Abstract library

35 results for "Drug resistance".
#921 Combined Therapy with RAD001 e BEZ235 Overcomes Resistance of PET Cells to mTOR Inhibition
Introduction: Since the PI3K/Akt/mTOR proliferation axis is often deregulated in PETs, the mTORC1 complex inhibitor Everolimus (RAD001) represents an effective treatment for PETs. However, RAD001 leads to a re-activation of PI3K activity and phosphorylation of Akt, which may promote resistance to the treatment. Thus, direct inhibition of PI3K may represent a novel potential target for PETs.
Conference: 11th Annual ENETS Conference (2014)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Dr Gabriele Capurso
Keywords: mTOR, PI3K, resistance
#2091 Differential Signalling Pathways Drive Therapeutic Resistance in Neuroendocrine Tumors
Introduction: Most of the current therapeutic strategies used for neuroendocrine tumors (NETs) are insufficient due to poor knowledge of these tumours. Despite showing differentiated features, NETs often exhibit therapeutic resistance to common treatments similarly to other cancers. Although signalling abnormalities have been reported, molecular mechanisms responsible for this resistance phenomenon are yet to be understood.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr David Romano
Authors: Romano D, Gerard C, Poizat F, Niccoli P, ...
#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
#1739 A Kinomic Approach to Identify Signaling Proteins Involved in Drug Resistance in GastroEnteroPancreatic Neuroendocrine Tumors
Introduction: Most of the current therapeutic strategies used for neuroendocrine tumors (NETs) result in tumour growth stabilization, eventually followed by tumour progression. Thus, despite their original characteristics, NETs exhibit similar resistance features to treatments than other more common tumours.
Conference: 14th Annual ENETS conference (2017)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr David Romano
#1494 CDK-Inhibitors as New Therapeutic Treatment for Human Bronchial Carcinoids
Introduction: Bronchial Carcinoids (BC) are still orphan of medical therapy. We previously demonstrated that 70% of primary BC cultures are sensitive to Everolimus (E), an mTOR inhibitor, while 30% are not. We also observed that in 2 human BC cell lines, the NCI-H720 (sensitive to E) and NCI-H727 (resistant to E), mTOR resistance may be linked to a differential cell cycle protein expression (CyclinD1/E, CDK2/4, p27kip1/p27kip1phospho-Ser10), which is higher in BC resistant to E as compared to sensitive ones, suggesting an impaired p27 function
Conference: 13th Annual ENETS conference (2016)
Category: Medical treatment - Others
Presenting Author: MASTER DEGREE Katiuscia Benfini
#977 Inducing, Understanding and Overcoming Resistance to Everolimus in Pancreatic Neuroendocrine Tumors
Introduction: Treatment with the mTOR-inhibitor everolimus improves progression-free survival in advanced pancreatic neuroendocrine tumors (PNETs). However, adaptive resistance to mTOR inhibition is described.
Conference: 11th Annual ENETS Conference (2014)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Timon Vandamme
Keywords: everolimus
#962 Cyclin D1 Levels are Involved in the Resistance to m-TOR Inhibitors in Human Bronchial Carcinoids
Introduction: Bronchial carcinoids (BC) are still orphans of medical therapy. We previously demonstrated that the typical BC human cell line NCI-H727 is sensitive to Everolimus, in terms of cell viability reduction, while the atypical human BC cell line NCI-H720 is not. However, the mechanisms underlying this phenomenon have not been fully clarified.
Conference: 11th Annual ENETS Conference (2014)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Master degree Katiuscia Benfini
Keywords: BC, mTOR
#1090 p27kip1 Is Involved in the Resistance of Human Bronchial Carcinoids to m-TOR Inhibitors
Introduction: Bronchial carcinoids (BC) are still orphan of medical therapy. We previously demonstrated that the typical BC human cell line NCI-H727 is sensitive to Everolimus (E), in terms of cell viability reduction, with a G0 cell-cycle arrest, while the atypical human BC cell line NCI-H720 is not. The mechanisms underlying this phenomenon have not been clarified
Conference: 12th Annual ENETS Conference (2015)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: Master Degree Katiuscia Benfini
Keywords: RAD001, BC, p27kip1, Cell cycle
#2101 The Effect of Temozolomide on Pancreatic Neuroendocrine Tumors in Vitro and Role of MGMT and MMR System in Temozolomide Resistance
Introduction: Temozolomide (TMZ) has been suggested as a treatment option for patients with pancreatic neuroendocrine tumours (PNETs). The tumour response to TMZ has been linked to expression levels of O6-methylguanine-DNA methyltransferase (MGMT) and components of the mismatch repair (MMR) system.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: Drs. Anela Blazevic
#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)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr Jerome Cros
Authors: Cros J, Bucau M, Raffenne J, Soukeur M, ...