0000000000354207

AUTHOR

Frank Hermann

showing 2 related works from this author

Dominant negative MORT1/FADD rescues mice from CD95 and TNF-induced liver failure

2002

Derangement of the apoptotic program is considered an important cause of liver disease. It became clear that receptor-mediated apoptosis is of specific interest in this context, and CD95 and CD120a, both members of the tumor necrosis factor (TNF) receptor superfamily, are the most prominent cell death receptors involved. The death signal is induced upon ligand binding by recruitment of caspases via the adapter molecule MORT1/FADD to the receptor and their subsequent activation. To investigate the role of MORT1/FADD in hepatocyte apoptosis, we generated transgenic mice expressing liver-specific dominant negative mutant. Mice looked grossly normal; breeding and liver development were not diff…

Lipopolysaccharidesmedicine.medical_specialtyProgrammed cell deathFas-Associated Death Domain ProteinOligonucleotidesMice TransgenicAntibodiesReceptors Tumor Necrosis FactorMiceLiver diseaseAntigens CDAlbuminsInternal medicinemedicineAnimalsfas ReceptorFADDPromoter Regions GeneticAdaptor Proteins Signal TransducingLiver injuryHepatitisMice Inbred BALB CHepatologybiologyTumor Necrosis Factor-alphamedicine.diseaseFas receptorMice Inbred C57BLEndocrinologyReceptors Tumor Necrosis Factor Type IApoptosisCaspasesbiology.proteinTumor necrosis factor alphaCarrier ProteinsLiver FailureHepatology
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HSP60 and CpG-DNA-oligonucleotides differentially regulate LPS-tolerance of hepatic Kupffer cells

2004

Background/aims: Hepatic Kupffer cells (KC) are major regulators of the immune response to gut-derived bacterial products; uncontrolled activation of KC by bacterial components is of pathogenic relevance in alcoholic hepatitis and septic shock. Methods: We examined the role of bacterial lipopolysaccharide (LPS), bacterial and autologous HSP60 and bacterial DNA, which are recognized by innate Toll-like receptors, during activation of murine KC. Results: In cultivated KC, autologous HSP60 induced a state of LPS-hyporesponsiveness; bacterial DNA did not mitigate the response to subsequent LPS-challenge in vitro; in contrast, pre-treatment of mice with bacterial DNA even significantly increased…

LipopolysaccharidesMaleLipopolysaccharideKupffer CellsImmunologyGene ExpressionGalactosamineReceptors Cell SurfaceCell LineMicrobiologyMicechemistry.chemical_compoundImmune systemImmunityHeat shock proteinAnimalsImmunology and AllergyInterleukin 6Cells CulturedbiologyInterleukin-6Reverse Transcriptase Polymerase Chain ReactionTumor Necrosis Factor-alphaAlanine TransaminaseChaperonin 60Macrophage ActivationToll-Like Receptor 9DNA-Binding ProteinsToll-Like Receptor 4LiverOligodeoxyribonucleotideschemistryToll-Like Receptor 9Immunologybiology.proteinFemaleHSP60Tumor necrosis factor alphaLiver FailureImmunology Letters
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