TABLE 2

Biodistribution Data and Tissue Radioactivity Ratios of 111In-EG4 in INR1G9-hGIPr Xenografts

Organ1 h1 h blocked1 h/Gelofusine4 h24 h
Blood0.4 ± 0.10.6 ± 0.020.5 ± 0.10.04 ± 0.010.01 ± 0.00
Heart0.2 ± 0.030.3 ± 0.060.3 ± 0.130.1 ± 0.020.1 ± 0.03
Liver2.0 ± 0.52.7 ± 0.72.6 ± 0.61.6 ± 0.12.2 ± 0.3
Spleen3.6 ± 0.94.5 ± 0.64.6 ± 0.52.5 ± 0.4Not determined
Lung7.8 ± 0.913.1 ± 3.07.2 ± 1.42.0 ± 0.70.9 ± 0.3
Kidney217 ± 39209 ± 17125 ± 5205 ± 34173 ± 28
Stomach0.6 ± 0.10.7 ± 0.10.7 ± 0.20.3 ± 0.060.3 ± 0.04
Intestine0.5 ± 0.21.0 ± 0.071.4 ± 0.40.5 ± 0.60.2 ± 0.03
Adrenal1.5 ± 0.80.6 ± 0.51.4 ± 0.41.9 ± 1.50.7 ± 0.2
Pancreas0.2 ± 0.060.2 ± 0.040.2 ± 0.060.1 ± 0.010.06 ± 0.03
Muscle0.2 ± 0.040.1 ± 0.050.3 ± 0.160.1 ± 0.060.06 ± 0.03
Bone0.4 ± 0.080.3 ± 0.040.8 ± 0.450.3 ± 0.060.3 ± 0.3
INR1G9 tumor10.4 ± 2.22.0 ± 0.29.2 ± 0.76.6 ± 1.33.6 ± 0.7
Tumor/blood28 ± 921 ± 6156 ± 22320 ± 51
Tumor/lung1.2 ± 0.031.3 ± 0.22.4 ± 0.93.1 ± 1.2
Tumor/kidney0.05 ± 0.010.07 ± 0.010.03 ± 0.000.02 ± 0.01
Tumor/muscle64 ± 1432 ± 1754 ± 19.3168 ± 32
  • Data are presented as mean ± SD (n = 4) %IA/g of tissue; blocking studies were performed in presence of 20 nmol of GIP(1–30).