Abstract Library

#3019 Incomplete Peptide Receptor Radionuclide Therapy Courses - Are We Selecting Our Patients Appropriately?

Introduction: As per recommendations, a Peptide Receptor Radionuclide Therapy (PRRT) with Lu-177 DOTATATE course usually consists of 4 cycles. Patients may discontinue a PRRT course early, either due to progression or toxicity. Limited data are available about predictive factors for PRRT early discontinuation.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Julian G

Authors: Gertner J, Groves J, Aziz B, Miah L, Furtado O'Mahony L,

Keywords: prrt,

#2986 Characterization of 142 Human Pancreatic Neuroendocrine Tumors: ATRX and DAXX Correlation with Clinical-Pathological Data

Introduction: Pancreatic neuroendocrine tumors (PNETs) are rare and heterogeneous neoplasms with a 10-year survival rate less than 30%. Up to 43% of them are driven by inactivating mutations in ATRX or DAXX. These are important players at chromatin remodeling, that when mutated prone cancer cells to initiate the alternative lengthening of telomeres (ALT). ALT phenotype correlates with in situ loss of expression of the proteins ATRX or DAXX and can be corroborated by telomere-FISH.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Gaspar T, Pinheiro J, Canberk S, İnce �, Tokat F,

Keywords: pancreas, pancreatic neuroendocrine tumors, PNETs, ATRX, DAXX, ALT, mosaic,

#2897 Comparison of 68Ga-DOTATATE PET/CT for Assessment of Response to Peptide Receptor Radionuclide Therapy after 2 and 4 Cycles of 177Lu-DOTATATE: Preliminary Single Academic Center Experience

Introduction: Peptide receptor radionuclide therapy (PRRT) usually leads to stable rather than decreased lesion size in neuroendocrine tumors (NETs), therefore RECIST criteria are not used to assess early response to treatment.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Song H, Kunz P, Fisher G, Franc B, Moradi F,

Keywords: PRRT, 68Ga-DOTATATE PET/CT, Neuroendocrine tumor,

#2866 Extrahepatic 68Ga-DOTATATE-Avid Tumor Volume and Serum Chromogranin A Predict Short-Term Outcome of 177Lu-DOTATATE in Late-Stage Metastatic Gastroenteropancreatic Neuroendocrine Tumors

Introduction: 177Lu-DOTATATE is an effective therapy for somatostatin receptor-positive neuroendocrine tumors (NETs). Often enough 177Lu-DOTATATE is used as the last treatment resort in advanced NET.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author:

Authors: Song H, Kunz P, Franc B, Moradi F, Fisher G,

Keywords: 177Lu-DOTATATE, PRRT, 68Ga-DOTATATE PET, Chromogranin A, 68Ga-DOTATATE avid tumor volume,

#2834 Tumor-Promoting Effects of the Transcriptional Regulator CUX1 in PanNET

Introduction: Previously, we identified CUX1 as mediator of metastatic behaviour and poor differentiation in human insulinomas. CUX1 mediated tumor-promoting functions via enhancing proliferation, resistance to apoptosis and angiogenesis in-vitro and in-vivo.

Conference: 17th Annual ENETSConcerence (2020)

Presenting Author: Weißbach J

Authors: Weißbach J, Schmitz R, Haybäck J, Perren A, Blank A,

Keywords: CUX1, RIP1Tag2, DAPK1, Apoptosis, Tumor Progression,