Table 4 Comparative biodistribution of 99mTc-labeled G3 variants in BALB/C nu/nu mice bearing SKOV3 xenografts at 4 and 24 h pi.
[99mTc]Tc(CO)3-H6-G3 | [99mTc]Tc(CO)3-G3-H6 | [99mTc]Tc(CO)3-(HE)3-G3 | [99mTc]Tc(CO)3-G3-(HE)3 | |
|---|---|---|---|---|
4 h | ||||
Blood | 0.19 ± 0.06c | 0.14 ± 0.03e | 0.18 ± 0.03f | 0.36 ± 0.07 |
Salivary glands | 1.9 ± 0.2c | 1.5 ± 0.2 | 0.7 ± 0.2b,d | 1. 1 ± 0.3 |
Lung | 0.5 ± 0.1a | 0.7 ± 0.1 | 0.34 ± 0.02b,d,f | 0.6 ± 0.1 |
Liver | 5.5 ± 0.3c | 4.2 ± 0.9 | 1.8 ± 0.1b,d,f | 3.1 ± 0.7 |
Spleen | 0.9 ± 0.1a | 1.1 ± 0.1 | 0.47 ± 0.04b,d,f | 1.0 ± 0.1 |
Stomach | 0.8 ± 0.1 | 0.8 ± 0.2 | 0.4 ± 0.1b,d | 0.7 ± 0.1 |
Kidney | 297 ± 16a,c | 220 ± 30 | 237 ± 30 | 211 ± 41 |
Tumor | 9 ± 3 | 8 ± 2 | 9 ± 1 | 7 ± 1 |
Muscle | 0.21 ± 0.03 | 0.3 ± 0.1 | 0.11 ± 0.01b,d,f | 0.23 ± 0.04 |
Bone | 0.9 ± 0.1 | 0.9 ± 0.3 | 0.4 ± 0.1b,d | 0.7 ± 0.2 |
24 h | ||||
Blood | 0.07 ± 0.01c | 0.08 ± 0.01e | 0.09 ± 0.01f | 0.15 ± 0.01 |
Salivary glands | 1.0 ± 0.3 | 1.5 ± 0.2e | 0.4 ± 0.1d | 0.8 ± 0.2 |
Lung | 0.3 ± 0.1 | 0.7 ± 0.1 | 0.3 ± 0.1 | 0.4 ± 0.1 |
Liver | 3.6 ± 0.4a,c | 4.6 ± 0.4 | 1.2 ± 0.2b,d,f | 2.6 ± 0.1 |
Spleen | 0.9 ± 0.4 | 1.1 ± 0.1 | 0.4 ± 0.1b,d,f | 0.9 ± 0.1 |
Stomach | 0.4 ± 0.1 | 0.9 ± 0.1 | 0.22 ± 0.04b,d,f | 0.40 ± 0.03 |
Kidney | 177 ± 25 | 212 ± 31 | 134 ± 16b | 144 ± 7 |
Tumor | 8 ± 2c | 9 ± 1 | 7 ± 2 | 5 ± 1 |
Muscle | 0.16 ± 0.02 | 0.31 ± 0.04 | 0.08 ± 0.02d,f | 0.20 ± 0.04 |
Bone | 0.5 ± 0.1c | 1.0 ± 0.3 | 0.3 ± 0.1d,f | 0.8 ± 0.1 |