TABLE 1

Pharmacokinetics of 203Pb-DOTA-Re(Arg11)CCMSH in B16/F1 Murine Melanoma–Bearing C57 Mice

Tissue5 min30 min1 h2 h4 h24 h48 h2 h NDP
%ID/g
 Tumor3.83 ± 0.878.79 ± 1.6312.00 ± 3.2011.87 ± 3.249.86 ± 1.864.35 ± 0.243.43 ± 1.120.88 ± 0.11
 Brain0.35 ± 0.090.11 ± 0.040.04 ± 0.030.05 ± 0.030.02 ± 0.010.05 ± 0.040.06 ± 0.080.04 ± 0.02
 Blood6.59 ± 0.572.10 ± 0.300.73 ± 0.090.39 ± 0.170.21 ± 0.090.28 ± 0.290.12 ± 0.030.64 ± 0.10
 Heart3.07 ± 0.470.83 ± 0.070.33 ± 0.100.16 ± 0.050.06 ± 0.110.07 ± 0.070.07 ± 0.070.22 ± 0.04
 Lung7.08 ± 1.382.24 ± 0.550.88 ± 0.050.41 ± 0.240.25 ± 0.120.22 ± 0.060.14 ± 0.100.57 ± 0.06
 Liver2.49 ± 0.341.68 ± 0.221.25 ± 0.200.96 ± 0.260.62 ± 0.150.42 ± 0.070.36 ± 0.051.33 ± 0.39
 Spleen2.54 ± 0.570.56 ± 0.290.43 ± 0.230.30 ± 0.090.26 ± 0.100.29 ± 0.150.15 ± 0.140.33 ± 0.08
 Stomach1.42 ± 0.230.75 ± 0.150.31 ± 0.120.17 ± 0.130.06 ± 0.020.25 ± 0.260.14 ± 0.100.14 ± 0.05
 Kidneys35.09 ± 6.4210.31 ± 1.028.42 ± 0.367.78 ± 1.427.34 ± 0.313.69 ± 0.583.67 ± 0.509.0 ± 2.0
 Muscle1.64 ± 0.630.44 ± 0.270.13 ± 0.030.05 ± 0.030.08 ± 0.050.06 ± 0.050.07 ± 0.030.05 ± 0.03
 Pancreas1.76 ± 0.620.59 ± 0.350.40 ± 0.170.21 ± 0.070.11 ± 0.030.17 ± 0.110.09 ± 0.040.31 ± 0.11
 Bone2.71 ± 0.161.89 ± 0.411.38 ± 0.161.01 ± 0.220.62 ± 0.181.11 ± 0.261.12 ± 0.261.05 ± 0.23
 Skin3.58 ± 1.103.20 ± 0.211.14 ± 0.160.20 ± 0.070.28 ± 0.130.39 ± 0.310.37 ± 0.040.30 ± 0.08
%ID
 Intestines4.60 ± 0.411.53 ± 0.120.95 ± 0.070.89 ± 0.060.55 ± 0.140.29 ± 0.050.27 ± 0.081.10 ± 0.18
 Urine24.8 ± 5.074.73 ± 2.5182.75 ± 3.9889.02 ± 0.8694.15 ± 0.3193.34 ± 1.6594.56 ± 1.1391.34 ± 1.56
Ratio
 Tumor to blood0.584.1916.4430.4446.9515.5428.581.38
 Tumor to kidneys0.110.851.431.531.341.180.930.10
 Tumor to liver1.545.239.6012.3615.9010.369.530.66
 Tumor to muscle2.3419.9892.31237.40123.2554.3849.0017.60
  • Data are presented as %ID/g or as %ID (mean ± SD, n = 5).