In this sense, certain components of the somatostatin system, especially somatostatin-receptors (SST1-5, encoded by the somatostatin receptor 1-5 genes (SSTR1-5)), are expressed in both normal and tumor prostate tissues, where they may play a relevant role in the development and progression of this disease [6,7,8,9]. Here, SSTR1 is linked to neoplasm.