Abstract Library

#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 ENETSConcerence (2018)

Presenting Author: Briest F

Authors: Briest F, Hummel M, Grabowski P, Arsenic R,

Keywords: rectum neuroendocrine tumors, NET, MAP kinase, gene expression analysis, Wnt signaling,

#2216 Predicting Response to PRRT: Development and Validation of a Blood-Based Predictive Biomarker

Introduction: We have developed a blood-based tool (gene expression analysis and tumor grade) for predicting PRRT efficacy.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Bodei L

Authors: Bodei L, Kidd M, van der Zwan W, Singh A, Severi S,

Keywords: Biomarker, carcinoid, PRRT, prediction, therapy, efficacy, stratification,

#1939 Antiproliferative Effects of Lanreotide in Neuroendocrine Tumors

Introduction: Neuroendocrine tumors of the lung (BP-NETs, typical (AC) and atypical Carcinoids (ATC)) are rare tumors with heterogeneous behavior and molecular characteristics. For the intermediate proliferating BP-NETs treatment options are limited and unsatisfactory. Somatostatin analogues have not only anti-secretory effects, but also display antiproliferative features, as shown by PROMID and CLARINET trial. Nevertheless, their value in BP-NET is undefined so far.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Grabowski P

Authors: Lelek S, Sedding D, Benecke J, Siegmund B, Schrader J,

Keywords: Bronchopulmonary neuroendocrine tumors (BP-NET), somatostatin analogues, Lanreotide, signaling,

#1879 A Hybrid Clinical Molecular Nomogram Accurately Predicts Survival in PRRT Treated GEP-NETs

Introduction: Clinical assessment has limited prognostic ability. Mathematical tools –nomograms- that incorporate multiple parameters are more effective. Novel transcriptomic data has added value in defining NET biology in tissue and blood. A blood multigene expression analysis test is effective as a molecular prognostic marker for PFS.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Kidd M

Authors: Kidd M, Bodei L, Severi S, Drozdov I, Nicolini S,

Keywords: PRRT, nomogram, NETest, biomarker, OS, PFS, prediction,

#1404 The Proteasome Inhibitor Bortezomib Is a Highly Effective Treatment Option for Gastroenteropancreatic Neuroendocrine Neoplasms and Sensitizes to DNA Damaging Therapy In Vitro

Introduction: Gastroenteropancreatic neuroendocrine neoplasms are fairly rare tumors with very heterogeneous behavior and molecular characteristics. Their generally slow proliferation render them virtually resistant to many DNA damaging therapeutic approaches. Bortezomib has been shown to be effective in GEP-NENs in vitro but has been withdrawn from clinical assessment due to a small phase II study on bortezomib monotherapy in 2004.

Conference: 13th Annual ENETSConcerence (2016)

Presenting Author: Briest F

Authors: Briest F, Christen F, Worpenberg L, Welzel M, Freitag H,

Keywords: GEP-NEN, targeted therapy, DNA repair, chemotherapy,