Avtor/Urednik		Murch, Simon H.; Allen, Katrina; Chong, Sonny; Amil Dias, Jorge; Papadopulou, Alexandra; Orel, Rok
Naslov		Potential for improving therapy and defining new research targets in eosinophilic oesophagitis based on understanding of immunopathogenesis
Tip		članek
Vol. in št.		Letnik 57, št. 4
Leto izdaje		2013
Obseg		str. 529-534
ISSN		0277-2116 - Journal of pediatric gastroenterology and nutrition
Jezik		eng
Abstrakt		OBJECTIVES: This review considers the potential for therapeutic advances in the management of eosinophilic oesophagitis (EoE) based on recently increased understanding of the pathophysiology of the disorder. METHODS: This is a review of publications characterising mucosal changes and leucocyte recruitment patterns in human and experimental EoE. RESULTS: EoE, although diagnosed by epithelial infiltration of eosinophils, is actually a transmural inflammation in which eosinophil recruitment occurs via the deeper layers. Penetration of eosinophils into the epithelium is variable, explaining the need for multiple biopsies to diagnose what may be a clearly visible disorder. Fibrosis and neuromuscular dysfunction both occur within the subepithelial tissues. Recent murine studies have identified that T-cell recruitment underpins antigen-specific oesophageal eosinophil recruitment. Involvement of innate immunity is also suggested by the role of invariant natural killer T cells in experimental EoE. CONCLUSIONS: Looking beyond present therapeutic options with a view to future studies, we identify T cells as candidates for "upstream therapy" if antigen specificity or homing markers are determined. Evidence of aeroallergen sensitisation suggests the possibility of lymphocyte priming within nasal-associated lymphoid tissue or Waldeyer ring, with the potential for topical therapy. We consider acquired neuromuscular dysfunction as a therapeutic target in acute symptomatic deterioration or bolus obstruction. We assess possible similarities with therapeutic stratagems for chronic asthma, recognising at the same time the anatomic specificity of the oesophagus and the difficulty in delivering effective topical medication to subepithelial tissues in this location compared with the airway
Proste vsebinske oznake		immunopathogenesis diagnostic workup