Abstract Library

#2834 Tumor-Promoting Effects of the Transcriptional Regulator CUX1 in PanNET

Introduction: Previously, we identified CUX1 as mediator of metastatic behaviour and poor differentiation in human insulinomas. CUX1 mediated tumor-promoting functions via enhancing proliferation, resistance to apoptosis and angiogenesis in-vitro and in-vivo.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Weißbach J

Authors: Weißbach J, Schmitz R, Haybäck J, Perren A, Blank A,

Keywords: CUX1, RIP1Tag2, DAPK1, Apoptosis, Tumor Progression,

#2810 Development of a Personalized Human Immunocompetent Ex-Vivo Model of Neuroendocrine Liver Metastasis Using Precision Cut Tissue Slice Technology

Introduction: Liver metastasis (LM) are very frequent (65-95%) and represent a crucial prognostic factor in patients with gastroenteropancreatic neuroendocrine neoplasms (GEP NENs). The paucity of relevant experimental models has limited the understanding of the pathophysiology of NENs and the development of efficient therapeutic strategies

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Doornebal E

Authors: Doornebal E, Harris N, Miquel R, Zen Y, Pizanias M,

Keywords: Liver, neuroendocrine liver metastasis, ex-vivo model, personalized medicine, immunocompetent, organotypic tissue slices,

#2800 Thymosin Beta 4 Is an Autocrine Mitogen for Neuroendocrine Tumour Cells

Introduction: The most commonly used NET marker chromogranin A, has a sensitivity between 60-90% and a specificity of less than 50%, hence better NET markers are needed. Previous secretome analysis using BON1, NCI-H727 and SHP-77 cell lines has led to the discovery of various candidate NET markers. One such marker is Thymosin Beta 4 (TB4). TB4 is a small 43 amino acid intracellular peptide first isolated from bovine thymus tissue.TB4 or its oxidised form TB4SO are thought to play a role in various aspects of cancer biology including tumour invasion, metastasis and apoptosis.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Balasundaram P, Beaumont N, Liang S, Cuenco J, Lu X,

Keywords: neuroendocrine tumour, biomarkers, signalling,

#2682 PAK4-NAMPT Dual Inhibition as a Novel Strategy for Therapy Resistant Pancreatic Neuroendocrine Tumors

Introduction: Pancreatic neuroendocrine tumors (PNET) remain an unmet clinical need. In this study, we show that targeting both nicotinamide phosphoribosyltransferase (NAMPT) and p21-activated kinase 4 (PAK4) could become a synthetic lethal strategy for PNET.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Mpilla G

Authors: Mpilla G, Aboukameel A, Muqbil I, Kim S, Philip P,

Keywords: pak4, nampt, mtor, pancreatic neuroendocrine tumors, kpt-9274,

#2289 Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL) Receptor Expression in Patients with Neuroendocrine Neoplasia

Introduction: Targeting the death receptor pathway of apoptosis represents a promising approach for the development of novel cancer therapeutics. TNF-related TRAIL induces apoptosis upon binding to TRAIL receptors 1 and 2 (TRAIL-R1/DR4 and TRAIL-R2/DR5). TRAIL-R3 (DcR1) and TRAIL-R4 (DcR2) have been reported to block TRAIL-mediated apoptosis upon overexpression. Specially agonists for the apoptosis-inducing TRAIL-R1 and TRAIL-R2 are currently tested in clinical trials.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author:

Authors: Sättele R, Jann H, Fischer C, Pape U, Schefold J,

Keywords: TRAIL, apoptosis, NENs,