Dual High Throughput Proteomic and Transcriptomic Screen for Predictive Biomarkers of Everolimus Sensitivity in Pancreatic NET Abstract #1557

Introduction: mTOR inhibitor Everolimus is approved for the treatment of well-differentiated PNET. The heterogeneity of the response rate and the potential toxicity warrant predictive biomarkers.
Aim(s): Define through a dual high throughput proteomic and transcriptomic approach predictive biomarkers of Everolimus sensitivity.
Materials and methods: Fifteen well-differentiated PNET tumors were minced in 300uM slices and cultured for 48h with no drug, Everolimus or BEZ235. Caspase 3 levels assessed by immunohistochemistry at 48h were used to define sensitive and resistant tumors. Transcriptomic profiles were determined and key oncogenic proteins were quantified by reverse phase protein array (RPPA).
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Dr Jerome Cros

To read results and conclusion, please login ...

Further abstracts you may be interested in

#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, ...
#898 Evaluation of Tumor Response to Targeted Therapies in Precision-Cut Slices of Human Pancreatic Neuroendocrine Tumors
Introduction: Patients with PNET might benefit from new therapeutic approaches acting on the mTOR signaling pathway. Culture of precision-cut slices could allow testing these molecules in human tumors, allowing personalized treatments.
Conference: 11th Annual ENETS Conference 2014 (2014)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: Margot Bucau
#1119 Gly388Arg FGFR4 Polymorphysm is Not Predictive of Everolimus Efficacy in Gastrointestinal Well Differentiated Neuroendocrine Tumors (NET)
Introduction: Preclinical data suggest that single nucleotide polymorphism substituting an arginine (R) for glycine (G) in codon 388 of the FGFR4 transmembrane domain may increase proliferation of xenografted neuroendocrine cell lines and decrease their sensitivity to everolimus by modulating STAT3 signaling and the mTOR pathway.
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Medical treatment - Targeted therapies
Presenting Author: Dr Jerome Cros
Authors: Cros J, Moati E, Raffenne J, Hentic O, ...
Keywords: N
#2707 Investigating the Crosstalk between MEN1, p53 and Notch Reveals Biomarkers of Formation of Primary Pancreatic Neuroendocrine Tumors
Introduction: Pancreatic neuroendocrine tumors (PNETs) comprise a heterogeneous group of endocrine tumors. Previous studies showed that mutations of p53 are extremely rare; whereas genetic changes of MEN1 frequently occur and are correlated with poor prognosis in PNET. Still, their roles in tumorigenesis remain elusive.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr Ylenia Capodanno
#2812 SILVELUL Project: Development of an New Potential Predictive Immunohistochemical Score (SPI) in Patients (pts) with Pancreatic Neuroendocrine Tumors (PanNET) Treated with CAPTEM or Everolimus
Introduction: Previously our group showed the potential use of a score based on MGMT, NDRG-1 and PHLDA-3 immunohistochemistry (IHC) expression as predictor of outcome in operated PanNET (Viúdez et al. Oncotarget 2016).
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Biomarkers
Presenting Author: MD PhD Antonio Viudez