4.7 Article

A multi-omic analysis reveals the esophageal dysbiosis as the predominant trait of eosinophilic esophagitis

Journal

JOURNAL OF TRANSLATIONAL MEDICINE
Volume 21, Issue 1, Pages -

Publisher

BMC
DOI: 10.1186/s12967-023-03898-x

Keywords

Esophagus; Transcriptomics; Web app; Microbiota

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This study analyzes the transcriptomics and multi-omics data of EoE, revealing the molecular features, microbiota dysbiosis, and antigen-mediated response of the disease. It suggests that advanced bioinformatics and omics-based approaches can help in the management and treatment of EoE.
Background Eosinophilic esophagitis (EoE) is a chronic immune-mediated rare disease, characterized by esophageal dysfunctions. It is likely to be primarily activated by food antigens and is classified as a chronic disease for most patients. Therefore, a deeper understanding of the pathogenetic mechanisms underlying EoE is needed to implement and improve therapeutic lines of intervention and ameliorate overall patient wellness.Methods RNA-seq data of 18 different studies on EoE, downloaded from NCBI GEO with faster-qdump (), were batch-corrected and analyzed for transcriptomics and metatranscriptomics profiling as well as biological process functional enrichment. The EoE TaMMA web app was designed with plotly and dash. Tabula Sapiens raw data were downloaded from the UCSC Cell Browser. Esophageal single-cell raw data analysis was performed within the Automated Single-cell Analysis Pipeline. Single-cell data-driven bulk RNA-seq data deconvolution was performed with MuSiC and CIBERSORTx. Multi-omics integration was performed with MOFA.Results The EoE TaMMA framework pointed out disease-specific molecular signatures, confirming its reliability in reanalyzing transcriptomic data, and providing new EoE-specific molecular markers including CXCL14, distinguishing EoE from gastroesophageal reflux disorder. EoE TaMMA also revealed microbiota dysbiosis as a predominant characteristic of EoE pathogenesis. Finally, the multi-omics analysis highlighted the presence of defined classes of microbial entities in subsets of patients that may participate in inducing the antigen-mediated response typical of EoE pathogenesis.Conclusions Our study showed that the complex EoE molecular network may be unraveled through advanced bioinformatics, integrating different components of the disease process into an omics-based network approach. This may implement EoE management and treatment in the coming years.

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