Abstract library

36 results for "profiling".
#1059 Genomic Profiling of Metastatic Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET) Patients in Precision-Medicine Era
Introduction: We have conducted molecular profiling through high-throughput molecular test as part of clinical practice for patients with advanced gastrointestinal (GI) cancer, or rare cancer including gastroenteropancreatic neuroendocrine tumors (GEP-NETs).
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Seung Kim
Authors: Kim S, Yoo K, Jung K, Lee S, ...
#2846 Whole Genome DNA Methylation Profiling Identifies Neuroendocrine Tumor Origin
Introduction: Determining the origin of a neuroendocrine tumor (NET) of unknown primary can be challenging. Liver metastases can originate from any organ in the body, while pulmonary NETs can be metastases but also primary tumors. This especially holds true for Multiple Endocrine Neoplasia Type 1 patients, who often have multiple primary pancreatic and intestinal NETs. It is important to know the origin of the primary tumor since resection or ablation is crucial in case of treatment with curative intent. Furthermore, the site of origin determines prognosis, treatment options and eligibility for clinical trials.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Wenzel M Hackeng
#585 Global microRNA profiling of small intestine neuroendocrine tumors (SI-NETs) and establishment of a method to study serum microRNA expression from the same tumors
Introduction: MicroRNAs (miRNAs) are important post-transcriptional regulatorsin biological processes and function either as tumor suppressors or oncogenes.
Conference:
Category: Basic
Presenting Author: Su-Chen Li
Authors: Li S C, Martijn C, Essaghir A, Lloyd R, ...
#2086 miRNA Expression Defines Novel Subgroups of Small Intestinal Neuroendocrine Tumors
Introduction: Epigenetic dysregulation frequently occurs in cancers. Here we present the largest survival related miRNA profiling study to date of small intestinal neuroendocrine tumors (SI-NETs).
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: PhD Yvonne Arvidsson
#360 High Resolution (Epi)genomic Analysis Comparing Pulmonary Carcinoids with a Favorable and a Poor Disease Outcome
Introduction: Lung carcinoids are a heterogenous group of neuroendocrine tumors. MEN1 mutations and 11q22-q25 deletions have been implied in their tumorigenesis. Very few genome wide and methylation studies have been conducted to further elucidate molecular mechanisms underlying tumorigenesis.
Conference:
Category: Basic
Presenting Author: Msc Dorian R.A. Swarts
#462 Genome-Wide Expression Profiling Reveals Downregulation of OTP and CD44 and Upregulation of RET as Indicators of Poor Prognosis in Lung Carcinoids
Introduction: Lung carcinoids comprise a heterogeneous group of neuroendocrine tumors. Only few parameters have been identified that correlated with poor disease outcome, including 11q22-q25 deletions. New biomarkers are required to further improve diagnosis and prediction of prognosis.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: MSc Dorian Swarts
#424 Role of MicroRNAs in Small Intestine Neuroendocrine Tumors
Introduction: Small intestinal neuroendocrine tumors (SI-NETs) arise from enterochromaffin cells, which belong to the endocrine system. MicroRNAs (miRs) are post-transcriptional regulators. They control multiple biological processes often functioning either as tumor suppressor genes or oncogenes.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Su-Chen Li
Authors: Li S C, Martijn C, Essaghir A, Lloyd R, ...
#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, ...
#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
#654 Identification of Signaling Pathways Involved in Lung Carcinoid Progression Using Gene Expression Profiling
Introduction: Lung carcinoids are well-differentiated neuroendocrine tumors (NETs) usually associated with a favorable prognosis. Mechanisms underlying progression are poorly understood.
Conference: 10th Annual ENETS Conference 2013 (2013)
Category: Non digestive NETs (bronchial, MTC, pheochromocytoma)
Presenting Author: MSc Dorian Swarts