Journal
EXPERT REVIEW OF GASTROENTEROLOGY & HEPATOLOGY
Volume 13, Issue 2, Pages 99-117Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17474124.2019.1546120
Keywords
Diagnosis; eotaxin-3; eosinophilic esophagitis; eosinophils; food allergy; interleukin-13; inflammation; immunopathogenesis; microbiota; mast cells; remodeling; therapy; thymic stromal lymphopoietin
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Introduction: Eosinophilic esophagitis (EoE) is a chronic, allergen-driven inflammatory esophageal disease characterized by predominantly eosinophilic inflammation leading to esophageal dysfunction. Recent efforts to understand EoE have increased our knowledge of the disease. Areas covered: Multiple cells, molecules, and genes interplay with early life environmental factors in the pathophysiology of EoE to converge in the esophageal epithelium at the center of disease pathogenesis. Epithelial cells constitute a mayor cytokine source for TSLP and Calpain-14; an impaired epithelial barrier function allowing penetration of food and microbiota-derived antigens is involved in triggering and maintaining inflammation. Eosinophil and mast cell-derived products, including TGF beta, together with IL-1 beta and TNF alpha, promote epithelial mesenchymal transition in EoE, contributing to tissue remodeling by synthetizing and depositing extracellular matrix in subepithelial layers. This article aims to provide a state-of-the-art update on the pathophysiology of EoE applied to clinical practice, and latest research and developments with potential interest to improve the diagnosis and treatment of patients with EoE are revised. Expert commentary: Preliminary approaches have provided promising results toward incorporating minimally invasive methods for patient diagnosis and monitoring in clinical practice. Early diagnosis and optimized therapies will allow for personalized medicine in EoE.
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