TABLE 1

Receptor-Binding Parameters for 2 Somatostatin Analogs and SSTr2 of A427-7 Human Non–Small Cell Lung Carcinoma Cells

Somatostatin analogIC50 (nM)Kd (nM)Bmax (fmol/mg)
64Cu-TETA-Y3-TATE4.87 ± 1.110.22 ± 0.025,440 ± 1,110
64Cu-CB-TE2A-Y3-TATE3.71 ± 1.090.61 ± 0.2411,400 ± 1,960