Identification of Potential Hub Genes in Alopecia Areata

The study investigates the genetic basis of alopecia areata (AA), an immune-mediated chronic hair loss condition, by analyzing gene expression data from AA patients and healthy controls. Researchers identified 173 differentially expressed genes (DEGs) enriched in pathways related to cytokines, chemokines, and hair follicle development. Through protein-protein interaction (PPI) network analysis and validation with three additional datasets, 24 hub genes were identified, with five being upregulated. The study also identified 26 differentially expressed long non-coding RNAs (DElncRs), including nine upregulated ones in the cytoplasm. A regulatory network involving mRNA, miRNA, and lncRNA was constructed, highlighting the potential roles of CD8A, mir-185-5p, and FOXD2-AS1 in AA pathogenesis. CD8A and FOXD2-AS1 were suggested as potential diagnostic markers and therapeutic targets for AA.