Abstract library

30 results for "methylation".
#212 Reduced MEN1 Gene Expression in Pulmonary Carcinoids Is Associated With Metastatic Disease
Introduction: Lung carcinoids are neuroendocrine tumors that can be classified as typical (TC) or atypical (AC) carcinoids. Previously, MEN-1 mutations and associated LOH of 11q13 have been implied in tumorigenesis.
Conference: 8th Annual ENETS Conference (2011)
Category: Basic
Presenting Author: MSc Dorian R.A. Swarts
#471 Alterations of Global and Gene-Specific DNA Methylation in Midgut Carcinoids
Introduction: Epigenetic alterations of DNA methylation are known to be associated with the clinical presentation of midgut carcinoids.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Omid Fotouhi
#936 Promoter Hypermethylation at RASSF1 is a Feature of Small Intestinal Neuroendocrine Tumors
Introduction: Promoter hypermethylation of RASSF1 has been reported in many tumor types.
Conference: 11th Annual ENETS Conference (2014)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Dr Anna Karpathakis
#62 Genome-wide DNA methylation profiling of pancreatic neuroendocrine tumors identifies distinct methylation profiles and differentially methylated gene promoter regions associated with low, medium and high grade tumors
Introduction: Integration of genetics and epigenetics has emerged as a powerful approach to studying cellular differentiation (Mikkelsen et al, 2009) and tumorigenesis (Shen et al, 2007). The study of DNA methylation is of particular importance in cancer, as causal involvement has been demonstrated and it is the most stable of all epigenetic modifications, making it a desirable marker for both early detection and treatment of tumors. Hypermethylation of CpG sites in gene promoter regions leads to decreased gene expression; if such a gene is a tumor suppressor, this leads to carcinogenesis. To date, there have been no studies of genome-wide DNA methylation profiling of NETs. This study sets out to determine the DNA methylation profiles of low, intermediate and high grade pancreatic NET liver metastases with the intention of identifying dysregulated biological pathways in the development of these tumors. A protocol for the analysis formalin-fixed paraffin embedded tissue (FFPE) has also been developed in order to study these tumors in significant numbers following this pilot study.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Dr Christina Thirlwell
#2139 Genome-Wide DNA Methylation Profiling of Pancreatic Neuroendocrine Tumors
Introduction: Frequent inactivation of epigenetic regulators ATRX and DAXX in pancreatic neuroendocrine tumors (PNETs) suggests an important role for epigenetic alterations in tumorigenesis. Few studies have been published regarding differential methylation patterns in PNETs and a thorough analysis of these alterations is currently lacking.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Gitta Boons
#440 The First Neuroendocrine Tumor Methylome Using Methylation-Specific Immunoprecipitation Followed by Second Generation Sequencing – MeDIP-seq
Introduction: Recently, the first cancer methylomes have been created which identified differential methylation at CpG island-shores (2kb upstream of CpG islands) to be of particular importance in the tumourigenic process.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Dr Christina Thirlwell
Authors: Thirlwell C, Sasmaz S, Dibra H, Feber A, ...
#1227 Molecular Profiling of Small Intestinal Neuroendocrine Tumours (SINETs)
Introduction: Aberrant DNA methylation plays an role in the pathogenesis of many cancers, however little is known about its role in SINET development.
Conference: 12th Annual ENETS Conference (2015)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Dr Anna Karpathakis
#205 Integrated Genome-Wide DNA Methylation and mRNA Expression Analysis of Pancreatic NETs Identifies Differential Activation of the Hypoxia Inducible Factor (HIF) Pathway Between Low and Intermediate Grade Tumors
Introduction: This is the first study to integrate DNA methylation and mRNA expression analysis in NETs. It is a powerful approach with which to identify disrupted biological pathways in NET pathogenesis.
Conference: 8th Annual ENETS Conference (2011)
Category: Basic
Presenting Author: Dr Christina Thirlwell
#676 Gene Silencing by Promoter Hypermethylation in SI-NETs
Introduction: Aberrant DNA methylation is an important feature of human cancer affecting corresponding gene expressions and clinical features in different tumors, including SI-NETs.
Conference: 10th Annual ENETS Conference (2013)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Omid Fotouhi
Keywords: SI-NET
#72 Reduced expression of p27 and the occurrence of CpG island methylator phenotype in insulinomas
Introduction: The molecular pathogenesis of sporadic insulinoma is unclear, though some of the genes were found to be slienced by promoter methylation. CpG island methylator phenotype (CIMP) was found in a number of common tumors and correlated with loss of expression of p27, which may contribute to the tumorigenesis of the tumors.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Dr Yuan-Jia Chen
Authors: Chen Y J, Zhou Q, Xiao Y, Zhu Y, ...
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