Abstract library

58 results for "signalling network".
#3320 TGF-β increase caspase activation and migration in typical bronchial carcinoids
Introduction: Typical bronchial carcinoids (TBC) are well-differentiated neuroendocrine neoplasms (NEN) whose management can still be very challenging due to reduced sensitivity to therapy. Previous studies have reported TGF-β’s ability to activate mTOR pathway and induce epithelial to mesenchymal transition (EMT). Moreover, preliminary results show an overexpression of TGF-β signalling and caspase activation in TBC.
Conference: 18th Annual ENETS Conference 2021 (2021)
Category: Basic science - Signalling pathways, receptors, biomarkers
Presenting Author: Patricia Borges de Souza
#2800 Thymosin Beta 4 Is an Autocrine Mitogen for Neuroendocrine Tumour Cells
Introduction: The most commonly used NET marker chromogranin A, has a sensitivity between 60-90% and a specificity of less than 50%, hence better NET markers are needed. Previous secretome analysis using BON1, NCI-H727 and SHP-77 cell lines has led to the discovery of various candidate NET markers. One such marker is Thymosin Beta 4 (TB4). TB4 is a small 43 amino acid intracellular peptide first isolated from bovine thymus tissue.TB4 or its oxidised form TB4SO are thought to play a role in various aspects of cancer biology including tumour invasion, metastasis and apoptosis.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Ponni Balasundaram
#1001 Forkheadbox Proteins as Novel Drug Targets in Gastroenteropancreatic Neuroendocrine Tumor Disease: Inhibition of FoxM1 Exerts Antiproliferative Effects in GEP-NEN Cell Lines
Introduction: Forkheadbox proteins (Fox proteins) are transcriptions factors. They are highly conserved key players in a large number of cellular processes. Fox proteins have been described as acting as both tumor suppressors and oncogenes. Most notably, they operate in the context of the majority of cancer-related pathways. Information about the fuunction of these proteins in gastroenteropancreatic neuroendocrine neoplasias is scant.
Conference: 11th Annual ENETS Conference 2014 (2014)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: PD Dr. Patricia Grabowski
#1463 Graph-Theoretic Definition of Neuroendocrine Disease – A Tumor Specific Mathematical Toolbox for Assessing Neoplastic Behaviour
Introduction: Widespread availability of high throughput screens has led to the rapid adaptation of mathematics in biomedicine.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Biomarkers
Presenting Author: Professor Mark Kidd
Authors: Drozdov I, Kidd M, Modlin I, ...
#1737 The Role of MAPK-Signalling in Pancreatic Neuroendocrine Cancer
Introduction: Upon diagnosis, 65% of pNET patients suffer from metastatic or locally unresectable disease. The receptor tyrosine kinase inhibitor sunitinib and the mTOR inhibitor everolimus have set precedence for successful targeted therapies in pNET disease. However, response prediction and treatment alternatives still do not meet medical needs. Recent studies revealed mutations in RAS oncogenes in a fraction of tumours, emphasising a potential role of the MAPK pathway as therapeutic target.
Conference: 14th Annual ENETS conference 2017 (2017)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Julia Hoffmann
#2983 Differential TGF-β Signalling in Typical and Atypical Bronchial Carcinoids
Introduction: Typical and atypical bronchial carcinoids (TBC and ABC) are well-differentiated neuroendocrine neoplasms (NEN). Metastatic BC having low to moderate mitotic count may still be treated with somatostatin analogues and mTOR inhibitors; however, TBC and ABC have been reported to respond very differently to therapy and an effective treatment algorithm is still lacking. TGF-β is known for its ability to activate mTOR pathway and induce epithelial mesenchymal transition, affecting cell pathophysiological capabilities such as proliferation, migration and tissue invasiveness.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Patricia Borges de Souza
#2980 Metabolic Dysregulation and Circadian Clock in Cellular Models of Neuroendocrine Tumors
Introduction: The circadian clock genes encode transcription factors whose interaction with nuclear receptors allows the regulation of cellular metabolism.The invalidation of the genes of the clock core is associated with the development of many endocrine diseases including neuroendocrine cancer. Recently, the family of transcriptional coactivators PGC-1a has been identified as a key element in the integration of cellular metabolic state with the circadian clock. PRC, as a member of the PGC-1 family, was able to interact with several transcription factors, including the CLOCK factor. The specific induction of this PRC factor by the cell cycle, to modulate the energy function, the MAPkinase pathway and the expression of microRNAs, makes it a key factor in the metabolic adaptation of cancer cells.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Pr Frederique Savagner
Authors: Savagner F, Le Pennec S, ...
#3034 Somatostatin Analogs for Pancreatic Neuroendocrine Tumors: Is There Any Benefit When Ki-67 Is ≥ 10%?
Introduction: The antiproliferative effect of first-line long acting somatostatin analogs (SSA) in advanced gastro-entero-pancreatic neuroendocrine tumors (GEP-NETs) was shown in the PROMID and the CLARINET trials. Efficacy data in pancreatic NETs (PanNETs) with Ki-67 ≥ 10% are limited.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - Chemotherapy Somatostatin analogues, Interferon
Presenting Author: MD Teresa Alonso Gordoa
#3073 The Role of Rb as a Prognostic Factor in Grade 3 Poorly Differentiated Neuroendocrine Carcinoma (G3NEC) Treated by First Line Platinum-Etoposide Combination, a Retrospective Study
Introduction: G3NEC are heterogeneous and aggressive diseases which can arise in different organs. Platinum-etoposide combination is used as first line treatment whatever the primary. Rb has been suggested to be a predictive/prognostic factor.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: Dr Julien Hadoux
#66 Adrenocortical cancer: a therapeutic approach with everolimus (RAD001)
Introduction: Adrenocortical cancer (ACC) is a rare disease with very poor outcome. ACC responds poorly to standard chemotherapy. Mitotane, used as adjuvant therapy to surgery, prolongs recurrence-free survival, but the response is limited to 23% of patients and resistance occurs in the majority of patients (1). There is no curative therapy for ACC. Pre-clinical studies have shown involvement of both IGF-2/IGF-1R and Akt/mTOR pathways in ACC, and IGF-1R and mTOR inhibitors inhibited cell proliferation of human adrenocortical carcinoma cell lines in vitro (2,3,4).
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Dr Maria Gueorguiev