Abstract Library

#3320 TGF-β increase caspase activation and migration in typical bronchial carcinoids

Introduction: Typical bronchial carcinoids (TBC) are well-differentiated neuroendocrine neoplasms (NEN) whose management can still be very challenging due to reduced sensitivity to therapy. Previous studies have reported TGF-β’s ability to activate mTOR pathway and induce epithelial to mesenchymal transition (EMT). Moreover, preliminary results show an overexpression of TGF-β signalling and caspase activation in TBC.

Conference: 18th Annual ENETS Concerence (2021)

Presenting Author: Gagliardi I

Authors: Borges de Souza P, Gagliardi I, Martelli M, Zatelli M,

Keywords: bronchial carcinoid, TGF-β signalling, mTOR, EMT,

#2037 Stromal Immune Contexture Predicts Disease-Free Survival in Gastro-Entero-Pancreatic Neuroendocrine Neoplasms (GEP-NENs)

Introduction: Stromal Immune Contexture (SIC) helps predict prognosis in solid Tumors (T) but has been poorly investigated in gastro-entero-pancreatic neuroendocrine neoplasms (GEP-NENs). We tested whether GEP-NENs profiling for adaptive immunity-related SIC markers, as well as inflammatory (COX2),EMT [Beta-catenin (B-cat)] and oncogenic pathway signaling (pS6) markers,could improve Ki67 and/or MO-based prediction of OS and DFS.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Milione M

Authors: Milione M, Miceli R, Pellegrinelli A, Spaggiari P, Tagliabue G,

Keywords: Neuroendocrine, Ki-67, Morphology, Immune contexture, PDL1, Beta-Catenin,

#1847 CXCR4 Inhibition by Ulocuplumab Prevents EMT of pNET Cells in Vitro

Introduction: Neuroendocrine tumors (NETs) overexpress CXCR4. We have previously shown that stimulation of CXCR4 by its ligand SDF-1 promotes the epithelial-mesenchymal transition (EMT) and increases distant tumor spread. Ulocuplumab (Ulo) is a fully human IgG4 mAb designed to inhibit the binding of CXCR4 to SDF-1.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Quaresmini D

Authors: Quaresmini D, Cives M, Pellè E, Ungaro A, Felici C,

Keywords: pNET, CXCR4, EMT, Ulocuplumab,

#1520 Osteotropism of NETs: Role of the SDF1/CXCR4 Axis in Regulating EMT

Introduction: NETs metastasize to the bone in up to 20% of patients. The SDF1/CXCR4 axis is a key determinant of osteotropism, and we showed that NETs overexpressing CXCR4 are more likely to develop bone metastases.

Conference: 13th Annual ENETSConcerence (2016)

Presenting Author: Cives M

Authors: Simone V, Quaresmini D, D'Oronzo S, Rizzo F, Felici C,

Keywords: emt, cxcr4,

#930 Distinct Expression of Splicing Variants of the Human MEN1 (Multiple Endocrine Neoplasia Type 1) Gene in Various Pituitary Adenomas

Introduction: MEN1 is an autosomal-dominant tumor syndrome characterized by the occurrence of tumors in multiple endocrine tissues, including parathyroid, enteropancreatic neuroendocrine and anterior pituitary. The MEN1 gene consists of 10 exons transcribed into a 610 a.a. protein. It was reported that heterogeneity of human MEN1 gene transcripts related to variation in their 5’ UTR. Six distinct exsons1 (e1A-e1F) were isolated using RNA from thymus, pancreas and kidney.

Conference: 11th Annual ENETSConcerence (2014)

Presenting Author: Ozawa A

Authors: Ozawa A, Watanabe T, Tosaka M, Yoshimoto Y, Horiguchi K,

Keywords: MEN1, pituitary,