Abstract Library

#4657 Should we use the growth modulation index (GMI) in response assessment in G2 neuroendocrine tumours (NETs)?

Introduction: Grade 2 (G2) neuroendocrine tumours (NETs) exhibit diverse behaviours ranging from indolent to aggressive malignancies. Growth Modulation Index (GMI) is the ratio between time to progression (TTP) with a line of therapy (TTPn) and that of the previous line of therapy (TTPn-1). A GMI value equal to or greater than 1,33 has been suggested as an indicator of clinical effectiveness beyond traditional metrics.

Conference:

Presenting Author: Bertuzzi A

Authors: Bertuzzi A, Ferrillo G, Laffi A, Evangelista L, Jandric J,

Keywords: growth modulation index (GMI), G2 gastroenteropancreatic neuroendocrine tumour (GEP-NET), tumour response assessment,

#4537 The usefulness of circulating fibrosis markers in detection of carcinoid heart disease

Introduction: Carcinoid heart disease (CHD) is a potential serious fibrotic complication in patients with neuroendocrine neoplasms (NENs), affecting the heart valves. Early detection is crucial to avoid severe manifestations. NT-proBNP is suggested as an initial screening tool in detection of CHD; however, the value of NT-proBNP as a screening tool is questionable.

Conference:

Presenting Author: Lau T

Authors: Lau T, Angeli E, Oksjoki R, Rasmussen V, Genovese F,

Keywords: carcinoid heart disease, biomarker, fibrosis marker,

#4373 Focal adhesion kinase drives proliferation and invasion in gastrointestinal neuroendocrine tumours via modulation of transformative cell signalling and gene expression

Introduction: Focal Adhesion Kinase (FAK) is a non-receptor protein kinase that localises in both the cytoplasm and nucleus, influencing cell function through its enzymatic and scaffold activities. Through its scaffold function, FAK modulates gene expression epigenetically. Gastrointestinal neuroendocrine tumours (GI-NETs) exhibit a relatively low mutation rate, supporting the hypothesis that these malignancies may be driven epigenetically. Recently, PROTAC (PROteolysis TArgeting Chimeras) technology has enabled selective inhibition and degradation of FAK, providing a novel approach to explore its role in GI-NETs.

Conference:

Presenting Author: Gagliano T

Authors: Toffoli L, Ditsiou A, Moschioni E, Hamm V, Gagliano T,

Keywords: FAK, GI-NET, Cell Signalling, Epigenetics,

#4311 Characterisation of patients diagnosed with metastatic head and neck paraganglioma treated at an oncology referral institution in Colombia

Introduction: Head and neck paragangliomas (HNPGL) are rare tumours. Multiple risk factors associated with the risk of metastasis have been described, although much of the available information corresponds to the group of Pheochromocytoma and Paragangliomas, not necessarily extrapolatable to metastatic HNPGLs.

Conference:

Presenting Author: Fierro L

Authors: González A, Puerto J, Fierro L, Zarama A, Caicedo L,

Keywords: Paraganglioma, head and neck, metastasis, survival,

#4240 Plasma extracellular vesicles number and size distinguish patients with neuroendocrine neoplasms

Introduction: Neuroendocrine Neoplasms (NENs) are heterogeneous neoplasms, whose metastatic potential is challenging to predict. Extracellular vesicles (EVs) have been described as mediators of communication between the tumor cells and their microenvironment, driving the formation of metastatic niches.

Conference:

Presenting Author: Angelioudaki I

Authors: Angelioudaki I, Pantazatou V, Tzingounis A, Kataki A, Memos N,

Keywords: Extracellular vesicles, plasma, Gastroenteropancreatic NEN,