Abstract Library

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#2279 Expression of FOXM1 in G3 Neuroendocrine Tumors (NET G3) and G3 Neuroendocrine Carcinomas (NEC G3) of the Pancreas and the Intestine

Introduction: G3 gastroenteropancreatic neuroendocrine tumors (G3 NET) and carcinomas (G3 NEC) differ considerably concerning their biological behavior and patients outcome. Whereas the WHO2017 classification for pancreatic NETs proposes a distinction of both groups using the Ki-67 proliferation marker (Klöppel et al. Reviews and Reports 2017), a useful marker for the subclassification of G3 intestinal NETs have not been recommended until now.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Briest F

Authors: Briest F, Konukiewitz B, Anlauf M, Klöppel G, Grabowski P,

Keywords: gastroenteropancreatic neuroendocrine tumors, GEP-NET, NET G3, NEC G3, Tumor marker, FOXM1, Ki-67, differentiation,

#1551 Establishment and Characterization of Three GEP-NEC Cell Lines for In Vitro and In Vivo Studies

Introduction: To date chemotherapeutic concepts applying cisplatin/etoposide for the treatment of highly aggressive GEP-NEC do not provide convincing results. Thus, there is an urgent need for NEC cell line models that provide a reliable experimental system in identifying novel therapeutic targets.

Conference: 13th Annual ENETSConcerence (2016)

Presenting Author: Krieg A

Authors: Krieg A, Riemer J, Dizdar L, Mersch S, Anlauf M,

Keywords: GEP-NEC,

#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 ENETSConcerence (2015)

Presenting Author:

Authors: Hoffmeister M, Sperveslage J, Anlauf M, Petersen K, Gress T,

Keywords: NET, gene amplification, mTOR pathway,

#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 ENETSConcerence (2013)

Presenting Author:

Authors: Henopp T, Brix J, Sperveslage J, Anlauf M, Petersen K,

Keywords: chr18,

#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 ENETSConcerence (2013)

Presenting Author: Sperveslage J

Authors: Hoffmeister M, Sperveslage J, Henopp T, Anlauf M, Petersen K,

Keywords: NET, mir-expression,