Abstract Library

#4646 Dysregulated miRNA in patients with GEP-NEN and potential role as circulating biomarker

Introduction: Neuroendocrine neoplasms (NENs) are a class of rare and molecularly extremely heterogeneous tumours. NENs arise predominantly in the gastrointestinal (GEP) and pulmonary tracts but can also involve thyroid and breast. NENs often present with non-specific symptoms and lack early specific biomarkers, leading to frequent metastatic diagnoses and primary site challenges.

Conference:

Presenting Author:

Authors: Di Mauro A, Clemente O, Cannella L, Della Vittoria G, Neri G,

Keywords: neuroendocrine tumour, miRNome profiling, biomarker, gep-net, molecular biology,

#4557 miR-1290 and miR-320c regulate cell proliferation and predict patient prognosis in neuroendocrine carcinomas

Introduction: The biology of neuroendocrine carcinomas (NECs) remains largely unknown, limiting the use of biomarkers for patient stratification and therapy response prediction in clinical practice.

Conference:

Presenting Author: Liverani C

Authors: Liverani C, Sgolacchia F, Bongiovanni A, Calabrese C, Vanni S,

Keywords: biomarker, miRNAs, neuroendocrine carcinoma,

#3780 Evaluation of tumor tissue miRNAs for assessing the grade of pancreatic neuroendocrine tumors from FFPE samples

Introduction: Our research aims were to determine whether the human tissue microRNAs miR-21, miR-96, miR-130b and miR-210 are of use in the differential diagnosis of grade 1 and grade 2 pancreatic neuroendocrine tumors (PNET).

Conference:

Presenting Author: Nyirő G

Authors: Nyirő G, Szeredás B, Moloney C, Turai P, Vékony B,

Keywords: PNET, FFPE, RT-QPCR, miR-21, miR-96, miR-130b, miR-210, miRNA, Grade 1, Grade 2,

#3513 Comprehensive molecular analysis of prognostic groups in Neuroendocrine Neoplasms (NENs) identifies key genes and potential regulatory mechanisms

Introduction: MiRNAs are key regulators of multiple molecular processes, including tumorigenesis and cancer progression. However, very few studies have assessed their role in NENs. In a previous study, we identified a miRNA signature that defined 3 prognostic groups in 86 patients with lung and gastroenteropancreatic (GEP) NENs. Here, we explore up- and downstream mechanisms underlying this miRNA signature.

Conference:

Presenting Author: Lens-Pardo A

Authors: Lens-Pardo A, Espinosa-Olarte P, Carretero C, Molina-Pinelo S, Robles C,

Keywords: miRNAs, Signature, omics, Molecular, Neuroendocrine Neoplasia, Lung, Gastroenteropancreatic,

#3275 MicroRNA prognostic signature in neuroendocrine neoplasias (NENs) of lung and GEP origin: In silico analysis of target genes and pathways

Introduction: Molecular knowledge of NENs has increased in the last years. Nevertheless, the lack of in vivo models makes it difficult to guide functional experiments to better understand the biological implications of described molecular alterations. In this context, and as miRNAs contribute to regulate gene expression, we performed an in silico analysis to explore target genes and involved pathways regulated by an 8-miRNA prognostic signature that we recently developed in NENs, that stratified patients in 3 prognostic groups (Espinosa-Olarte P et al, ESMO 2020).

Conference: 18th Annual ENETS Concerence (2021)

Presenting Author:

Authors: Espinosa Olarte P, Soldevilla B, Carretero-Puche C, Molina-Pinelo S, Robles C,

Keywords: neuroendocrine neoplasia, miRNAs, genes, pathways, prognosis,