Validation of Lysyl Oxidase-Like 2 (LOXL2) as Prognostic Marker for Gastro-Entero-Pancreatic Neuroendocrine Tumours (GEP-NET) Using an Independent Cohort. Abstract #1316

Introduction: LOXL2 is a key protein to epithelial to mesenchymal transition. We showed LOXL2 has a role as a prognostic marker in 115 GEP-NET cases (training cohort (TC)).
Aim(s): Validation of LOXL2 expression by immunohistochemistry (IHC) in an independent cohort.
Materials and methods: Formalin-fixed paraffin-embedded samples (FFPE) of consecutive GEP-NET patients from 1999 to 2010 who underwent surgery in a different Spanish institution constituted the validation cohort (VC). Tissue microarrays were constructed from 2 non-necrotic areas of tumour foci. LOXL2 expression was studied by IHC and classified as presence (P) vs absence (A). Log rank test and Cox regression were used to study Disease Free Survival (DFS) and Overall Survival (OS). Univariate and multivariable analysis (MVA) were performed.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Biomarkers
Presenting Author: Dr. Jorge Barriuso
Keywords: LOXL2

To read results and conclusion, please login ...

Further abstracts you may be interested in

#2883 Comparison of Somatostatin Analogues in Metastatic Gastroenteropancreatic Neuroendocrine Tumors from a Bayesian Perspective: The GETNE-TRASGU Study
Introduction: Somatostatin analogues (SSA), octreotide LAR (Oct) and lanreotide autogel (Lan), significantly prolong progression-free survival (PFS) in patients with well-differentiated gastroenteropancreatic neuroendocrine tumors (GEP-NET). However, comparative data are not available and randomized trials comparing both SSAs are unlikely to be conducted.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - Chemotherapy Somatostatin analogues, Interferon
Presenting Author: Alberto Carmona-Bayonas
#966 Evaluation of Lysyl Oxidase-Like-2 (LOXL2) Expression by Immunohistochemistry (IHC) in Gastroenteropancreatic Neuroendocrine Tumors (GEP-NET): A Retrospective Analysis and Comparison with PTEN
Introduction: A better understanding of the relationship between the stroma and the cancer cells of this group of malignancies remains a challenge. LOXL2 is an enzyme that contributes to the synthesis and stabilization of the cellular matrix and plays a role in angiogenesis.
Conference: 11th Annual ENETS Conference 2014 (2014)
Category: Biomarkers
Presenting Author: Dr Jorge Barriuso
Keywords: LOXL2, GEP-NET
#2888 Progression-Free Survival as a Surrogate Endpoint in Gastroenteropancreatic Neuroendocrine Tumors Treated with Somatostatin Analogues
Introduction: Progression-free survival (PFS) has been used as surrogate endpoint in phase III trials with somatostatin analogues for gastroentero-pancreatic neuroendocrine tumors (GEP-NET). However, this endpoint has not been validated in this scenario.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - others, not specified
Presenting Author: Alberto Carmona-Bayonas
#2927 Systemic Chemotherapy for Inoperable Goblet Cell Adenocarcinomas (GCAs) and the Role of Anti-EGFR Antibodies
Introduction: Appendiceal GCAs (previously Goblet Cell Carcinoids) have variable behaviour. Systemic chemotherapy (Chemo) is often extrapolated from colon cancer. KRAS mutations (KRAS-mut) are rare and more often present in Tang-C/high grade. The role of anti-EGFR antibodies (MoAb) is unknown.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - Chemotherapy Somatostatin analogues, Interferon
Presenting Author: MD, PhD Jorge Barriuso
#3003 The Proinflammatory Molecule, VAP-1, Is Enriched in the Stroma of Midgut NETs and Plaques of Carcinoid Heart Disease Valves
Introduction: Vascular adhesion protein-1 (VAP-1) is a novel driver of tissue inflammation and fibrosis.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr Chris Weston
Authors: Shah T, Sagar V, Neil D, Liu B, ...