CXCR4 and rheumatoid arthritis: Subsequently, we analyzed the transcriptomic results of Celastrol treatment of RA, and found that the down-regulated genes mainly included TNF, FOS, ITGAM, CXCR4, HSP90AA1, PAX6, SPI1, PTGS2, ASCL1, GAD1, KCNA1, FOXG1, IRF4, LCK, EGR2, EOMES, SPP1, CCL3, BMP2, FLT3 and other targets.