Abstract library

43 results for "tryptophan metabolism".
#2999 Aberrant Tryptophan Metabolism in Stromal Cells Is Associated with Mesenteric Fibrosis in Small Intestinal Neuroendocrine Tumours
Introduction: Increased levels of serotonin secretion are associated with mesenteric fibrosis (MF) in small intestinal neuroendocrine tumors (SI-NETs). However, only a proportion of patients with increased serotonin production will develop mesenteric fibrosis.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Drs. Anela Blazevic
#1099 Niacin (vitamin B3) Suppletion in Patients with Serotonin Producing Neuroendocrine Tumors
Introduction: Tryptophan is the precursor of serotonin and niacin (vitamin B3), critical for normal cellular metabolism. Tryptophan and niacin can be deficient in patients with serotonin producing neuroendocrine tumors (NETs). Niacin deficiency can lead to symptoms including pellagra.
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Medical treatment - Others
Presenting Author: MD Grietje Bouma
#1436 Up-Regulation of the Immunoregulatory Enzyme Indoleamine-2,3-Dioxygenase (IDO) with Consecutive Tryptophan Depletion Predicts Death in Patients with Neuroendocrine Neoplasia
Introduction: Data from a considerable number of malignancies demonstrate that depletion of the essential amino acid tryptophan via induction of the immuno-regulatory enzyme Indoleamine-2,3-dioxygenase (IDO) serves as an important tumour escape strategy and is of prognostical importance.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Biomarkers
Presenting Author: Dr René Pschowski
Authors: Pschowski R, Pape U F, Fusch G, Jann H, ...
#1362 Targeting Tumor Metabolism in NETs: A Novel Mechanism of Action of the Somatostatin Analog Lanreotide
Introduction: One of the hallmarks of cancer is reprogramming of energy metabolism, characterized by a shift to aerobic glycolysis. This metabolic switch provides cancer cells appropriate conditions required for enhanced proliferation and survival. The effects of somatostatin on tumor metabolism had not been determined yet.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Ido Wolf
Keywords: metabolism, glucose
#2287 Mitochondrial or Aerobic Glycolysis Oriented Metabolism May Define Pancreatic Neuroendocrine Tumors (PanNET) Resistance to mTOR-Targeting Therapies
Introduction: The mTOR inhibitor Everolimus is approved for the treatment of PanNET and no predictive biomarker is available. mTOR is a central node controlling mitochondrial and aerobic glycolytic metabolisms.
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr Jerome Cros
Authors: Cros J, Bucau M, Raffenne J, Soukeur M, ...
#1124 Correlation Between the 18F-FDG Uptake and Pathological Data in Well-Differentiated Digestive and Pulmonary Neuroendocrine Tumors (NET)
Introduction: The 18F-FDG uptake assessed by PET/CT is correlated to prognosis in most tumors.
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Pathology, grading, staging
Presenting Author: Margot Bucau
#1412 MiR-196a Is Specifically Regulated in FDG-PET Positive and Negative Small Intestinal Neuroendocrine Tumor Patients at Late Stage of Disease
Introduction: This collaborative research plan aims at elucidating the glycolytic metabolism in advanced FDG-PET positive (+) and FDG-PET negative (-) small intestinal neuroendocrine tumor (SI-NET) patients treated with Lutetium peptide receptor radionuclide therapy (177Lu-PRRT).
Conference: 13th Annual ENETS conference 2016 (2016)
Category: ...none of the above
Presenting Author: PhD Valeria Giandomenico
#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, ...
#121 Serotonin synthesis inhibitors: a novel approach for managing gastrointestinal symptoms in carcinoid syndrome
Introduction: Carcinoid syndrome (CS) occurs when metastatic carcinoid tumors secrete large amounts of serotonin (5-HT) and other bioactive substances into systemic circulation, causing a variety of symptoms, including GI symptoms such as profound diarrhea. Reduction in 5-HT production by the tumor would be expected to improve symptoms in patients with CS.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Jay L Mitchell
#704 Carbohydrate Metabolism Disorders in Patients with Pancreas Neuroendocrine Tumors (PNET) Based on Patients from Department of Endocrinology in 2009-2011
Introduction: Pancreatic Neuroendocrine Tumors (PNET), 80% of which are non-functioning, can be hormonally active.
Conference: 10th Annual ENETS Conference 2013 (2013)
Category: Epidemiology/Natural history/Prognosis - Descriptive epidemiology
Presenting Author: Dr Elżbieta Andrysiak-Mamos