Table 6.

Endothelial receptor levels in hemangioblastomas and RCCs (continued)

Receptor	Tissue	log(Hemangioblastoma)			log(RCC)	P value (t-test)	P value (Wilcoxon's rank sum test)
		Mean			SD
pVEGFR2	Endothelium	11.268	0.498	11.752	0.378	0.001	0.003
VEGFR total	Endothelium	12.977	0.478	13.081	0.859	0.639	0.192
pPDGFR	Endothelium	10.952	0.654	10.805	0.839	0.539	0.82
PDGFR total	Endothelium	13.078	0.659	12.842	0.851	0.333	0.947
VEGFR ratio	Endothelium	0.206	0.122	0.372	0.431	0.105	0.043
PDGFR ratio	Endothelium	0.145	0.067	0.157	0.077	0.608	0.602
Tie2	Endothelium	12.654	0.455	12.63	0.817	0.909	0.883
Tie2	Whole tumor	11.598	0.321	11.614	0.303	0.866	0.947
FGFR3	Endothelium	12.265	0.448	12.29	0.961	0.914	0.495
FGFR3	Whole tumor	11.439	0.224	11.338	0.106	0.0075	0.174
pFRS2	Endothelium	12.495	0.492	11.91	0.989	0.023	0.059
pFRS2	Whole tumor	11.452	0.258	11.258	0.089	0.003	0.003

RCC, renal cell carcinoma; SD, standard deviation; pVEGFR, phosphorylated vascular endothelial growth factor receptor; VEGFR, vascular endothelial growth factor receptor; pPDGFR, phosphorylated platelet-derived growth factor receptor; PDGFR, platelet-derived growth factor receptor; FGFR3, fibroblast growth factor receptor-3; pFRS2, phosphorylated fibroblast growth factor receptor substrate-2.