Novel Immune-Related Genetic Expression for Primary Sjögren's Syndrome.

To identify novel immune-related genes expressed in primary Sjögren's syndrome (pSS). Gene expression profiles were obtained from the Gene Expression Omnibus (GEO) database, and differentially expressed genes (DEGs) were screened. The differences in immune cell proportion between normal and diseased tissues were compared, weighted gene co-expression network analysis was conducted to identify key modules, followed by a protein-protein interaction (PPI) network generation and enrichment analysis.