TABLE 4

Biodistribution of 86Y-Labeled Antibody Formats in LNCaP Tumor–Bearing Male nu/nu Mice

Tissue
Antibody formatTime (h)BloodTumorLiverKidney
IgG418.4 (1.8)1.8 (0.5)5.3 (1.3)3.8 (0.6)
2415.9 (4.0)20.2 (2.0)5.2 (1.0)3.7 (0.7)
Miniantibody46.7 (1.2)0.8 (0.3)4.4 (0.9)4.9 (1.2)
244.0 (0.9)13.1 (3.6)11.0 (3.7)11.1 (2.5)
Diabody42.1 (0.6)1.5 (0.3)3.9 (0.6)64.1 (13.2)
240.1 (0.04)3.7 (0.8)4.7 (1.1)51.5 (9.4)
scFv40.23 (0.05)0.29 (0.04)0.53 (0.16)21.4 (5.5)
240.04 (0.04)0.54 (0.13)0.57 (0.1)11.8 (3.7)
  • Results are percentage of initial dose recovered in each tissue (average %ID/g), with SD in parentheses.