CDKN2A and rheumatoid arthritis: Dasatinib treatment had no significant effect on gene expression levels in cultured LN fibroblasts, although dasatinib restored the expression levels of TP53, CDKN2A, CDKN1A, and FOXO4 in RA(-risk) LN fibroblasts to the expression levels measured in control LN fibroblasts and partially restored the expression levels of IL6, NOTCH3, LMNB1, and CD38.