Evaluation of radiolabelled bombesin analogues for receptor-targeted scintigraphy and radiotherapy
نویسندگان
چکیده
منابع مشابه
Peptide receptor imaging of prostate cancer with radiolabelled bombesin analogues.
Prostate Cancer (PC) is a type of cancer that is often diagnosed at very early stages due to improved detection among man in the Western world. Current imaging techniques are not optimal to determine extent of minimal early stage PC even though this is of great clinical importance. Human PC and high-grade PIN have shown high Gastrin-Releasing Peptide Receptor (GRPR) expression, while normal pro...
متن کاملSynthesis and evaluation of a new radiolabeled bombesin analogue for diagnosis of GRP receptor expressing tumors
Introduction: Bombesin (BN), a 14-amino acid neuropeptide, shows high affinity for the human GRP (gastrin releasing peptide) receptors, which are overexpressed by a variety of cancers, including prostate, breast, pancreas, gastrointestinal, and small cell lung cancer. Aim was to prepare [6-hydrazinopyridine-3-carboxylic acid (HYNIC0), D-Tyr6, D...
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PURPOSE Molecular imaging and targeted radiotherapy are emerging fields in nuclear oncology. Five human somatostatin receptors (hsstr1-hsstr5) are known to be overexpressed to some degree on various tumors, sstr2 being the most important one. Clinically used somatostatin based radiopeptides target exclusively sstr2. The aim of this study was to develop novel analogues with a broader sstr profil...
متن کاملPreclinical comparison of (111)In-labeled DTPA- or DOTA-bombesin analogs for receptor-targeted scintigraphy and radionuclide therapy.
UNLABELLED The 14-amino-acid peptide bombesin (BN) has a high affinity for the gastrin-releasing peptide (GRP) receptor that is expressed by a variety of tumors. Recently, high densities of GRP receptors were identified by in vitro receptor autoradiography in human prostate and breast carcinomas using [(125)I-Tyr(4)]BN as radioligand. Radiometal-labeled diethylenetriaminepentaacetic acid (DTPA)...
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Background: The fundamental principles of internal targeted alpha therapy for cancer were established many decades ago.The high linear energy transfer (LET) of alpha radiation to the targeted cancer cellscauses double strand breaks in DNA. At the same time, the short range radiation spares adjacent normal tissues. This targeted approach complements conventional external beam radiotherapy and ch...
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ژورنال
عنوان ژورنال: International Journal of Cancer
سال: 1999
ISSN: 0020-7136,1097-0215
DOI: 10.1002/(sici)1097-0215(19990517)81:4<658::aid-ijc24>3.0.co;2-p