Fig. 4From: Effect of the versatile bifunctional chelator AAZTA5 on the radiometal labelling properties and the in vitro performance of a gastrin releasing peptide receptor antagonistInternalization rate and specific surface bound uptake after the incubation of PC3 cells with 68Ga-, 177Lu-, 111In-labelled LF1 within 4 or 6 h at 37 °C. Receptor-specific internalization and specific surface bound activity expressed as percentage of the applied radioactivity. Nonspecific binding was determined in the presence of 1 μM Tyr4-BNBack to article page