0000000000560469

AUTHOR

Tobias Morawe

showing 3 related works from this author

Differential regulation of apoptosis-associated genes by estrogen receptor alpha in human neuroblastoma cells

2012

Purpose: The neuroendocrinology of female sex hormones is of great interest for a variety of neuropsychiatric disorders. In fact, estrogens and estrogen receptors (ERs) exert neuromodulatory and neuroprotective functions. Here we investigated potential targets of the ER subtype alpha that may mediate neuroprotection and focused on direct modulators and downstream executors of apoptosis. Methods: We employed subclones of human neuroblastoma cells (SK-N-MC) stably transfected with one of the ER subtypes, ERalpha or ERbeta. Differences between the cell lines regarding the mRNA expression levels were examined by qPCR, changes on protein levels were examined by Western Blot and immunocytochemist…

Cell SurvivalEstrogen receptorApoptosisCaspase 3BiologyNeuroprotectionRats Sprague-DawleyNeuroblastomaDevelopmental NeuroscienceCell Line TumorAnimalsEstrogen Receptor betaHumansGene silencingAdaptor Proteins Signal TransducingNeuronsCaspase 3Estrogen Receptor alphaTransfectionMolecular biologyRatsUp-RegulationDNA-Binding ProteinsProto-Oncogene Proteins c-bcl-2NeurologyCell cultureApoptosisCancer researchNeurology (clinical)Apoptosis Regulatory ProteinsEstrogen receptor alphahormones hormone substitutes and hormone antagonistsTranscription FactorsRestorative Neurology and Neuroscience
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Estrogen receptor α regulates non-canonical autophagy that provides stress resistance to neuroblastoma and breast cancer cells and involves BAG3 func…

2015

AbstractBreast cancer is a heterogeneous disease and approximately 70% of newly diagnosed breast cancers are estrogen receptor (ER) positive. Out of the two ER types, α and β, ERα is the only ER that is detectable by immunohistochemistry in breast cancer biopsies and is the predominant subtype expressed in breast tumor tissue. ER-positive tumors are currently treated with anti-hormone therapy to inhibit ER signaling. It is well known that breast cancer cells can develop endocrine resistance and resistance to anti-hormone therapy and this can be facilitated via the autophagy pathway, but so far the description of a detailed autophagy expression profile of ER-positive cancer cells is missing.…

Cancer ResearchProgrammed cell deathImmunologyEstrogen receptorBreast NeoplasmsBiologyBAG3Cellular and Molecular NeuroscienceNeuroblastomaBreast cancermedicineAutophagyEstrogen Receptor betaHumansPrecision MedicineEstrogen receptor betaPI3K/AKT/mTOR pathwayAdaptor Proteins Signal TransducingEstrogen Replacement TherapyEstrogen Receptor alphaCell Biologymedicine.disease3. Good healthCell biologyGene Expression Regulation NeoplasticCancer cellMCF-7 CellsOriginal ArticleFemaleApoptosis Regulatory ProteinsEstrogen receptor alphaSignal TransductionCell Death & Disease
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BAG3 regulates total MAP1LC3B protein levels through a translational but not transcriptional mechanism

2015

Autophagy is mainly regulated by post-translational and lipid modifications of ATG proteins. In some scenarios, the induction of autophagy is accompanied by increased levels of certain ATG mRNAs such as MAP1LC3B/LC3B, ATG5 or ATG12. However, little is known about the regulation of ATG protein synthesis at the translational level. The cochaperone of the HSP70 system BAG3 (BCL2-associated athanogene 3) has been associated to LC3B lipidation through an unknown mechanism. In the present work, we studied how BAG3 controls autophagy in HeLa and HEK293 cells. Our results showed that BAG3 regulates the basal amount of total cellular LC3B protein by controlling its mRNA translation. This effect was …

0301 basic medicineProteasome Endopeptidase ComplexTranscription GeneticATG8ATG5BiologyBAG3ATG1203 medical and health sciences0302 clinical medicineProtein biosynthesisHumansRNA MessengerMolecular BiologyAdaptor Proteins Signal TransducingGeneticsGene knockdownAutophagyCell BiologyLipidsBasic Research PaperCell biologyHEK293 Cells030104 developmental biologyProtein BiosynthesisProteolysisApoptosis Regulatory ProteinsLysosomesMicrotubule-Associated ProteinsMAP1LC3B030217 neurology & neurosurgeryHeLa Cells
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