularly those that are food derived. Data have indicated a unique transcriptional response in vivo that defines EoE and that appears to be partially attributable to the T(H)2 cytokine IL-13. Moreover, a number of genetic risk variants in proinflammatory and epithelial cell genes associate with EoE susceptibility, demonstrating novel heritable mechanisms that contribute to disease risk. Here we discuss recent advances in our understanding of the intrinsic (genetic) and extrinsic (environmental) components that illustrate the complex nature of EoE.

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