Abstract library

276 results for "differentially expressed genes".
#2031 Screening of Differentially Expressed Genes in Gastric Neuroendocrine Neoplasms Based on Human Transcriptome Array
Introduction: Gastric neuroendocrine neoplasms (g-NENs) are a heterogeneous group of tumors.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Yaling Wei
Authors: Wei Y, Bai J, He N, Hua X, ...
#1320 Are eIFs Ingredients for Neuroendocrine Tumorigenesis?
Introduction: Neuroendocrine tumors (NETs) develop in almost any organ, therefore they are a very heterogeneous group of tumors. One of the major activities in every cell is the translation of mRNA to the corresponding protein, which plays an important role in cancer development. Crucial for this translation process are eukaryotic initiation factors (eIFs), which are themselves regulated by the mammalian target of Rapamycin (mTOR)-pathway. Mutation or deregulated expression of eIFs influences cell growth and proliferation, contributing to carcinogenesis. The incidence of NETs has increased fivefold over the last three decades.
Conference: 13th Annual ENETS conference (2016)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: MSc. Nadine Gantenbein
#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
#529 Alternative Splicing and Differential Gene Expression in Pancreatic NETs
Introduction: Protein isoforms resulting from differentially spliced mRNA may constitute peculiar drug targets or markers for cancer diagnosis. We here present a new DNA array that allows identification of splice variation and differential expression for 357 G protein-coupled receptors (GPCR) and 11 proteins of the extracellular matrix.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Dr. Carsten Grötzinger
Keywords: pNET
#2275 Analysis of Gene Expression Patterns of Rectum Neuroendocrine Tumors (NET) Versus Healthy Tissue Reveals Alterations in the MAPK and WNT Signaling Pathways
Introduction: The neuroendocrine tumors (NETs) of the rectum are rare but increasing in incidence, by means of improved endoscopic techniques and histological reporting. They often occur as small polypoid lesions and G1, and in most cases an incidental finding at endoscopy.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr. Franziska Briest
#357 Alternative Splicing and Differential Gene Expression in Pancreatic NETs
Introduction: Alternative splicing is an important mechanism to increase diversity of the proteome in higher organisms. These protein isoforms can provide as a selective drug target or marker for cancer diagnosis.
We present here a new DNA array that allows identification of splice variation and differential expression of 357 G protein-coupled receptors (GPCR) and 11 proteins of the extracellular matrix.
Conference:
Category: Basic
Presenting Author: Jan Lennart Körner
#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, ...
#1161 Comparative Proteomic Analysis of Human Insulinoma and Its Clinical Implications in Pancreatic Neuroendocrine Tumors
Introduction: Insulinoma is the most common functional PNET. Its molecular tumorigenesis is largely unknown and proteomic study on insulinoma has not been reported
Conference: 12th Annual ENETS Conference (2015)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Dr Yuan-Jia Chen
Authors: Qiao X W, Song Y L, Bai C M, Zhu L 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
#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