CD14 and rheumatoid arthritis: First, we performed GSEA using publicly available transcriptomic data on CD14+ cells from RA synovial fluid [18, 23], which revealed a significant enrichment (q-value < 0.001) of the in vitro miR-155-associated gene signature within the expression profile of RA SF CD14+ cells compared to RA PB CD14+ cells (Fig. 1C).