Endomucin (EMCN) IF revealed an increased vessel density but a reduction in perimeter in tumors derived from ATS1-KO cells (Figure 3e,f), resulting in a lack of significant differences in terms of total vessel area between WT and ATS1-KO tumors (Figure 3f), as previously described in other tumor studies [6,9]. Here, COL4A5 is linked to neoplasm.