Methylation of somatostatin receptor 2 gene in neuroendocrine tumours as a predictor of tumour response to peptide receptor radionuclide therapy
نویسندگان
چکیده
منابع مشابه
Peptide receptor radionuclide therapy (PRRT) of neuroendocrine tumors with somatostatin analogues.
BACKGROUND Clinical experience with the radiolabeled somatostatin analogues 90Y-DOTATOC and, more recently, 177Lu-DOTATATE, is ongoing since more than a decade in few centers. Dosimetric studies demonstrated that 90Y-DOTATOC and 177Lu-DOTATATE are able to deliver high doses to somatostatin receptor sst2-expressing tumors and low doses to normal organs. RESULTS AND CONCLUSIONS Clinical studies...
متن کاملJoint guidance on peptide receptor radionuclide therapy in neuroendocrine tumors.
A practical guidance document on peptide receptor radionuclide therapy (PRRNT) in neuroendocrine tumors is being published this month in the European Journal of Nuclear Medicine and Molecular Imaging (1). This document is the result of close collaboration among experts in the field of PRRNT from the International Atomic Energy Agency; the Radionuclide Therapy, Oncology, Dosimetry, and Radiophar...
متن کاملPeptide receptor radionuclide therapy.
On their plasma membranes, cells express receptor proteins with high affinity for regulatory peptides, such as somatostatin. Changes in the density of these receptors during disease, for example, overexpression in many tumors, provide the basis for new imaging methods. The first peptide analogues successfully applied for visualization of receptor-positive tumors were radiolabeled somatostatin a...
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Peptide receptor radionuclide therapy (PRRT) consists of the systemic administration of a synthetic peptide, labeled with a suitable β-emitting radionuclide, able to irradiate tumors and their metastases via internalization through a specific receptor (usually somatostatin S2), over-expressed on the cell membrane. After almost 2 decades of experience, PRRT, with either (90)Y-octreotide or (177)...
متن کاملSomatostatin Receptor Based Imaging and Radionuclide Therapy
Somatostatin (SST) receptors (SSTRs) belong to the typical 7-transmembrane domain family of G-protein-coupled receptors. Five distinct subtypes (termed SSTR1-5) have been identified, with SSTR2 showing the highest affinity for natural SST and synthetic SST analogs. Most neuroendocrine tumors (NETs) have high expression levels of SSTRs, which opens the possibility for tumor imaging and therapy w...
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ژورنال
عنوان ژورنال: Clinical Medicine
سال: 2019
ISSN: 1470-2118,1473-4893
DOI: 10.7861/clinmedicine.19-2-s123