Lymphatic Vessel TumorsNeoplasms, Vascular TissueLamininReceptors, LamininBlood VesselsTumor Markers, BiologicalTumor Necrosis Factor-alphaTumor BurdenCell Line, TumorBasement MembraneLymphatic VesselsNeoplasms, ExperimentalWilms TumorNeovascularization, PathologicRetinal VesselsCell AdhesionGenes, Tumor SuppressorCarcinoid Tumor