Abstract library

247 results for "chromosome 18".
#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
#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
#262 Changes on Chromosome 18 are Involved in Sporadic and Familial Ileal Carcinoid Tumor Development
Introduction: Small intestine neuroendocrine tumors (ileal carcinoid) is generally considered a sporadic disease. We have identified nine families with an ileal carcinoid tumor diagnosed in two or more individuals.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: Professor Eva Tiensuu Janson
#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
#2281 A Novel Classification of Pancreatic Neuroendocrine Tumors (pNETs) Guided by Genomics
Introduction: NET outcomes differ by primary site. Yet pNETs are classified using a generic GI grading system.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr Kate Parker
#79 PTOV-1 overexpression in neuroendocrine tumors: a new molecular marker
Introduction: PTOV-1 (Prostate Tumor Overexpressed-1) is a novel protein encoded by 12-exon gene localized in chromosome 19q.13.3. Recently identified as an androgen-induced gene, it is involved in prostate cell proliferation and in prostate human cancer. PTOV-1 expression has been demonstrated in neuroendocrine cells of normal prostate tissue. Preliminary data indicate that PTOV-1 can be related to flotilin, integrins and other cellular factors involved in cancer progression.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: MD INES DE TORRES
#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
#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
#2234 High Rate of Copy-Number Alterations in Gastrointestinal and Pancreatic Neuroendocrine Tumors with Unidentified Driver Mutations
Introduction: The driving genetic alteration leading to neuroendocrine tumor (NET) development has been reported for primary tumors of pancreatic origin, but not for metastases. Moreover, even for primary tumor a significant “dark matter” remains to be explored.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr Amit Tirosh
#65 Deletions of 11q21-q25 are associated with atypical lung carcinoids and a poor clinical outcome
Introduction: Lung carcinoids comprise a group of smoking-unrelated neuroendocrine tumors, which can be classified in typical (TC) and atypical (AC) carcinoids. Classification is complex and its accuracy to predict disease outcome is variable. In a previous array comparative genomic hybridization (arrayCGH) study, we showed that the average number of chromosomal alterations (≥ 1Mb) was significantly higher in ACs than in TCs (512 v. 226 per tumor) and that the most common region of chromosome loss was 11q21-q25 (Neuroendocrinology 2009;90:136-137).
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: MSc Dorian RA Swarts
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