Peripheral Blood Gene Expression Profile of Infants with Atopic Dermatitis

Area of Science:

• Immunology
• Genetics
• Dermatology

Background:

• Pediatric atopic dermatitis (AD) is a common inflammatory skin condition with complex molecular underpinnings.
• Understanding the genetic and molecular basis of AD in infants is crucial for developing effective treatments.

Purpose of the Study:

• To elucidate the molecular mechanisms of pediatric atopic dermatitis.
• To identify novel diagnostic biomarkers and therapeutic targets for infant AD.

Main Methods:

• RNA sequencing of peripheral blood mononuclear cells (PBMCs) from infants with AD and controls.
• Differential gene expression analysis, functional enrichment (Gene Ontology), and pathway analysis (DAVID database).
• Protein-protein interaction network analysis (STRING, Cytoscape) to identify hub genes.

Main Results:

• Identified 178 significantly differentially expressed genes (DEGs), including IL1β, TNF, TREM1, IL18R1, and IL18RAP.
• DEGs were enriched in immune response, inflammatory response, and platelet activation pathways.
• Protein-protein interaction network analysis revealed 18 hub genes and two significant modules.

Conclusions:

• This study provides insights into the molecular mechanisms of pediatric atopic dermatitis.
• The identified DEGs and hub genes represent potential diagnostic biomarkers and therapeutic targets for infant AD.