Abstract library

37 results for "Tumorigenesis".
#2920 Mutation Spectrums Analysis of Colorectal Adenocarcinoma and Neuroendocrine Neoplasm Based on Same Genetic Background to Reveal Tumorigenesis
Introduction: The tumorigenesis of neuroendocrine neoplasm (NEN) are still ambiguous. The therapies of NENs in colon or rectum refer to adenocarcinomas (AC) when tumor metastasis, but the response was unsatisfactory which inspired us to explore the mutation difference.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Genetics, epigenetics, miRNAs, Omics
Presenting Author: Dr. Wen Cai
Authors: Cai W, Ge W, Wu D, Mao J, ...
#1115 Cancer Stem Cells in Small Intestine Neuroendocrine Cell Line P-STS: Isolation and Molecular Characterisation
Introduction: Cancer stem cells (CSCs) represent a small subpopulation of tumour cells responsible for invasive tumour growth. Even though the presence of CSCs in neuroendocrine tumours is documented, their role in neuroendocrine tumourigenesis and metastasis is not defined as yet.
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: Florian Kleinegger
#1772 Expression of Truncated Functional Subtype 5 Somatostatin Receptor Variant (sst5TMD4) in GEP-NETs and Association with Relevant Pathways Involved in NET Tumorigenesis
Introduction: Sst5TMD4, which is derived from a non-canonical splicing process of sst5 receptor, is overexpressed in several endocrine tumors and associated with a worse prognosis.
Conference: 14th Annual ENETS conference 2017 (2017)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr. Angel Diaz Perez
#1320 Are eIFs Ingredients for Neuroendocrine Tumorigenesis?
Introduction: Neuroendocrine tumors (NETs) develop in almost any organ, therefore they are a very heterogeneous group of tumors. One of the major activities in every cell is the translation of mRNA to the corresponding protein, which plays an important role in cancer development. Crucial for this translation process are eukaryotic initiation factors (eIFs), which are themselves regulated by the mammalian target of Rapamycin (mTOR)-pathway. Mutation or deregulated expression of eIFs influences cell growth and proliferation, contributing to carcinogenesis. The incidence of NETs has increased fivefold over the last three decades.
Conference: 13th Annual ENETS conference 2016 (2016)
Category: Basic Science - mTOR and other pathways, signalling, receptors
Presenting Author: MSc. Nadine Gantenbein
#2126 Histone Replacement in Cancer: Dissecting the Role of H3.3 Chaperones in Pancreatic Tumorigenesis
Introduction: Cancer driver mutations affecting the histone H3.3 chromatin remodellers ATRX and DAXX were recently discovered in 43% of sporadic pancreatic neuroendocrine tumours (PNET). Progressive age-dependent replacement of canonical H3.1/2 with H3.3 is crucial for maintaining genome integrity through expression of repressive markers at heterochromatic sites, where loading is mediated by ATRX and DAXX. Loss of H3.3 chaperones in PNET is associated with activation of ALT, a telomere maintenance mechanism, eventually leading to chromosome instability. It has been suggested that ATRX/DAXX expression is necessary for repressing ALT, but mechanistic details of this interaction are not fully understood.
Conference: 15th Annual ENETS conference 2018 (2018)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: PhD Student Teresa Sposito
#3049 Organoid Models of Neuroendocrine Cell Growth and Tumorigenesis
Introduction: A paucity of in vitro and in vivo models has limited the study of Neuroendocrine neoplasms (NENs). Moreover, little is known about normal neuroendocrine (NE) cells and how they contribute to NEN formation.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - In vitro models, tumor growth, CTCs
Presenting Author: PhD Talya Dayton
#453 Activation of Hedgehog Pathway in Neuroendocrine Tumor
Introduction: Neuroendocrine tumors (NETs) are rare tumors and often follow an indolent course, especially the tumors of low-to-intermediate grade. The genetic etiology of sporadic NET is largely unknown. It is well-known that a significant number of patients with NETs may have harbored the slow-growing lesions since very a young age, suggesting it could result from alterations of pathways involved in development. Hedgehog (Hh) signaling has been found to be important in embryonic patterning, stem cell maintenance and tissue repair; and is normally silenced in most mature adult tissue. However, it frequently undergoes gain-of-function mutations or reactivation due to ligand overproduction and has been linked to the etiology of a variety of tumors.
Conference: 9th Annual ENETS Conference (2012)
Category: Basic
Presenting Author: MD Mei Dong
#2707 Investigating the Crosstalk between MEN1, p53 and Notch Reveals Biomarkers of Formation of Primary Pancreatic Neuroendocrine Tumors
Introduction: Pancreatic neuroendocrine tumors (PNETs) comprise a heterogeneous group of endocrine tumors. Previous studies showed that mutations of p53 are extremely rare; whereas genetic changes of MEN1 frequently occur and are correlated with poor prognosis in PNET. Still, their roles in tumorigenesis remain elusive.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Basic Science - Signaling pathways, receptors, biomarkers
Presenting Author: Dr Ylenia Capodanno
#72 Reduced expression of p27 and the occurrence of CpG island methylator phenotype in insulinomas
Introduction: The molecular pathogenesis of sporadic insulinoma is unclear, though some of the genes were found to be slienced by promoter methylation. CpG island methylator phenotype (CIMP) was found in a number of common tumors and correlated with loss of expression of p27, which may contribute to the tumorigenesis of the tumors.
Conference: 7th Annual ENETS Conference (2010)
Category: Basic
Presenting Author: Dr Yuan-Jia Chen
Authors: Chen Y J, Zhou Q, Xiao Y, Zhu Y, ...
#355 MicroRNA Signatures as Novel Biomarkers in Small Intestine Neuroendocrine Tumors
Introduction: Small intestine (SI) neuroendocrine tumors (NET) arise from serotonin-producing intraepithelial cells in the SI referred to as enterochromafin cells. The detection of SI-NETs is often concomitant with the appearance of hepatic metastasis thus most patients with SI-NET have metastases at initial presentation. MicroRNAs (miRs) are post-transcriptional key regulators in tumorigenesis which regulate expression of other genes. Little evidence of miR expression or deregulation in SI-NETs has been reported.
Conference:
Category: Basic
Presenting Author: Su-Chen Li
Authors: Li S C, Ahmed E, Martijn C, Lloyd R, ...