FIGURE 4. Biodistribution of MM-2Y in male BALB/c nu/nu mice carrying PC-3 tumors (n = 3 animals per time point). Animals were injected intravenously with ¹³¹I-MM-2Y, and percentage injected dose per gram of tissue (%ID/g) was measured in tumor and control organs after 15 min, 45 min, 135 min, and 24 h.