Healthy non-tumor-bearing mice (n = 8-9 per group) were treated for 1 week with vehicle (Veh); Vasculotide 250 ng/2 days IP (VT); sunitinib 60 mg/kg/day PO (SU); or VT + SU. Tie2 immunoprecipitates from lung, kidney, or liver homogenates were pooled from two mice per treatment group and immunoblotted with an anti-Tie2 antibody ('Tie2') or an anti-phosphotyrosine antibody ('p-Tie2').Densitometry analysis of immunoblots from (A). pTie2/Tie2 ratios were internally normalized to the vehicle group within each blot. Means ± SEM and P values (unpaired t-tests) are depicted. 