Abstract library

276 results for "Mismatch repair (MMR) system".
#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
#1845 Mismatch Repair (MMR) Protein Expression is Uncommon in Poorly Differentiated Neuroendocrine Carcinoma
Introduction: Microsatellite instability (MSI) has been reported to occur in a significant proportion of neuroendocrine carcinoma (NEC) and mixed adenoneuroendocrine carcinomas (MANEC) (11 out of 89 cases, Sahnane et al, ERC 2015). It might be predictive of response to immunotherapy.
Conference: 14th Annual ENETS conference (2017)
Category: Biomarkers
Presenting Author: Dr Julien Hadoux
#174 Loss of Expression of the DNA Mismatch Repair Proteins MLH1 and MSH2 is Rare in Pancreatic and Small Intestinal Neuroendocrine Tumors
Introduction: Loss of expression of the DNA mismatch repair (MMR) proteins MLH1 and MSH2, which is known to correlate strongly with MSI, has not been well studied in pancreatic or small intestinal NETs.
Conference: 8th Annual ENETS Conference (2011)
Category: Basic
Presenting Author: Dr Daniel Rayson
Authors: Rayson D, Arnason T, Sapp H, Barnes P, ...
#2123 Large Cell Neuroendocrine Carcinoma (LCNEC) Associated with a Dysplastic Sessile Serrated Lesion (SSL) and Deficient Mismatch Repair (MMR) Protein: A Case Report.
Introduction: Colorectal poorly differentiated neuroendocrine carcinomas (NECs) are rare, but extremely aggressive. The mechanisms of their carcinogenesis and aggressiveness are still largely unknown. Recently Nobuyoshi Takizawa showed that the molecular features of colorectal NECs are similar to those of adenocarcinoma and not to those of NETs and they were more evident in small cell NECs than in large cell NECs. This is supported by combined cases with conventional adenoma/adenocarcinoma and NECs. Stelow et al showed that DNA mismatch repair proteins were intact in 14/15 colorectal small cell NECs. Two cases of LCNECs arising from SSL have been reported so far in the literature.
Conference: 15th Annual ENETS conference (2018)
Category: Case reports
Presenting Author: Dr Tu Vinh Luong
Authors: Luong T V, Nisa Z, ...
#1468 Evaluation of ENETS and AJCC Staging Systems for Pancreatic Neuroendocrine Neoplasms: A Multicenter Study in China.
Introduction: Accurate staging system is crucial for p-NENs management. The European Neuroendocrine Tumor Society (ENETS) and the International Union for Cancer Control/ American Joint Cancer Committee/ World Health Organization (UICC/AJCC/WHO) advocated their TNM staging system for pancreatic neuroendocrine neoplasms (p-NENs) respectively.
Conference: 13th Annual ENETS conference (2016)
Category: Pathology, grading, staging
Presenting Author: Dr Kaizhou Jin
Authors: Jin K, Zhang Y, Luo G, Sun J, ...
#1657 Establishment of Japan NeuroEndocrine Tumor Society and Its Registration System
Introduction: In 2012, many nation-wide gastroenterologists, endocrinologists, surgeons, radiologists and pathologists have established Japan NeuroEndocrine Tumor Society (JNETS) in Japan. JNETS is now composed of 304 institutes.
Conference: 14th Annual ENETS conference (2017)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: M.D., Ph.D. Toshihiko Masui
Authors: Masui T, Imamura M, Ito T, Unno M, ...
#1026 Systemic Therapy in Advanced Gastroenteropancreatic Neuroendocrine Tumors (GEP-NET) and Ki Index 5-10%
Introduction: Phase III trials of sunitinib, everolimus and octreotide lar confirmed that these drugs improved progression-free survival (PFS) in well-differentiated PNET, low/intermediate grade pNET and well-differentiated midgut NETs, respectively. CLARINET is the 1st phase III study that showed PFS benefit of SSA, lanreotide, in both P- and midgut NET and in Ki-67 5-10%.
Conference: 11th Annual ENETS Conference (2014)
Category: Medical treatment - Targeted therapies
Presenting Author: PhD Paula J Fonseca
#401 Status of DNA Repair and Cell Proliferation Markers in High Grade Neuroendocrine Carcinoma of the Uterine Cervix (cNEC) Compared to Small Cell Carcinoma of the Lung (SCLC)
Introduction: Most patients (pts) with cNEC are treated with chemotherapy regimens used for SCLC due to both tumors’ histological similarity and aggressive behavior.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Boris Naraev
#733 Analysis of Predictive Markers of Response to Chemotherapy in Microdissected Components of Mixed Neuroendocrine/non-Neuroendocrine Carcinomas
Introduction: Mixed neuroendocrine (NE)/non-NE carcinomas lack pathological or molecular prognostic or predictive markers.
Conference: 10th Annual ENETS Conference (2013)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: Marco Volante
#620 Multicenter Retrospective Analysis of Systemic Chemotherapy for Advanced Poorly Differentiated Neuroendocrine Carcinoma of Digestive System
Introduction: No standard chemotherapy is established for advanced poorly differentiated neuroendocrine carcinoma (PDNEC) originating from the gastrointestinal tract (GI) or the hepato-biliary-pancreatic system (HBP).
Conference: 10th Annual ENETS Conference (2013)
Category: Clinical cases/reports
Presenting Author: MD Tomohiro Yamaguchi