Abstract library

8 results for "Marinoni".
#856 DAXX and ATRX Loss Defines Chromosomal Instability and Poor Outcome in Pancreatic NET
Introduction: Chromosomal Instability (CIN) has been reported in pancreatic neuroendocrine tumors (pNETs) with poor outcome. However, no specific genetic background has been associated with CIN. Whole exome sequencing revealed mutations in DAXX (Death domain associated protein gene) and ATRX (ATR-X gene) in 40% of pNETs. DAXX and ATRX mutations in pNETs are associated with Alternative Lengthening of Telomeres (ALT) activation.
Conference: 11th Annual ENETS Conference (2014)
Category: ...none of the below
Presenting Author: PhD Ilaria Marinoni
Keywords: pNET, Daxx, Atrx, ALT, CIN
#1104 Interlaboratory Variability of MIB1 Staining in Well Differentiated Pancreatic Neuroendocrine Tumors
Introduction: In neuroendocrine tumors (NET) grading and staging are the only routinely performed procedures to judge prognosis. Proliferation index using MIB1 staining has been introduced to assess grading. There are discussions on cut-off definitions, automated counting and inter-observer variability.
Conference: 12th Annual ENETS Conference (2015)
Category: Pathology, grading, staging
Presenting Author: Dr. Blank Annika
Authors: Blank A, Wehweck L, Marinoni I, Boos L, ...
Keywords: MIB1, Ki67, grading, NET
#1111 Autophagy as a Possible Mechanism of Resistance in pNET Treatment
Introduction: Pancreatic neuroendocrine tumor (pNET) patients often display primary or secondary resistance to Sunitinib, an anti-angiogenic multi-receptor tyrosine kinase inhibitor which has been approved for the treatment of late stage pNETs. In late cancer stage autophagy often has a tumor promoting role. Sunitinib might additionally activate autophagy through inhibition of mTOR or induction of hypoxia.
Conference: 12th Annual ENETS Conference (2015)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Tabea Wiedmer
#1312 Epigenetic Remodeling upon DAXX and ATRX Loss in Pancreatic Neuro-endocrine tumors (pNETs)
Introduction: DAXX and or ATRX loss occur in 40% of sporadic pNETs. DAXX and ATRX participate in the cell epigenetic status maintenance. Epigenetic changes influence gene expression, function of telomeres and genomic stability. We hypothesize that DAXX/ATRX loss drives tumor progression in pNET through epigenetic changes affecting genomic stability.
Conference: 13th Annual ENETS conference (2016)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Ilaria Marinoni
Keywords: DAXX/ATRX, epigenetic, CIN
#1638 3D Primary Cell Culture: A New Promising Preclinical Model for Pancreatic Neuro-Endocrine Tumors (pNETs).
Introduction: The lack of adequate in vitro and in vivo preclinical models has hampered the identification of novel treatment options and the development of personalized therapy selection for pNET patients.
Conference: 14th Annual ENETS conference (2017)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: Ilaria Marinoni
#1780 PD-L1 Is Expressed in a Subset of Pancreatic Neuroendocrine Tumors (pNET)
Introduction: Programmed death 1 (PD-1) is an immune inhibitory receptor expressed on several immune cells, interacting with two ligands, PD-L1 and PD-L2. The former is expressed in many human cancers and is used as a selection criterion for indication of checkpoint inhibitor therapies. PD-L1 is also a potential target for checkpoint inhibitors in pNET therapy, however no data on prevalence of PD-L1 expression and potential associations to clinico-pathologic features is available.
Conference: 14th Annual ENETS conference (2017)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: MMed Charalampos Saganas
#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
#2128 Epigenetic Changes in DAXX and/or ATRX Negative Pancreatic Neuro-Endocrine Tumors
Introduction: The most commonly mutated genes in Pancreatic Neuroendocrine Tumors (PanNETs) are MEN1, DAXX and ATRX, which encode for proteins involved in epigenetic regulation. DAXX/ATRX mutated PanNETs are globally hypomethylated and behave clinically in a more aggressive way. Tumor pathways associated with these changes are still unclear. We hypothesize that DAXX/ATRX and MEN1 mutations mediate PanNET progression via epigenetic dysregulation.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Annunziata Di Domenico
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