ARF6 and neoplasm: We also found that KIT‐positive EVs contain the small GTPase ADP‐ribosylation factor 6 (ARF6) (Figure 3E,F), which has been implicated in the shedding of (tumour‐derived) microvesicles (Clancy et al., 2019; Muralidharan‐Chari et al., 2009).