Abstract library

31 results for "microvessel density".
#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
#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)
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
#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)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Laura De Marinis
Authors: Lugli F, Iacovazzo D, Fusco A, Lanza P, ...
#1998 Vitamin D, Bone Mineral Density and Fracture Risk Assessment in Patients with Neuroendocrine Tumors
Introduction: Some papers have recently described an association between neuroendrocrine tumors (NET) and both vitamin D deficiency (VDD) and low bone mineral density (BMD). The ten-year risk of osteoporotic fractures can be calculated with the FRAX algorithm.
Conference: 15th Annual ENETS conference (2018)
Category: Epidemiology/Natural history/Prognosis- Registries, nationwide and regional surveys
Presenting Author: Dr. Franco Grimaldi
#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)
Category: Imaging and Interventions (radiology, endoscopy)
Presenting Author: Dr Jerome Cros
#256 Evaluation of the Association Between Serotonin and Bone Mineral Density in Patients with Neuroendocrine Tumors
Introduction: Bone mineral density (BMD) and fractures are influenced by diet, activity, drugs and hormones. Recent studies highlight an inverse relationship between serotonin and BMD.
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: Dr Maralyn R Druce
#1034 Identification of Novel and Pathological Feature of Angiostatic Microvasculature in Liver Metastatic Pancreatic Neuroendocrine Tumors and Its Clinical Implication
Introduction: Microvasculature of liver metastatic pancreatic neuroendrocrine tumors (LM-PNETs) are unknown.
Conference: 12th Annual ENETS Conference (2015)
Category: ...none of the below
Presenting Author: Xu Han
Authors: Han X, Hexige S, Lou W, ...
#975 Electron Microscopy of Pancreatic Beta Cell Neuroendocrine Tumors (NETs) in Multiple Endocrine Neoplasia Type 1 (MEN1) Knockout Mice Reveal an Adenomatous Phenotype with Depletion of Insulin Granules and Increased Mitochondrial Content
Introduction: Insulinomas are β cell neuroendocrine tumors (NETs) that secrete insulin, and ~4% of insulinoma patients have multiple endocrine neoplasia type 1 (MEN1). One in ten MEN1 patients present with an insulinoma. Previous reports describe insulinomas as possibly having typical granules (46.4%) or atypical smaller granules (34.3%), both associated with adenomas, or agranular cells (14.3%) associated with carcinomas. MEN1 knockout (Men1+/-) mice develop pancreatic NETs that are mostly insulinomas, and their ultrastructural phenotype is unknown. We hypothesized that these may resemble the adenoma phenotype with atypical granules.
Conference: 11th Annual ENETS Conference (2014)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Dr Gerard V Walls
Authors: Walls G V, Clark A, Thakker R, ...
Keywords: GEP-NET
#195 UMB-4 as New Monoclonal Somatostatin Receptor Antibody: Correlation of Immunostaining with Molecular Imaging using Somatostatin Receptor PET/CT
Introduction: Somatostatin receptors (SSTR) are known for an overexpression in neuroendocrine tumors (NET).
Conference: 8th Annual ENETS Conference (2011)
Category: Clinical
Presenting Author: Dr. Daniel Kaemmerer
Authors: Kaemmerer D, Peter L, Lupp A, Schulz S, ...
#676 Gene Silencing by Promoter Hypermethylation in SI-NETs
Introduction: Aberrant DNA methylation is an important feature of human cancer affecting corresponding gene expressions and clinical features in different tumors, including SI-NETs.
Conference: 10th Annual ENETS Conference (2013)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Omid Fotouhi
Keywords: SI-NET