Abstract library

13 results for "rb".
#3072 Rb and p53 Status Determination by Immunochemistry Is Complementary in Routine Practice to Genetic Testing of Neuroendocrine Neoplasms
Introduction: Rb and p53 status may help distinguishing well from poorly differentiated neuroendocrine neoplasms (NEN) and may predict response to chemotherapy. Studies correlating Rb/p53 genetic and immunohistochemistry were performed on high-quality frozen samples with high throughput techniques efficient for copy number determination. This situation differs from routine practice in which small deletions may be hard to detect on formalin-fixed paraffin-embedded (FFPE) samples with a gene panel approach.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: Dr Jerome Cros
#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
#2730 FOLFIRINEC, A Multi-Center, Randomized, Comparative Phase II Study of FOLFIRINOX vs Platinum-Etoposide as First Line Treatment for Metastatic Neuroendocrine Carcinoma of Gastroenteropancreatic or Unknown Origin, Associated with Molecular Profiling
Introduction: Grade 3 (G3) gastroenteropancreatic (GEP) neuroendocrine carcinoma (NEC) are rare diseases with a poor prognosis. FOLFIRINEC is a multicenter comparative phase II study of mFOLFIRINOX vs platinum-etoposide (PE) as first line treatment for metastatic G3 NEC of GEP or unknown origin.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Trials in Progress/Trials in Concept
Presenting Author: Dr Julien Hadoux
#2842 Transformation to High Grade 3 (G3) Neuroendocrine Neoplasia (NEN) – Molecular Imaging, Pathologic Features and Patient Outcomes
Introduction: Transformation of lower grade to Grade 3 (G3) NEN potentially impacts prognosis & treatment options.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Nuclear Medicine - Imaging and Therapy (PRRT)
Presenting Author: Dr Grace Kong
Authors: Kong G, Callahan J, Prall O, Michael M, ...
#2865 Can the Efficacy of Etoposide-Platinum Chemotherapy Be Predicted by p53/pRb Status in Grade 3 Neuroendocrine Neoplasms (G3 NEN)?
Introduction: Etoposide-platinum (EP) chemotherapy has long stood as the reference treatment of grade 3 neuroendocrine neoplasms (G3 NEN). However, G3 NEN are heterogeneous, including well differentiated tumours (NET) and poorly differentiated carcinomas of large (LCNEC) or small (SCNEC) cell type, whose identification can be challenging and response to EP be very variable, usually low in NET.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Medical treatment - Chemotherapy Somatostatin analogues, Interferon
Presenting Author: Dr Louis de Mestier
Authors: Lacombe C, De Rycke O, Chen R, Colnot N, ...
#2991 Gastroenteropancreatic (GEP) Neuroendocrine Neoplasia G3 (NEN G3) According to 2019 WHO Classification: A Comprehensive Clinicopathological Characterization Including Mismatch Repair (MMR) Proteins, PDL1 Expression and KRAS/BRAF Status
Introduction: In the 2019 WHO FOR NEN’S classification NETG3 have been distinguished from poorly differentiated neuroendocrine carcinoma (NEC). They are heterogeneous group concerning prognosis and treatment benefit.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: MD Gonzalo Ruiz
Keywords: G3 NEN, PD-L1, KRAS, BIOMARKERS
#409 Activation of cdk4/Cyclind D1 and the Associated Attenuation of Rb Function in Pancreatic Neuroendocrine Tumors (Pan-NETs)
Introduction: Pan-NET poses challenges in clinical management due to the lack of identifications of key oncogenic pathways in this neoplasm. There are no reliable biomarkers to predict the recurrence and progression and treatment option is limited. Genetic changes in Rb pathway can lead to Pan-NET formation in mice. Genomic investigations in humans have not revealed Rb pathway mutation.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Laura Tang
Authors: Tang L, ...
#788 A Novel Animal Model for Medullary Thyroid Carcinoma
Introduction: Medullary thyroid carcinoma (MTC) is a neuroendocrine cancer originating from calcitonin-producing C-cells. Surgical resection is the most effective treatment currently available. Understanding the molecular pathways mediating MTC is crucial for the development of novel therapies. Cyclin-dependent kinase 5 (Cdk5) and its activators, p35 and p25, have recently been implicated in MTC etiology. P25 is a cleavage product of p35 and the binding of p25 to Cdk5 leads to aberrant Cdk5 activity.
Conference: 10th Annual ENETS Conference 2013 (2013)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Dr Karine Pozo
Authors: Pozo K, Castro-Rivera E, Tan C, Siegl V, ...
Keywords: thyroid, Cdk5
#1435 Gastric Neuroendocrine Tumors - From Clinicopathologic to Immunophenotype Features
Introduction: Type 3 Gastric Neuroendocrine tumors (GNET3) natured in the absence of a specific gastric background of pathologic changes, while with poorer outcome due to a high rate of distant metastasis.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Pathology, grading, staging
Presenting Author: Professor Yuan Ji
Authors: Ji Y, Xie Y, Sun Y, Wang H, ...
#1507 The CDK4/6 Inhibitor Palbociclib Induces Anti-proliferative Mechanisms in Gastroenteropancreatic Neuroendocrine Neoplasms In Vitro
Introduction: Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are rare tumors with heterogeneous molecular backgrounds and mostly unknown druggable driver mutations. Especially for the midgut NENs effective treatment options are limited. The retinoblastoma pathway is often inactive due to CDK4/6 overexpression in pancreatic NENs. Palbociclib is a FDA approved (ER-positive and HER2-negative breast cancer) cyclin-dependent kinases 4 and 6 inhibitor and might impair cell cycle progression and proliferation.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Medical treatment - Targeted therapies
Presenting Author: Franziska Briest