Abstract library

823 results for "NET gene expression profiling".
#2868 Differential Gene Expression May Predict Response to Somatostatin Analogues (SSAs) in Gastrointestinal (GI) Neuroendocrine Tumors (NETs)
Introduction: SSAs are commonly used to treat GI NETs as they have anti-secretory and antiproliferative effects. However, genetic markers predicting response to SSAs are lacking.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Prof. Dr. Dr. Andreas Teufel
Authors: Teufel A, Evert K, Itzel T, Evert M, ...
#3007 An mRNA-based Classifier Identifies PanNETs with Different Clinicopathological Characteristics
Introduction: Pancreatic neuroendocrine tumors (PanNETs) are a heterogeneous group of neoplasms that varies from indolent to highly aggressive diseases. Previous studies have suggested alterations of ATRX/DAXX as biomarkers of dismal prognosis, yet inconclusive data (especially in the metastatic setting) prevent those biomarkers to be used as routine clinical tests.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr Caterina Vicentini
#2834 Tumor-Promoting Effects of the Transcriptional Regulator CUX1 in PanNET
Introduction: Previously, we identified CUX1 as mediator of metastatic behaviour and poor differentiation in human insulinomas. CUX1 mediated tumor-promoting functions via enhancing proliferation, resistance to apoptosis and angiogenesis in-vitro and in-vivo.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: MD Sebastian Krug
#2986 Characterization of 142 Human Pancreatic Neuroendocrine Tumors: ATRX and DAXX Correlation with Clinical-Pathological Data
Introduction: Pancreatic neuroendocrine tumors (PNETs) are rare and heterogeneous neoplasms with a 10-year survival rate less than 30%. Up to 43% of them are driven by inactivating mutations in ATRX or DAXX. These are important players at chromatin remodeling, that when mutated prone cancer cells to initiate the alternative lengthening of telomeres (ALT). ALT phenotype correlates with in situ loss of expression of the proteins ATRX or DAXX and can be corroborated by telomere-FISH.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: DVM Tiago B Gaspar
#3072 Rb and p53 Status Determination by Immunochemistry Is Complementary in Routine Practice to Genetic Testing of Neuroendocrine Neoplasms
Introduction: Rb and p53 status may help distinguishing well from poorly differentiated neuroendocrine neoplasms (NEN) and may predict response to chemotherapy. Studies correlating Rb/p53 genetic and immunohistochemistry were performed on high-quality frozen samples with high throughput techniques efficient for copy number determination. This situation differs from routine practice in which small deletions may be hard to detect on formalin-fixed paraffin-embedded (FFPE) samples with a gene panel approach.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: Dr Jerome Cros
#2920 Mutation Spectrums Analysis of Colorectal Adenocarcinoma and Neuroendocrine Neoplasm Based on Same Genetic Background to Reveal Tumorigenesis
Introduction: The tumorigenesis of neuroendocrine neoplasm (NEN) are still ambiguous. The therapies of NENs in colon or rectum refer to adenocarcinomas (AC) when tumor metastasis, but the response was unsatisfactory which inspired us to explore the mutation difference.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr. Wen Cai
Authors: Cai W, Ge W, Wu D, Mao J, ...
#2906 Change of Lactate Transporter (MCT4) Expression in Pancreatic Microadenomas and Stages of Pancreatic Neuroendocrine Tumors
Introduction: Metabolic changes are observed in early and late stages of Pancreatic Neuroendocrine Tumors (PanNET) in mouse models. In human PanNET, RNA-expression analysis showed changes in glucose metabolism in more aggressive PanNET.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr. Konstantin Bräutigam
#2816 Germline Variants in Cancer Predisposing Genes in Young Adults with Neuroendocrine Tumors
Introduction: Advances in genomics have enabled the recognition of new cancer predisposing genes (CPG). There are few studies of CPG in neuroendocrine tumors (NET).
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Prof Rachel Riechelmann
#2916 Pretherapeutic Heterogeneity of Somatostatin Receptor Expression in Neuroendocrine Neoplasia: An Innovative Predictor of Response to Everolimus?
Introduction: In patients with bronchopulmonary or gastroenteropancreatic neuroendocrine neoplasms (NEN) the mTOR inhibitor everolimus may prolong progression-free survival (PFS). However, this is countered by potentially significant toxicity.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - others, not specified
Presenting Author: Dr. med. Christoph Wetz
Authors: Wetz C, Genseke P, Schatka I, Jann H, ...
#2739 Epigenetic Landscape of Pancreatic Neuro-Endocrine Tumors Reveals Distinct Cells of Origin and Means of Tumor Progression
Introduction: Pancreatic Neuroendocrine Tumors (PanNETs) arise from cells of the Islets of Langerhans. The majority of PanNETs are non-functional and their cell of origin cannot be defined analysing specific hormone production. Cell of origin assessment has proven importance to identify risk factors, prevent tumour development, and tailor treatment in many malignancies. Recent data on super-enhancer signatures has suggested a potential origin of PanNET from α- or β-cells. We and others have shown that distinct epigenetic profiles assessed by DNA methylation (DNAme) characterize genomic and prognostic groups of PanNET.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Annunziata Di Domenico