Abstract library

36 results for "microvessel density".
#2693 The Distinctive Character of Micro-Vasculature and Immune Cell Infiltration in Cystic Pancreatic Neuroendocrine Tumors
Introduction: Hypervascularity is main character of pancreatic neuroendocrine tumors (PanNETs), cystic PanNET (CPanNET) are unique type of PanNETs for which the microenvironment remains unknown.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: Heli Gao
Authors: Gao H
#180 Microvessel Density and Prognosis of Gastroenteropancreatic Neuroendocrine Tumors (GEP-NETS)
Introduction: The role of anti-angiogenic agents in GEP-NETS remains to be established. CD105 (Endoglin) identifies the TGF-ß1 receptor which is expressed on endothelial cells involved in tumor angiogenesis.
Conference: 8th Annual ENETS Conference (2011)
Category: Basic
Presenting Author: Dr. Carlos A. S. Soares
#756 Evaluation of VEGF, VEGFR 1-2-3 and Endocan/ESM-1 Expression in Gastroenteropancreatic Neuroendocrine Tumors and Correlation with Ki-67 Labeling and Prognosis
Introduction: Angiogenesis is recognized to play a critical role in progressive tumor growth and spreading and its inhibition is a valuable approach to cancer treatment. Markers of angiogenesis include assessment of microvessel density on tissue sections (often evaluated with antibodies against pan-endothelial antigens, such as CD34) and expression of vascular endothelial growth factor (VEGF) and its receptors (VEGFR 1-2-3). Endocan, also called endothelial cell specific molecule-1 (ESM-1), has been shown to be expressed by endothelial tumor cells and especially by tip cells during angiogenesis. Endocan is highly up-regulated by pro-angiogenic molecules, such as VEGF. Recently, Endocan has been identified to be one of the molecules involved in the switch from dormant to fast-growing tumors. Among endocrine tumors, Endocan expression has been evaluated only in pituitary adenomas: a positive association between endothelial Endocan expression and recurrence risk, tumor size, tumoral invasion and average mitosis count has been demonstrated. In contrast, there was no association between endothelial Endocan expression and the Ki-67 labeling index
Conference: 10th Annual ENETS Conference 2013 (2013)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Laura De Marinis
Authors: Lugli F, Iacovazzo D, Fusco A, Lanza P, ...
#1850 Influence of VEGF Splicing on Microvessel Density and Architecture in Pancreatic Neuroendocrine Tumours
Introduction: Hypoxia in human tumours is associated with a poor prognosis and is characterized by the stabilization of HIF1α, upregulation of VEGF, and a high microvessel density (MVD). Interestingly, although pancreatic neuroendocrine tumours (pNETS) showing hypoxia signalling also have a poor prognosis, they paradoxically display a low MVD. We hypothesized that this paradoxon might be explained by alternative splicing of VEGF.
Conference: 14th Annual ENETS conference 2017 (2017)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: MD Anja Maria Schmitt
Authors: Marinoni I, Naim S, Centeno I, Perren A, ...
Keywords: pNET, VEGF
#2261 Mechanisms of Main Pancreatic Duct Dilatation in Pancreatic Neuroendocrine Tumors (PanNETs): Radiopathologic Correlation
Introduction: Main pancreatic duct (MPD) dilatation, a frequent observation in cases with adenocarcinoma can also be observed in patients with PanNET.
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Imaging and Interventions (radiology, endoscopy)
Presenting Author: Dr Jerome Cros
#2993 Proposal of New Imaging Criteria for Evaluating the Response of Liver Metastases to Systemic Treatments in Digestive Neuroendocrine Tumors (NET) as an Alternative to RECIST 1.1
Introduction: RECIST 1.1 criteria have been challenged for the evaluation of treatment response in NET.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Imaging and Interventions (radiology, endoscopy)
Presenting Author: Dr Louis de Mestier
#2717 64Cu-DOTATATE PET/CT Predicts Progression-Free Survival in Patients with Neuroendocrine Neoplasms
Introduction: The degree of overexpression of somatostatin receptors in patients with neuroendocrine neoplasms (NEN) may reflect tumor differentiation and thus be associated with prognosis. Non-invasive quantification of receptor density is possible by somatostatin receptor imaging (SRI) using positron emission tomography (PET).
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: MD Esben Andreas Carlsen
#2894 Single Institution Experience with Peptide Receptor Radionuclide Therapy (PRRT) in Neuroendocrine Tumors (NET)
Introduction: Neuroendocrine tumors (NETs) are a rare and heterogenous group of tumors with rising incidence. Peptide receptor radionuclide therapy (PRRT) with radiolabeled somatostatin analogue is an encouraging systemic treatment modality with minimum side effects.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Dr. Heying Duan
Authors: Duan H, Ninatti G, Girod B, Ferri V, ...
Keywords: NET, PRRT, ORR, PFS
#3011 Added Prognostic Value of Molecular Imaging Biomarkers over Proliferation Index in Typical Lung Carcinoid: An FDG PET and SSTR Imaging Study
Introduction: Typical lung carcinoids(TCs)are rare tumors with good,although heterogeneous,prognosis.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: MD Vittorio Briganti
#26 Molecular imaging of gastroenteropancreatic neuroendocrine tumours with Ga-68 DOTANOC PET/CT and correlation with an immunhistochemical quantification of somatostatin receptors using novel monoclonal and polyclonal antibodies
Introduction: Receptor PET/CT with somatostatin analogues marked with Gallium-68 (SMS-R-PET/CT) is currently the golden standard in diagnosing gastroenteropancreatic neuroendocrine tumors (GEP-NET), which are known for an overexpression of somatostatin receptors (SSTRs).
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Daniel Kaemmerer