Abstract library

95 results for "alkylating agent".
#1067 Gemox or Alkylating Agents in Neuroendocrine Tumors? The Help of O6-Methylguanine-DNA Methyltransferase (MGMT) Status?
Introduction: Alkylating agents are the backbone chemotherapy in neuroendocrine tumors (NET). However, gemcitabine associated to oxaliplatine (gemox) has showed interesting activity in a small study.
Conference: 12th Annual ENETS Conference (2015)
Category: Medical treatment - Chemotherapy
Presenting Author: Anne-Sophie Dussol
#748 O6-Methylguanine-DNA Methyltransferase Deficiency in Neuroendocrine Tumors and Correlation with Response to Alkylating Agents (Temozolomide, Streptozotocin, Dacarbazine)
Introduction: Low O6-methylguanine-DNA methyltransferase (MGMT) expression is predictive of response to alkylants in some tumor types.
Conference: 10th Annual ENETS Conference (2013)
Category: PRRT-Ablative therapies-Endoscopic treatment
Presenting Author: MD thomas Walter
Keywords: MGMT
#1471 Chemotherapy for Stage IV Sporadic Pancreatic Neuroendocrine Tumors (pNET): Are Partial Responses to Post-first Line Chemotherapy Predictable by Response/Type of First Line Chemotherapy?
Introduction: Three types of chemotherapy are recommended for stage IV pancreatic neuroendocrine tumors (pNETs): streptozocin (STZ)-, dacarbazine (DCZ)- and oxaliplatin (OX)-based. Whether cross resistance exists is unknown.
Conference: 13th Annual ENETS conference (2016)
Category: Medical treatment - Chemotherapy
Presenting Author: Medical Doctor Vincenzo Marotta
Authors: Marotta V, Malka D, Walter T, Do Cao C, ...
#55 Metronomic combination therapy including temozolamide, bevacizumab and somatostatin analogue for the treatment of malignant gastroenteropancreatic neuroendocrine tumors
Introduction: Malignant gastroenteropancreatic neuroendocrine tumors (GEPNETS), mainly carcinoids, are not considered to be particularly chemotherapy-sensitive to conventional chemotherapeutic schemes. Long-standing evidence suggests these tumors to be highly vascularised and responsive to antiangiogenic strategies. Newest reports demonstrate benefit by the use of temozolamide, an oral alkylating agent similar to intravenous dacarbazine. The DNA repair enzyme O6-alkylguanine–DNA alkyltransferase (AGAT) confers cancer cell resistance to O6-alkylating agents such as temozolamide through its ability to remove methyl/alkyl groups from the O6-position of guanine, thus correcting drug-induced DNA damage.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: DR Anna Koumarianou
#889 Delayed Haematological Toxicity in Patients Treated with 177Lu-octreotate Peptide Receptor Radiotherapy (PRRT) for Metastatic Neuroendocrine Tumors (NETs)
Introduction: PRRT is associated with a high tumor control rate and early toxicity seems acceptable (haematological grade 3-4 toxicity: 11.3%). Long-term monitoring of haematological toxicity is unavailable.
Conference: 11th Annual ENETS Conference (2014)
Category: PRRT-Ablative therapies-Endoscopic treatment
Presenting Author: Dr Olivia Hentic
#1337 O6-Methylguanine DNA Methyltransferase (MGMT) Deficiency and Response to Aranoza-Based Therapy in Patients with Neuroendocrine Tumors
Introduction: Aranoza (3-α-L-arabinopyranosyl-1-methyl-nitrosourea) – nitrosourea derivative, as STZ. O6-methylguanine DNA methyltransferase (MGMT) is an enzyme implicated in chemotherapy resistance to alkylating agents and its low levels are associated with sensitivity to them.
Conference: 13th Annual ENETS conference (2016)
Category: Medical treatment - Chemotherapy
Presenting Author: Svetlana Polozkova
#1546 O6-Methylguanine DNA Methyltransferase (MGMT) Expression by Immunochemistry May Help Predict Response to Streptozotocin-based Chemotherapy in Pancreatic Neuroendocrine Tumours
Introduction: Streptozotocin (STZ) is an alkylating agent inducing DNA damage mainly repaired by MGMT. STZ-based chemotherapy is the first line treatment of non-resectable well-differentiated PNET. As for temozolomide, tumour MGMT deficiency may predict the efficacy of STZ in PNET.
Conference: 13th Annual ENETS conference (2016)
Category: Medical treatment - Chemotherapy
Presenting Author: Dr Olivia Hentic
Authors: Hentic O, Cros J, Zappa M, Rebours V, ...
Keywords: MGMT, Streptozotocin, PFS
#1900 Well-Differentiated G1/G2 Pancreatic NETs Can Evolve Towards G3 Tumors
Introduction: Well-differentiated G1/G2 pancreatic NET (pNET) may evolve towards well-differentiated G3 pNET or carcinoma (pNEC)
Conference: 14th Annual ENETS conference (2017)
Category: Pathology, grading, staging
Presenting Author: Muller Nelly
Authors: Hentic O, Cros J, Rebours V, Zappa M, ...
#2018 Ex Vivo Activity of Cytotoxic Drugs and Targeted Agents in Small Intestinal Neuroendocrine Tumors
Introduction: Small Intestinal Neuroendocrine Tumours (SI-NETs) are considered to be generally resistant to systemic treatment. To date predictive markers for drug activity are lacking.
Conference: 15th Annual ENETS conference (2018)
Category: Medical treatment - Chemotherapy Somatostatin analogues, Interferon
Presenting Author: Kosmas Daskalakis
#741 Lanreotide Activity and Synergy in Combination with Targeted Agents in Gastrointestinal Neuroendocrine Tumors (GI-NET): Ex Vivo Analysis of Programmed Cell Death (EVA/PCD) in GI-NETs Isolated from Patients with Advanced Disease
Introduction: Somatostatin receptor ligation can affect vascular signals, induce apoptosis and provide objective responses in some GI-NET patients.
Conference: 10th Annual ENETS Conference (2013)
Category: Medical treatment - SMS analogues, interferon
Presenting Author: Nick Brown