Abstract library

15 results for "Sipos".
#562 Expression of Chromosome 18 Related Tumor Suppressor Proteins in Ileal Neuroendocrine Tumors
Introduction: The genetic alterations in ileal neuroendocrine tumors (iNETs) are poorly
characterized. The most frequent chromosomal aberration is the loss of one
chromosome 18 in iNETs, however, the relevance of this alteration is unclear.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Dr. Tobias Henopp
#564 Genetic Alterations in Glucagon Cell Adenomatosis
Introduction: Glucagon cell adenomatosis (GCA) was recently recognized by us as a multifocal neoplastic disease of the endocrine pancreas unrelated to MEN-1. Multiple micro- and a few macrotumors are found on the background of a hyperplasia of glucagon cells. The disease may cause unspecific abdominal symptoms and only rarely a glucagonoma syndrome. Recently a mutation in the glucagon receptor (GCGR) gene was described in one GCA
patient.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Dr. Tobias Henopp
Keywords: glucagon
#565 Proliferative Activity is Not Associated with Tumor Aggressiveness in Ileal Neuroendocrine Tumors
Introduction: The accuracy of the new WHO grading system for neuroendocrine neoplasms has not yet been validated for ileal neuroendocrine tumors (iNETs).
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: MD Tobias Henopp
#700 Comparative Expression Analysis of Chromosome 18 Related miRNAs in Ileal NET with and without Chr18 Loss
Introduction: MicroRNAs (miRs) play important roles in many kinds of biological processes. Because the (partial) loss of one chromosome 18 (Chr18) is a frequent event in ileal NETs (iNETs), we assessed the potential deregulation of miR-expression in these patients.
Conference: 10th Annual ENETS Conference (2013)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Maike Hoffmeister
Keywords: NET, mir-expression
#730 Loss of Chromosome 18 in Neuroendocrine Tumors of the Midgut
Introduction: The genetic alterations in neuroendocrine tumors (NET) of the midgut, in particular of the appendix (aNET), are poorly characterized. The most frequent chromosomal aberration in ileal NET (iNET) is the loss of one chromosome 18. The relevance of this alteration is unclear.
Conference: 10th Annual ENETS Conference (2013)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: MD Tobias Henopp
Keywords: chr18
#1038 Co-Expression of Somatostatin and CXCR4 Receptors as Targets for Diagnostics and Treatment in Intestinal Neuroendocrine Neoplasms.
Introduction: Somatostatin receptors (SSTR) are widely distributed in well-differentiated neuroendocrine tumors (NET) and serve as primary targets for diagnostics and treatment. An overexpression of the chemokine receptor CXCR4, in contrast, is considered to be present mainly in highly proliferative and advanced carcinomas.
Conference: 12th Annual ENETS Conference (2015)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Dr. Daniel Kaemmerer
Keywords: sstr
#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)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Dr.med.univ. Bettina Neumayer
#1202 Role of Amplifications in the PIK3/Akt/mTOR-Pathway in Neuroendocrine Tumors of the Small Intestine
Introduction: Amplifications in the PIK3/Akt/mTOR pathway can lead to increased proliferation and reduced apoptosis, resulting in the development of various cancers. Recently, amplifications of Akt1/2, PDGFRα/β and mTOR in small intestine neuroendocrine tumors (siNET) have been shown.
Conference: 12th Annual ENETS Conference (2015)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Maike Hoffmeister
#1484 Neuroendocrine Tumors of the Appendix Are Probably Harmless Neoplasms
Introduction: Appendiceal neuroendocrine tumors (aNETs) have a 5-year survival rate between 74% and 95% according to recent data from Cancer Registry of Norway and the United States, respectively. However, in the daily clinical practice one almost never encounters patients suffering from aNETs with distant metastasis or dying of the disease.
Conference: 13th Annual ENETS conference (2016)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Maike Nieser
Keywords: NET
#1490 Even Malignant Appendiceal Neuroendocrine Tumors Exhibit No Recurrent Chromosomal Alterations
Introduction: Neuroendocrine tumors (NETs) of the midgut are located in the ileum (iNET), caecum or appendix (aNET). Despite of the similar origin, NETs of the ileum and the appendix behave remarkably different. iNETs show high malignant potential, which manifests with early lymph node or liver metastases. Genetically, the loss of chromosome 18 (Ch18) in 60-74% of cases is the most frequent alteration in iNETs. aNETs are often incidental findings, rarely show metastases, and no chromosomal alterations are known.
Conference: 13th Annual ENETS conference (2016)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Maike Nieser
Keywords: NET
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