Abstract Library

#2965 Molecular Signature of Rectal Neuroendocrine Neoplasia

Introduction: Rectal neuroendocrine tumors are rare neuroendocrine neoplasias (NEN). Little is known about prevalence and type of somatostatin receptor subtypes (sstr) expression and somatic mutations in relation to long-term clinical outcome.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Unger N, Theurer S, Herold T, Weber F, Dralle H,

Keywords: Somatic Mutations, NGS, Somatostatin receptor subtypes, Intestinal NEN,

#2902 DNA Methylation Analysis of the PDX1 Gene Can Be Used for PNET Subtyping and Has a Possible Prognostic Value

Introduction: Estimating prognosis of pancreatic neuroendocrine tumor (PNET) patients remains challenging. Mutation status of DAXX/ATRX/MEN1, histone modification patterns and immunohistochemistry for relevant transcription factors, including PDX1, were recently used to perform subtyping and distinguished two main types, A and B. These subtypes are linked to cell-of-origin and associated with clinical outcome.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Boons G, Vandamme T, Ibrahim J, Schepers A, Roeyen G,

Keywords: Pancreatic Neuroendocrine Tumor, DNA Methylation, Prognostic Biomarker,

#2022 CXCR4 Expression on Circulating Tumor Cells (CTCs) and Their Association with Bone Metastases in Patients with Neuroendocrine Tumors (NET)

Introduction: Bone metastases have been described in up to 32% of NET patients and are associated with a worse clinical outcome. Overexpression of CXCR4 in primary tumors appears predictive of skeletal involvement.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author:

Authors: Rizzo F, Vesely C, Childs A, Mandair D, Khan M,

Keywords: CTC, CXCR4, bone,

#1285 Gastrointestinal Neuroendocrine Tumors of Unknown Primary Site: Report from a Series at a Single Institute

Introduction: Neuroendocrine neoplasms of unknown primary (NENs-UP) account for 10-13% of all NENs and show different biologic behavior, histologic appearance and clinical outcome.

Conference: 13th Annual ENETSConcerence (2016)

Presenting Author: Zilli A

Authors: Massironi S, Fanetti I, Cavalcoli F, Zilli A, Conte D,

Keywords: Neuroendocrine tumors, unknown primary,

#1109 Expression and Role of the CXCR4/CXCL12/CXCR7 Axis and Crosstalk with the mTOR Pathway in Neuroendocrine Tumors (NETs)

Introduction: Chemokine receptor CXCR4 has been shown to signal on mTOR pathway in gastric and renal cancer. CXCR4 interacts with the chemokine CXCL12 to exert proliferative and chemotactic effects.

Conference: 12th Annual ENETSConcerence (2015)

Presenting Author: Sciammarella C

Authors: Sciammarella C, Circelli L, Guadagno E, Tafuto S, Del Basso De Caro M,

Keywords: chemokine, mtor, nets, clinical outcome.,