AXL and rheumatoid arthritis: Interestingly, it was found that the inhibition of miR-34a in macrophages caused the downregulation of proinflammatory cytokines' release [54] and, in line with these results, that RA DCs were characterised by unrestrained activation of miR-34a driving the uncontrolled production of inflammatory molecules secondary to Axl repression [55].