Abstract library

26 results for "atrx".
#856 DAXX and ATRX Loss Defines Chromosomal Instability and Poor Outcome in Pancreatic NET
Introduction: Chromosomal Instability (CIN) has been reported in pancreatic neuroendocrine tumors (pNETs) with poor outcome. However, no specific genetic background has been associated with CIN. Whole exome sequencing revealed mutations in DAXX (Death domain associated protein gene) and ATRX (ATR-X gene) in 40% of pNETs. DAXX and ATRX mutations in pNETs are associated with Alternative Lengthening of Telomeres (ALT) activation.
Conference: 11th Annual ENETS Conference 2014 (2014)
Category: ...none of the below
Presenting Author: PhD Ilaria Marinoni
Keywords: pNET, Daxx, Atrx, ALT, CIN
#1312 Epigenetic Remodeling upon DAXX and ATRX Loss in Pancreatic Neuro-endocrine tumors (pNETs)
Introduction: DAXX and or ATRX loss occur in 40% of sporadic pNETs. DAXX and ATRX participate in the cell epigenetic status maintenance. Epigenetic changes influence gene expression, function of telomeres and genomic stability. We hypothesize that DAXX/ATRX loss drives tumor progression in pNET through epigenetic changes affecting genomic stability.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Ilaria Marinoni
Keywords: DAXX/ATRX, epigenetic, CIN
#1259 Expressions of ATRX and DAXX in Hepatic Metastatic Pancreatic Nonfunctional Neuroendocrine Neoplasms
Introduction: Loss of ATRX or DAXX is common in well-differentiated pancreatic neuroendocrine neoplasms, and is correlated with higher tumor stage and shorter survival time.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Biomarkers
Presenting Author: Bao Xin
Authors: Xin B, Lou W, Ji Y, Xie Y, ...
#2128 Epigenetic Changes in DAXX and/or ATRX Negative Pancreatic Neuro-Endocrine Tumors
Introduction: The most commonly mutated genes in Pancreatic Neuroendocrine Tumors (PanNETs) are MEN1, DAXX and ATRX, which encode for proteins involved in epigenetic regulation. DAXX/ATRX mutated PanNETs are globally hypomethylated and behave clinically in a more aggressive way. Tumor pathways associated with these changes are still unclear. We hypothesize that DAXX/ATRX and MEN1 mutations mediate PanNET progression via epigenetic dysregulation.
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Annunziata Di Domenico
#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
#1186 Significance of ATRX/DAXX Expression and Alternative Lengthening of Telomeres in Insulinomas and Neuroendocrine Tumors of Small Intestine.
Introduction: ATRX and DAXX mutations associated with alternative lengthening of telomeres ( ALT) phenotype have been shown as one of the major altered pathways in pancreatic neuroendocrine tumors (PanNET).
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Dr.med.univ. Bettina Neumayer
#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
#1780 PD-L1 Is Expressed in a Subset of Pancreatic Neuroendocrine Tumors (pNET)
Introduction: Programmed death 1 (PD-1) is an immune inhibitory receptor expressed on several immune cells, interacting with two ligands, PD-L1 and PD-L2. The former is expressed in many human cancers and is used as a selection criterion for indication of checkpoint inhibitor therapies. PD-L1 is also a potential target for checkpoint inhibitors in pNET therapy, however no data on prevalence of PD-L1 expression and potential associations to clinico-pathologic features is available.
Conference: 14th Annual ENETS conference 2017 (2017)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: MMed Charalampos Saganas
#1523 Multiregion Analysis Reveal Evolutionary Patterns and a Chromosomal Instability Signature in Pancreatic Neuroendocrine Tumours
Introduction: Pancreatic neuroendocrine tumors (PNETs) are potentially lethal diseases that show variable degrees of proliferation and invasiveness. Although genetic subgroups have been suggested to give prognostic information the impact of clonal evolution to the development and outcome of PNETs remains unexplored.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Joakim Crona
#1828 5-Fluorouracile Plus Dacarbazine in Metastatic Digestive Neuroendoendocrine Tumors: Efficacy and Potential Biomarkers
Introduction: The 5-fluorouracile (5FU) + dacarbazine (DTIC) combination has been poorly evaluated in NET
Conference: 14th Annual ENETS conference 2017 (2017)
Category: Medical treatment – Chemotherapy, medical treatment - others
Presenting Author: Dr Louis de Mestier