Periostin: Only a tissue biomarker in eosinophilic esophagitis assessment?

Outcomes in eosinophilic esophagitis: current understanding and future directions

PURPOSE OF REVIEW

Eosinophilic esophagitis (EoE) is a chronic, immune-mediated disorder that demands lifelong management due to its potential to progress to fibrosis and esophageal strictures. This review synthesizes current strategies for evaluating EoE outcomes and highlights emerging approaches aimed at reconciling the often discordant relationship between clinical symptoms and histologic findings. An updated synthesis is crucial to guide evolving clinical practices.

RECENT FINDINGS

Recent literature emphasizes the multifaceted nature of EoE, revealing limitations in traditional outcome measures. Advances in patient-reported outcomes (PROs), histologic scoring systems, and endoscopic assessments have enriched our understanding of disease activity. Furthermore, the integration of functional assessments through modalities such as high-resolution manometry and EndoFLIP, along with digital data integration, has refined disease monitoring and provided nuanced insights into treatment responses and long-term progression. Additionally, emerging evidence suggests that integrating novel biomarkers may further refine disease stratification and outcomes.

SUMMARY

A multidimensional approach that combines clinical, histologic, endoscopic, and functional data is crucial for personalized management of EoE. These insights pave the way for improved therapeutic decision-making and highlight the need for standardized, comprehensive tools in both clinical practice and future research. These additional findings advocate for a shift towards precision medicine, emphasizing multidisciplinary and patient-centric approaches.

Eosinophilic gastrointestinal disorders and the role for the epithelium in pathogenesis and treatment

PURPOSE OF REVIEW

This review aims to provide an overview of the current understanding of eosinophilic gastrointestinal disorders (EGIDs) and the role of the epithelium in influencing disease pathogenesis to inform and devise future therapeutic strategies.

RECENT FINDINGS

Changes in epithelial cell structure, functions, and integrity are observed in EGIDs. In eosinophilic esophagitis (EoE), the esophageal epithelium has been shown to play key roles in perpetuating the inflammatory response in EoE through the expression of pro-inflammatory cytokines and immunological cell-surface proteins. Similar mechanisms appear to exist in the other EGIDs, including eosinophilic gastritis (EoG), eosinophilic enteritis (EoN), and eosinophilic colitis (EoC). Because of the increasing rarity of each non-EoE EGID, research focusing on how the epithelium is modulating disease in each lower gastrointestinal compartment is still in its rudimentary stages.

SUMMARY

While there has been significant progress in understanding the role of the epithelium in EoE, further research is needed to obtain a better understanding of the mechanisms mediating epithelial-immune crosstalk in non-EoE EGIDs. Using EoE-epithelial cell research to inform future EGID investigations could lead to the development of new therapeutic interventions, such as targeted therapies to restore epithelial barrier function and reduce inflammation, to improve rare disease-patient quality of life.