Eosinophilic esophagitis: a clinicopathological review

Area of Science:

• Gastroenterology
• Immunology
• Allergy

Background:

• Eosinophilic esophagitis (EoE) is a chronic, antigen-driven esophageal disease.
• It involves inflammatory cell infiltration, leading to tissue remodeling and symptoms like dysphagia.
• EoE shares features with other atopic conditions but has distinct characteristics like male predominance and eotaxin 3 expression.

Purpose of the Study:

• To summarize the current understanding of EoE pathogenesis and treatment challenges.
• To identify key areas for future research and therapeutic development.

Main Methods:

• Review of existing literature on EoE.
• Analysis of shared and distinct features with other atopic diseases.
• Identification of unmet needs in current treatment strategies.

Main Results:

• EoE is characterized by TH2 inflammation, eosinophilic infiltration, and tissue remodeling.
• Current treatments like diet modification and corticosteroids are often insufficient.
• Distinct features include male predominance and specific chemokine expression.

Conclusions:

• Further research is needed to understand genotype/phenotype associations in EoE.
• Determining the reversibility of esophageal remodeling is crucial.
• Development of novel therapies targeting fibrotic pathways or barrier integrity is a key future direction.