0000000000595721

AUTHOR

Claudius Witzler

showing 3 related works from this author

Investigating the Vascular Toxicity Outcomes of the Irreversible Proteasome Inhibitor Carfilzomib

2020

Background: Carfilzomib&rsquo

Male0301 basic medicinevasculature030204 cardiovascular system & hematologyPharmacologyDinoprostEndoplasmic Reticulumlcsh:ChemistryMicechemistry.chemical_compound0302 clinical medicineAMP-Activated Protein Kinase Kinasesvascular smooth muscle cellsCytotoxicitylcsh:QH301-705.5endoplasmatic-reticulum stressSpectroscopychemistry.chemical_classificationcarfilzomibCobaltGeneral MedicineMetforminComputer Science ApplicationsRespiratory burstMetforminDrug Therapy CombinationGlycolysisOligopeptidesProteasome Inhibitorsmedicine.drugProteasome Endopeptidase ComplexautophagyCell SurvivalMyocytes Smooth MuscleAntineoplastic AgentsNitric OxideArticleCatalysisInorganic Chemistry03 medical and health sciencesmedicineAnimalsHumansPhysical and Theoretical ChemistryMolecular BiologyReactive oxygen speciesbusiness.industryOrganic ChemistryAutophagyCarfilzomibActinsVasoprotectiveMice Inbred C57BLGlucose030104 developmental biologychemistrylcsh:Biology (General)lcsh:QD1-999Proteasome inhibitorTumor Suppressor Protein p53Reactive Oxygen SpeciesbusinessProtein KinasesInternational Journal of Molecular Sciences
researchProduct

Metabolic and inflammatory reprogramming of macrophages by ONC201 translates in a pro-inflammatory environment even in presence of glioblastoma cells

2020

Tumor-associated macrophages facilitate tumor progression and resistance to therapy. Their capacity for metabolic and inflammatory reprogramming represents an attractive therapeutic target. ONC201/TIC10 is an anticancer molecule that antagonizes the dopamine receptor D2 and affects mitochondria integrity in tumor cells. We examined whether ONC201 induces a metabolic and pro-inflammatory switch in primary human monocyte-derived macrophages that reactivates their antitumor activities, thus enhancing the onco-toxicity of ONC201. Contrary to glioblastoma cells, macrophages exhibited a low ratio of dopamine receptors D2/D5 gene expression and were resistant to ONC201 cytotoxicity. Macrophages re…

0301 basic medicinePyridinesImmunology610 MedizinGlutamic AcidAntineoplastic AgentsMitochondrionBiology570 Life sciences03 medical and health sciences0302 clinical medicineImmune systemCell Line TumorDopamine receptor D2610 Medical sciencesTumor MicroenvironmentHumansImmunology and AllergyMacrophageReceptors Dopamine D5Tumor microenvironmentReceptors Dopamine D2MacrophagesImidazolesMitochondriaCell biologyGene Expression Regulation NeoplasticPyrimidines030104 developmental biologyDrug Resistance NeoplasmTumor progressionDopamine receptorEnergy MetabolismGlioblastomaReprogrammingTranscription Factor CHOPSignal Transduction030215 immunology570 Biowissenschaften
researchProduct

Synergistic Effect of Carfilzomib and Metformin in Vascular Plasticity; The Emerging Role of Autophagy

2019

Introduction: Carfilzomib (Cfz) correlates with a risk of reversible cardiotoxicity in 5-10% of multiple myeloma (MM) patients. We have recently shown that metformin (Met) has a prophylactic role against the Cfz-induced cardiotoxicity in vivo, through activation of AMPKα signaling (Blood 2019;133:710-23). However, the impact of Cfz on vascular function is obscure. Therefore, we sought to investigate: i) the acute, ii) the sub-chronic effect of Cfz on the vascular reactivity, iii) the effect of metformin co-administration on the vascular phenotype and iv) the impact of Cfz and Met co-administration on aged Human Aortic Smooth Muscle Cells (HAoSMCs). Methods: Forty male C57Bl/6 mice were assi…

CardiotoxicityMulticatalytic endopeptidase complexbusiness.industryMTOR Serine-Threonine KinasesImmunologyAutophagyCell BiologyHematologyBiochemistryCarfilzomibAngiotensin IIMetforminchemistry.chemical_compoundchemistryAnimals laboratoryCancer researchmedicinebusinessmedicine.drugBlood
researchProduct