Abstract Library

#3062 The Splicing Factor CELF4 Is Dysregulated in Neuroendocrine Tumors, Where It Can Enhance Aggressiveness Features

Introduction: There is increasing evidence that alterations in alternative splicing are linked to key tumor features in different cancers. Besides mutations, dysregulation of the splicing machinery would represent the main underlying cause for these alterations. Indeed, splicing dysregulation is emerging as a novel, transversal cancer hallmark, due to its association with multiple dysfunctions in tumor cells.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Alors-Pérez E

Authors: Alors-Pérez E, Pedraza-Arévalo S, Vázquez-Borrego M, Blázquez-Encinas R, Herrera-Martínez A,

Keywords: PanNET, CELF4, splicing, aggressiveness, pituitary tumors,

#3053 The Splicing Machinery Is Dysregulated in Low Grade Pulmonary Neuroendocrine Tumors

Introduction: Alternative splicing dysregulation is increasingly regarded as a novel cancer hallmark influencing all key tumor features. We have shown that neuroendocrine tumors (NETs) overexpress aberrantly spliced variants of neuropeptides and receptors that increase tumor malignancy. More recently, we discovered that the splicing machinery is dysregulated in pituitary and pancreatic NETs. To date, the status of this machinery in low grade pulmonary NETs is largely unknown.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Blázquez-Encinas R

Authors: Blázquez-Encinas R, Caro M, Pedraza-Arévalo S, Alors-Pérez E, Herrera-Martínez A,

Keywords: low grade pulmonary NETs, splicing, splicing machinery, malignancy,

#2271 Effects of Multi-Receptor Targeting Drugs in Neuroendocrine Tumors Using 3D Cell Culture

Introduction: Symptom control in functioning neuroendocrine tumors(NETs) may be difficult in some cases, thus, new therapeutic options, including multi-receptor targeting drugs are required.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Herrera-Martínez A

Authors: Herrera-Martínez A, Van Dungen R, Van Koetsveld P, Dogan-Oruc F, Culler M,

Keywords: NETs, somatostatin receptors, dopamine receptors, multi-receptor targeting drugs, hormone secretion,

#2233 Potential Effects of Ketoconazole on ACTH-Producing and Non-ACTH-Producing Neuroendocrine Tumors

Introduction: Prolonged biochemical remission after treatment with steroidogenesis inhibitors has been described in patients with Cushing’s syndrome due to ectopic adrenocorticotropin hormone (ACTH) production. Some studies have suggested antiproliferative and apoptotic effect of ketoconazole in human cancer cells.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Herrera-Martínez A

Authors: Herrera-Martínez A, Feelders R, Castaño J, Van Dungen R, Dogan-Oruc F,

Keywords: ACTH- and non-ACTH producing NETs, ketoconazole, somatostatin analogs, apoptosis, cytotoxicity,

#2116 Ghrelin O-Acyltransferase (GOAT) Enzyme and Ghrelin Receptor GHSR1a as Putative Prognosis Markers and Therapeutic Targets in Gastroenteropancreatic Neuroendocrine Tumors

Introduction: Specific components of ghrelin-system are associated with tumor development/ progression. We have previously described the presence of this system in neuroendocrine tumors (NETs) but clinical-molecular correlations have not been elucidated yet.

Conference: 15th Annual ENETSConcerence (2018)

Presenting Author: Herrera-Martinez A

Authors: Herrera-Martínez A, Gahete M, Sánchez-Sánchez R, Ortega Salas R, Serrano R,

Keywords: GEP-NET, ghrelin system, GOAT, GHSR1a, prognosis, invasion,