[Lys3]–Bombesin

[Lys3]-Bombesin is a biological active peptide. (PET (Positron Emission Tomography) imaging of [Lys3]-bombesin is able to detect gastrin-releasing peptide receptor (GRPR) positive prostate cancer. An immunoconjugate of [Lys3]-bombesin and corresponding monoclonal antibody can specifically induce (CD64) -dependent monocyte and neutrophil-mediated lysis of small cell carcinoma.)