Inhibition of s.c. tumor formation by anti-PSCA mAbs.
(A–E). Male SCID mice were injected s.c.
with 1 × 106 PC3-PSCA (A and
B), PC3 (C), or LAPC-9 (D
and E) cells in conjunction with i.p injection of either
200 μg of 3C5 (A and D) or 1G8
(B and C) mAb (■) or 200 μg
control mouse IgG (A–D, ⧫). Antibody
doses administered in E were either 20 (×), 200
(▴), or 500 μg (■), and PBS (⧫) was used as a
control. All treatments were carried out three times a week for 2 weeks
(six injections total) on eight mice in each group. The data are
presented as mean tumor volume (mm3) ± SEM.