Searchable abstracts of presentations at key conferences in endocrinology

ea0063gp100 | Adrenal and Neuroendocrine - Basic | ECE2019

Characterization of cell death induced by mitotane in adrenocortical carcinoma cells

Weigand Isabel , Schreiner Jochen , Rohrig Florian , Kiseljak-Vassiliades Katja , Hofner Kerstin , Kendl Sabine , Fassnacht Martin , Sbiera Silviu , Kroiss Matthias

Background: Mitotane is the only drug approved for treatment of adrenocortical carcinoma (ACC). We have found that mitotane leads to endoplasmic reticulum stress and decreased viability in ACC cells. It is not known by which downstream mechanisms cell death is induced by mitotane.Aim: To characterize the mechanisms underlying cell death resulting from mitotane treatment in ACC cells.Methods: Lipid peroxidation in the ACC cell line ...

ea0049gp22 | Adrenal 3 | ECE2017

Epithelial to mesenchymal transition in adrenocortical tumours: focus on FGF-FGFR pathway and c-MET

Sbiera Iuliu , Altieri Barbara , Feuchtinger Annette , Hofner Kerstin , Walch Axel , Fassnacht Martin , Ronchi Cristina L , Kroiss Matthias , Sbiera Silviu

Ad Adrenocortical carcinoma (ACC) is an aggressive tumour and treatment remains unsatisfactory in advanced disease. Activation of epithelial to mesenchymal transition (EMT) is considered causative for metastatic spread in a variety of human cancers. Accordingly, new drugs were developed specifically targeting EMT with a focus on hepatocyte growth factor (HGF)/HGF receptor (c-MET) and fibroblast growth factor (FGF)/FGF receptor (FGFR) signalling.We here a...

ea0056oc5.3 | Diving deep into adrenal cortex diseases | ECE2018

PRKACA L206R mutation in adrenal Cushing’s syndrome makes PKA RIIβ susceptible for caspase-mediated cleavage

Weigand Isabel , Ronchi Cristina L. , Hofner Kerstin , Vanselow Jens T. , Herterich Sabine , Bathon Kerstin , Schlosser Andreas , Fassnacht Martin , Calebiro Davide

Protein Kinase A (PKA) consists of two catalytic and two regulatory subunits with several isoforms (Cα, β, γ and RIα, IIα, Iβ, IIβ, respectively). Type II regulatory subunits are phosphorylated by PKA in their inhibitory sites, while type I are not. Somatic activating mutations in the gene encoding the catalytic subunit α (Cα) of PKA (PRKACA) have been found in 30–40% of cortisol-producing adrenocortical adenomas (CPA). We rece...

ea0056p134 | Endocrine tumours and neoplasia | ECE2018

Mesenchymal tissue markers as potential drug targets in adrenocortical tumours

Sbiera Iuliu , Altieri Barbara , Feuchtinger Annette , Kircher Stefan , Hofner Kerstin , Walch Axel Karl , Fassnacht Martin , Ronchi Cristina L , Kroiss Matthias , Sbiera Silviu

Introduction: Adrenocortical carcinoma (ACC) is a rare, aggressive tumour with unsatisfactory treatment options in advanced disease. Activation of epithelial to mesenchymal transition (EMT) has been described as causative of metastatic spread in a variety of human cancers. Accordingly, new drugs were developed specifically targeting EMT with a focus on HGF/c-MET and FGF/FGFR signalling. We here asked whether EMT is a relevant mechanism in ACC.Methods: Ex...