Abstract library

971 results for "somatostatin receptor type 2".
#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
#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, ...
#2872 Characteristics of the Immunophenotype and the Status of Receptors for Somatostatin Type 2 and 5 of Typical and Atypical Carcinoids of the Lung
Introduction: Carcinoids of the lung are a wide range of tumors with various malignancy.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: MD Larisa Gurevich
#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
#2984 AGTR1 Is Overexpressed in Neuroendocrine Neoplasms, Regulates Secretion and May Serve as a Target for Molecular Imaging and Therapy
Introduction: Peptide receptor targeting has proven to be a pivotal tool for diagnostic imaging and radioligand therapy of neuroendocrine neoplasms (NENs), which frequently express somatostatin receptors (SSTRs) on their cell surface. However, up to 30 % of NEN patients do not benefit from SSTR-based approaches, others develop a resistance.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr. Carsten Grötzinger
Authors: Grötzinger C, Exner S, Schuldt C, Du J, ...
#2815 Unexpected High Rate of Metastases in Type 1 Gastric Neuroendocrine Neoplasia
Introduction: Gastric neuroendocrine neoplasms (gNEN) represent about 7.5% of gastroenteropancreatic NEN (gepNEN), classified in: type 1 (70-80%), related to autoimmune gastritis, type 2 (5%), related to Zollinger-Ellison syndrome in multiple endocrine neoplasia 1 and type 3 (15-20%), in absence of hypergastrinemia or mucosal atrophy.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Filomena Bottiglieri
#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, ...
#2745 Integrative Genomic Characterization Identifies Molecular Subtypes of Lung Carcinoids
Introduction: Lung carcinoids (LCs) are rare and slow growing primary lung neuroendocrine tumors. The WHO classify LCs into atypical and typical carcinoids. Recent studies have shown that the reproducibility of LCs classification and its prognostic efficacy have high interobserver variability
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr Saurabh V Laddha