Abstract library

555 results for "vascular endothelial growth factor".
#151 Rationale for combining mTOR with other targeted agents in the treatment of neuroendocrine tumors
Introduction: Advanced neuroendocrine tumors (NETs) are aggressive and incurable with standard treatment. Many cellular targets are being evaluated in this patient population, including mammalian target of rapamycin (mTOR), a kinase that is the central regulator of several signaling pathways related to cell growth, angiogenesis, and bioenergetics. Because mTOR serves as a neoplastic switch activated by many cancer-related mutations, mTOR inhibition may have broad efficacy across tumor types, including NETs. Somatostatin analogs (SSAs) have long been used to treat carcinoid symptoms in NET patients. The SSA octreotide long-acting release (LAR) demonstrated significant antitumor effects against advanced midgut NETs in the phase III PROMID study.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Kjell Öberg
Authors: Öberg K, Yao J C
#2008 Preliminary Evaluation of Influence of Different Targeted Drugs of Vascular Endothelial Growth Factor Signaling Pathway on the Proliferation of Neuroendocrine Neoplasm Cell Lines
Introduction: Sunitinib and bevacizumab are intracellular and extracellular inhibitor of vascular endothelial growth factor(VEGF) pathway respectively, the influence of both of which on the proliferation of neuroendocrine neoplasm (NEN) cell lines in vitro was not known yet.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: Professor Jie Chen
Authors: Zhang Y, Chen L, Lin Y, Chen M, ...
#2011 Expression and Clinical Significance of Vascular Endothelial Growth Factor Receptor 3 (VEGFR3) and Phospho-VEGFR3 in Gastroenteropancreatic Neuroendocrine Neoplasms
Introduction: The expression of vascular endothelial growth factor Receptor 3 (VEGFR3) and phospho-VEGFR3 (pVEGFR3) in gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN) and their clinical significance are still unknown.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Professor Jie Chen
Authors: Zhang Y, Chen L, Lin Y, Chen M, ...
#2012 Expression and Clinical Significance of Vascular Endothelial Growth Factor D in Gastroenteropancreatic Neuroendocrine Neoplasms
Introduction: The expression of vascular endothelial growth factor D (VEGF-D) in tumor cells versus stroma cells in gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN) and its clinical significance is still unknown.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Professor Jie Chen
Authors: Zhang Y, Chen L, Lin Y, Chen M, ...
#1374 The Usefulness of Assessment the Serum Concentrations of Vascular Endothelial Growth Factor (VEGF) and Its Soluble Receptor Type 2 (VEGFR2) in Patients with Neuroendocrine Neoplasm (NEN)
Introduction: Angiogenesis plays an important role in tumour growth and disease progression. VEGF is a angiogenesis-stimulating factor. VEGFR2 has antiangiogenic properties.
Conference: 13th Annual ENETS conference (2016)
Category: Biomarkers
Presenting Author: MD PhD Violetta Rosiek
Authors: Rosiek V, Kos-Kudła B, Zemczak A, ...
#77 Angiogenesis markers after hepatic artery embolization of liver metastases in patients with neuroendocrine tumors
Introduction: In the event of diffuse hepatic metastases, hepatic artery embolization (HAE) can be a successful treatment option in patients with well-differentiated neuroendocrine tumors (WNET). Although there are suggestions of activation of the angiogenesis by HAE, no information is available about the development of growth factors caused by vascular obstruction with embolization.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: MSc Catharina M Korse
Authors: Korse C M, Bonfrer J M, Taal B G, ...
#16 Endoglin as indicator of metastatic neuroendocrine tumors of the pancreas
Introduction: Neuroendocrine tumors of the pancreas are rare, highly vascularized tumors. Endoglin, a Transforming Growth Factor-β co-receptor, is a marker for angiogenic endothelial cells. Angiogenesis is required for tumor progression and the development of metastases. Recently, endoglin expression was found to be a prognostic marker in pancreatic carcinomas. However, the role of endoglin in neuroendocrine pancreatic tumors has so far not been studied.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Patricia Kuiper
#55 Metronomic combination therapy including temozolamide, bevacizumab and somatostatin analogue for the treatment of malignant gastroenteropancreatic neuroendocrine tumors
Introduction: Malignant gastroenteropancreatic neuroendocrine tumors (GEPNETS), mainly carcinoids, are not considered to be particularly chemotherapy-sensitive to conventional chemotherapeutic schemes. Long-standing evidence suggests these tumors to be highly vascularised and responsive to antiangiogenic strategies. Newest reports demonstrate benefit by the use of temozolamide, an oral alkylating agent similar to intravenous dacarbazine. The DNA repair enzyme O6-alkylguanine–DNA alkyltransferase (AGAT) confers cancer cell resistance to O6-alkylating agents such as temozolamide through its ability to remove methyl/alkyl groups from the O6-position of guanine, thus correcting drug-induced DNA damage.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: DR Anna Koumarianou
#415 Bevacizumab Plus Octreotide and Metronomic Capecitabine in Patients with Metastatic Well-to-Moderately Differentiated Neuroendocrine Tumors. The XELBEVOCT Multicenter Phase II Study
Introduction: A phase II study was designed to assess the activity and safety of metronomic oral capecitabine, bevacizumab, and octreotide (Xelbevoct) in metastatic well-to-moderately differentiated neuroendocrine neoplasms (WMD-NEN). We also assessed the predictive role for progression free survival (PFS) of hypertension, proteinuria and vascular endothelial growth factor (VEGF) polymorphisms and the predictive role of vitamin D on proteinuria and PFS.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: MD, PhD Maria Pia Brizzi
Keywords: bevacizumab
#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, ...