Additionally, through IB assays, we found that the levels of GFAT1 in Tu‐ECs were altered in a generally parallel trajectory to those in tumor cells, and supplementation with sEVsUM‐UC‐3‐OEGF evoked an increase in Tu‐ECs, while DON prominently reduced GFAT1 expression in Tu‐ECs (Figure 7J). Here, GFPT1 is linked to neoplasm.