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,

#2983 Differential TGF-β Signalling in Typical and Atypical Bronchial Carcinoids

Introduction: Typical and atypical bronchial carcinoids (TBC and ABC) are well-differentiated neuroendocrine neoplasms (NEN). Metastatic BC having low to moderate mitotic count may still be treated with somatostatin analogues and mTOR inhibitors; however, TBC and ABC have been reported to respond very differently to therapy and an effective treatment algorithm is still lacking. TGF-β is known for its ability to activate mTOR pathway and induce epithelial mesenchymal transition, affecting cell pathophysiological capabilities such as proliferation, migration and tissue invasiveness.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Borges de Souza P

Authors: Borges de Souza P, Tagliatti V, Capobianco S, Ambrosio M, Chinnici S,

Keywords: Neuroendocrine neoplasms, bronchial carcinoids, TGF-β,

#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,

#2091 Differential Signalling Pathways Drive Therapeutic Resistance in Neuroendocrine Tumors

Introduction: Most of the current therapeutic strategies used for neuroendocrine tumors (NETs) are insufficient due to poor knowledge of these tumours. Despite showing differentiated features, NETs often exhibit therapeutic resistance to common treatments similarly to other cancers. Although signalling abnormalities have been reported, molecular mechanisms responsible for this resistance phenomenon are yet to be understood.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author:

Authors: Romano D, Gerard C, Poizat F, Niccoli P, Barlier A,

Keywords: neuroendocrine tumors, drug resistance, proteomics, kinases, apoptosis,

#1891 GSK3: A Novel Therapeutic Target in NETs?

Introduction: GSK3 is a serine/threonine-kinase that plays a critical role in cancer. In neuroendocrine tumours (NETs) GSK3 is regularly overactivated.

Conference: 14th Annual ENETSConcerence (2017)

Presenting Author: Nölting S

Authors: Weis C, Aristizabal Prada E, Maurer J, Spöttl G, Grossman A,

Keywords: GSK3-inhibition, neuroendocrine tumors, combination treatment,