A newly identified pathology of episodic angioedema with hypereosinophilia (Gleich syndrome) revealed by multiomics analysis

The findings suggest that decreased angiotensin-converting enzyme expression, driven by PR domain containing 16 (gene involved in transcriptional regulation) mutations and altered IFNG expression, may contribute to increased bradykinin levels and activation of the arachidonic acid cascade, leading to the severe inflammation and angioedema characteristic of Gleich syndrome. This study underscores the utility of integrating WGS and RNA-seq data in elucidating the molecular basis of rare diseases and offers a foundation for developing therapeutic strategies for hypereosinophilic syndromes.