NTS and Ewing sarcoma: Neurotensin (NT) is a 13 amino acids peptide (pEYENKPRRPYIL) targeting three different receptors (NTR1, NTR2, NTR3) over expressed in different human cancers including Ewing Sarcomas, meningiomas, astrocytomas, medulloblastomas and pancreatic carcinomas [64].