Abstract library

6 results for "dedifferentiation".
#1880 Dedifferentiation of Metastatic Pancreatic Neuroendocrine Neoplasms
Introduction: Neuroendocrine neoplasms (NENs) exhibit significant differences in growth behavior. Their metastatic disease may dedifferentiate presenting a more aggressive biological behavior
Conference: 14th Annual ENETS conference (2017)
Category: Epidemiology/Natural history/Prognosis - Prognosis
Presenting Author: MD Krystallenia Alexandraki
#1900 Well-Differentiated G1/G2 Pancreatic NETs Can Evolve Towards G3 Tumors
Introduction: Well-differentiated G1/G2 pancreatic NET (pNET) may evolve towards well-differentiated G3 pNET or carcinoma (pNEC)
Conference: 14th Annual ENETS conference (2017)
Category: Pathology, grading, staging
Presenting Author: Muller Nelly
Authors: Hentic O, Cros J, Rebours V, Zappa M, ...
#536 Orexins Exert a Pro-Apoptotic Effect on Neuroendocrine Tumors (NETs) in an Ex Vivo Culture Model of Tissue Slices
Introduction: Ex vivo culture models of tissue slices are suitable to test the effect of antitumor agents in human tumors. The orexins are neuropeptides binding to G protein-coupled receptors (OX1-R and OX2-R), exerting a pro-apoptotic effect in human colon and pancreatic cancer cell lines.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Dr Maxime Palazzo
#1543 Is True Non-Secretion of Chromogranin A an Unfavorable Prognostic Factor in Patients with ENETs TNM Stage IV Gastroenteropancreatic Neuroendocrine Tumors?
Introduction: Chromogranin A (CgA) is the best available serum marker for the work-up of gastroenteropancreatic NETs (GEP-NETs) and correlates with tumor volume & biological activity. During diagnosis & follow-up we found patients with elevated CgA levels and patients without elevated CgA levels (=‘true non-secretors’). We postulated that lack of secretion is a sign of dedifferentiation with a poorer prognosis.
Conference: 13th Annual ENETS conference (2016)
Category: Biomarkers
Presenting Author: drs. Kimberly Kamp
Keywords: GEP-NET, CgA, prognosis
#1596 Triple Tracer Imaging Approach for the Non-Invasive Assessment of Chemokine Receptor 4 Expression in Gastroenteropancreatic Neuroendocrine Tumors
Introduction: The theranostic twins [68Ga]Pentixafor and [177Lu]Pentixather for chemokine-directed endoradiotherapy (ERT) were recently developed.
Conference: 14th Annual ENETS conference (2017)
Category: Imaging (radiology, nuclear medicine, endoscopy)
Presenting Author: Dr. Rudolf Werner
Authors: Werner R, Weich A, Higuchi T, Schmid J, ...
#2141 Potential Role of SST5TMD4-Derived Peptides in the Malignancy of Neuroendocrine Tumors and Other Endocrine-Related Cancer Cells
Introduction: Extracellular fragments derived from membrane receptors can play relevant functional roles in certain tumoral pathologies and could provide novel diagnostic or therapeutic tools. We have identified a novel truncated somatostatin receptor type 5 variant, sst5TMD4, which is overexpressed and functionally active in different endocrine-related cancers, including neuroendocrine tumors (NETs). Interestingly, sst5TMD4 has 4 transmembrane domains and its C-terminal tail is consequently exposed towards the extracellular matrix, and could, therefore, be the substrate for proteolytic enzymes.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Sergio Pedraza-Arévalo
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