FLT1 and neoplasm: Moreover, we could assign VEGFR1 and -R2, FGFR1, Ang2, Tie2, PDGF-B, PDGF-Rβ, eNOS, t-PA, and Tsp-1 as being tumor vascular-associated in this s.c. B16.F10 tumor model, as they exhibited a similar 15–50-fold enrichment.