Abstract library

704 results for "Somatostatin receptor".
#2905 DNA Methyltransferase Inhibitor Hydralazine Induces Upregulation of Somatostatin Type 2 Receptors in Human Neuroendocrine Tumor Cells
Introduction: Epidrugs like DNA methyltransferase inhibitors (DNMTi) can increase somatostatin receptor type 2 (SST2) expression in neuroendocrine tumor (NET) cells in vitro and in vivo. This effect could be used for NET patients with low SST2 expression who are currently ineligible for somatostatin analogue (SSA) treatment. However, the DNMTi known to stimulate SST2 have either a high toxicity profile or are not yet approved.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr Julie Refardt
#3000 Patients with Somatostatin Receptor Type 2-Negative Neuroendocrine Tumors Have Sustained Inferior Survival Rates in a Propensity Score-Matched Analysis
Introduction: Sufficient expression of somatostatin receptor type 2 (SST2) in neuroendocrine tumors (NETs) is crucial for treatment with unlabelled somatostatin analogues (SSAs), or peptide receptor radionuclide therapy (PRRT) using radio-labelled SSAs. Impaired prognosis has been described for SST2-negative NET patients, however studies comparing matched SST2-positive and -negative subjects are missing.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Dr Julie Refardt
#2853 Succinate Dehydrogenase B (SDHB) Immunohistochemical Expression in Pancreatic Neuroendocrine Tumours and Correlation with Somatostatin Receptor Immunohistochemistry
Introduction: The established category of succinate dehydrogenase (SDH) deficient neoplasms includes several endocrine tumours with recent evidence that pancreatic neuroendocrine tumours (PNETs) could be included in this tumour group. The SDH complex is composed of four subunits (A-D) but loss of immunohistochemical (IHC) expression for SDHB indicates bi-allelic inactivation of any SDH component and is used as a marker for syndromic disease.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Pathology - grading, staging
Presenting Author: Dr. Niall Swan
Authors: Swan N, Nadeem N, Crowley R, ...
#2947 Al18F-NOTA-Octreotide PET Imaging of the Somatostatin Receptor: First Comparison with 68Ga-DOTATATE in Neuroendocrine Tumor Patients
Introduction: Practical and economic challenges limit the widespread use of 68Ga-labeled somatostatin analog (SSA) PET, the current standard for somatostatin receptor imaging. A promising 18F-labeled SSA, Al18F-NOTA-octreotide (Al18F-OC), has recently been introduced.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Elin Pauwels
#2777 Tumor-to-Liver Ratio of Ga-68-DOTATOC PET/CT as a Prognostic Parameter in Metastatic, Well-Differentiated Gastroenteropancreatic-Neuroendocrine Tumor Patients Who Received Lanreotide Therapy
Introduction: Lanreotide is a long-acting somatostatin analogue with proven antitumor effect against metastatic, well-differentiated gastroenteropancreatic-neuroendocrine tumors (GEP-NETs). Ga-68-DOTATOC PET/CT is a sensitive imaging technique for NETs by targeting somatostatin receptors.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Yong-Il Kim
Authors: Kim Y I, Yoo C, Ryoo B Y, Ryu J S, ...
#2965 Molecular Signature of Rectal Neuroendocrine Neoplasia
Introduction: Rectal neuroendocrine tumors are rare neuroendocrine neoplasias (NEN). Little is known about prevalence and type of somatostatin receptor subtypes (sstr) expression and somatic mutations in relation to long-term clinical outcome.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr. Nicole Unger
Authors: Unger N, Theurer S, Herold T, Weber F, ...
#2787 64Cu-DOTATATE PET/CT Imaging of Patients with Neuroendocrine Neoplasms Can Be Performed between 1 and 3 Hours after Radiotracer Injection: Comparison of Lesion Detection Ability and Contrast
Introduction: PET/CT imaging of patients with neuroendocrine neoplasms (NEN) 1 hour (h) post injection (pi) of 64Cu-DOTATATE has shown superiority in lesion detection when compared to other clinically available somatostatin receptor imaging (SRI) modalities.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: MD Mathias Loft
#2791 NEN Skeletal Metastasis Performance and the Correlation with Cell Proliferation: 112 Cases of 68Ga-DOTA-TATE Results Analysis
Introduction: 68Ga-DOTA-TATE PET/CT plays an important role in neuroendocrine neoplasm(NEN)diagnosis and biological charecteristcs evaluation.Skeleton is the second common metastatic organ in NEN after liver and it affects the quality of patient’s life.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Jiangyuan Yu
Authors: Xie Q, Lu M, Li J, Li N, ...
#2988 Epigenetic Treatment with Histone Deacetylase Inhibitor Enhances Uptake of [111In]In-DOTA-TATE by Increased SST2 Expression on Neuroendocrine Tumor Cells
Introduction: The somatostatin-2 receptor (SST2) is a target for peptide receptor radionuclide therapy (PRRT) in neuroendocrine tumors (NETs). By using epigenetic drugs, which can regulate gene transcription, PRRT efficacy may be further improved due to enhanced SST2 expression.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: MSc Ilva Klomp
#2820 Efficacy of Peptide Receptor Radionuclide Therapy for Esthesioneuroblastoma
Introduction: Esthesioneuroblastoma (ENB) is a rare malignancy with limited therapeutic options when unresectable or metastatic. The overexpression of cell-surface somatostatin receptors in ENB is a potential molecular target making it amenable to peptide receptor radionuclide therapy (PRRT). High-level evidence supporting PRRT has been published for unresectable gastroenteropancreatic neuroendocrine tumours; however, data is limited for PRRT efficacy for ENB.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Olfat Kamel Hasan