Abstract library

128 results for "radioligand binding assay".
#2294 Identification and Validation of the Angiotensin II Receptor Type 1 as a Possible Anti-Cancer Target in Neuroendocrine Tumors
Introduction: Neuroendocrine tumours (NETs) have been found to overexpress somatostatin receptors (SSTRs), which led to the development of somatostatin analogs utilized for diagnostics and therapeutics. However, around 30% of all NETs do not respond to somatostatin based approaches, leading to an interest to find and characterize alternative cell surface targets.
Conference: 15th Annual ENETS conference (2018)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr. Carsten Grötzinger
#152 Validation of a new assay that uses 2 monoclonal antibodies to measure intact and fragmented plasma CgA levels
Introduction: Plasma chromogranin A (CgA) levels are elevated in a variety of neuroendocrine tumors (NETs) and are used to aid in diagnosis, prognosis, and monitoring of treatment effects in NETs patients. We evaluated a newer sandwich ELISA assay (Cisbio US, Bedford, MA, USA) that utilizes two monoclonal antibodies that bind to the mid-region of the CgA protein and allow measurement of intact and fragmented circulating CgA. The results from the assay validation indicative of its overall robustness in terms of sensitivity, specificity, reproducibility, and stability are presented here.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Monica Motwani
#487 Validation of Chromogranin A Assays in Patients with Neuroendocrine Tumors
Introduction: CgA is the most important biochemical marker for evaluation of NETs. Different assays with different accuracy exist.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Lise Brehm Høj
Keywords: neuroendocrine, CgA, assay
#2215 Development of Multiplex Biomarker Assay to Subtype Pancreatic Neuroendocrine Tumors (PanNETs) with Distinct Prognosis and Mutations
Introduction: Overall 5-year survival for PanNETs ranges from 25-100%. The treatment paradigm for PanNETs largely based upon grades, which is significantly heterogeneous. We previously defined three molecular subtypes (distributed grades) of PanNETs using PanNETassigner signature. There is an unmet clinical need for prognostic and predictive biomarkers and clinically-relevant assays to complement grade and improve patient stratification.
Conference: 15th Annual ENETS conference (2018)
Category: Biomarkers
Presenting Author: Dr Anguraj Sadanandam
#1033 Androgens Regulate SMAD Ubiquitination Regulatory Factor-1 Expression and Prostate Cancer Cell Invasion
Introduction: Prostate cancer is the most commonly diagnosed male cancer and is a hormone-driven disease. Androgens have been recognized as a major promoter of PCa development and progression. However, the mechanism of androgen action in PCa, especially in PCa cell invasion remains largely unclear. SMAD ubiquitination regulatory factor-1 (SMURF1) is a C2-WW-HECT-domain E3 ubiquitin ligase that plays important roles in cancer cell metastasis. Whether there is a relationship between androgens and SMURF1 express is not known.
Conference: 12th Annual ENETS Conference (2015)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Gang Xiaokun
Authors: Xiaokun G, Guixia W, ...
#1295 Intra-Operative Portal Vein Insulin Assay Combined with Occlusion of the Pancreas for Complicated Pancreatogenous Hypoglycemia
Introduction: Pancreatogenous hypoglycemia is a rare endocrine disorder. The precise localization of hypersecreting tissue and determination of complete resection are two main challenges for complicated pancreatogenous hypoglycemia, such as multiple endocrine neoplasia syndromes type-1 (MEN-1) and nesidioblastosis.
Conference: 13th Annual ENETS conference (2016)
Category: Surgical treatment
Presenting Author: Yang Zhiying
Authors: Yang Z, Tan H, Sun Y, Si S, ...
#468 mir-129-5p and Let-7 are Down-Regulated in Carcinoid Tumors
Introduction: miRNAs are small non-coding RNAs that post-transcriptionally regulate gene expression by binding to complementary sequences on target mRNAs and their expression is often dysregulated in cancer.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: Kristina Døssing
#517 Initial Experience of Biological Stability and Image Timing of Ga-68 DOTANOC in Somatostatin Receptor (sstr) Expressing Organ and Tumor
Introduction: Since Ga68 DOTATATE has a high affinity to only sstr2 but no affinity to sstr3 and sstr5, Ga68 DOTANOC has been suggested to be a better radioligand with higher affinity to sstr3 and sstr5 and high affinity to sstr2, as well.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Emre Demirci
Authors: Demirci E, Kabasakal L, Ocak M, Aygun A, ...
Keywords: Octreotide PET
#616 Assessment of DNA Double-Strand Breaks in Blood Lymphocytes after Whole-Body Radiation Exposure in Patients with Neuroendocrine Tumors Undergoing 177Lu-Octreotate Therapy
Introduction: Peptide receptor radionuclide therapy using somatostatin receptor-binding peptides, such as 177Lu-Octreotate (LuTate), has been clinically proven to be effective in treating patients with inoperable neuroendocrine tumors. Despite the rather high radiation exposure, only few side effects have been reported. However, blood cells are very sensitive to radiation. Therefore, it is important to determine how much radiation they received. Recently, the detection by immunofluorescence of the phosphorylation of the histone variant H2AX (γ‐H2AX) has been established as a reliable and sensitive technique to monitor DNA double-strand breaks (DSBs) in blood lymphocytes.
Conference: 10th Annual ENETS Conference (2013)
Category: Basic Science - Genetics, epigenetics, miRNAs
Presenting Author: Dr Delphine Denoyer
#726 Expression and Phosphorilation of mTOR Pathway and Antitumor Activity of mTOR Inhibitors in Neuroendocrine Tumors
Introduction: The mammalian target of rapamycin (mTOR) is a protein kinase involved in the control of cancer cell metabolism, growth and proliferation. The mTOR pathway has attracted broad scientific and clinical interest, particularly in light of the ongoing clinical cancer trials with mTOR inhibitors in pts with neuroendocrine tumors (NETs). To identify the best candidates for treatment with mTOR inhibitors is challenging.
Conference: 10th Annual ENETS Conference (2013)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Concetta Sciammarella
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