6533b855fe1ef96bd12b1319
RESEARCH PRODUCT
The new murine hepatic 3A cell line responds to stress stimuli by activating an efficient Unfolded Protein Response (UPR)
Yula SambuyDiana BellovinoBarbara GuantarioLaura AmiconeAlice Conigliarosubject
Hepatocytes; ER stress; RBP4BiologyToxicologyCellular modelCell LineMicechemistry.chemical_compoundStress PhysiologicalExtracellularAnimalsHepatocyteSecretionActinbeta CateninAnimalReverse Transcriptase Polymerase Chain ReactionRBP4Gene Expression ProfilingTunicamycinDays post coitumCellular model; ER stress; Hepatocytes; RBP4; Actins; Animals; Cell Line; Fluorescein; Gene Expression Profiling; Glycogen; Liver; Retinol-Binding Proteins Plasma; Reverse Transcriptase Polymerase Chain Reaction; Stress Physiological; Tunicamycin; Unfolded Protein Response; beta Catenin; Mice; ToxicologyGeneral MedicineTunicamycinMolecular biologyActinsLiverchemistryCell cultureUnfolded Protein ResponseUnfolded protein responseER streFluoresceinLiver functionCellular modelRetinol-Binding Proteins PlasmaGlycogendescription
In the present study we have investigated the properties of a novel cell line (3A cells) obtained from the liver of 14.5. days post coitum (dpc) wild-type mouse embryo. 3A cells morphology was characterized by fluorescent localization of F-actin and β-catenin. The expression of specific genes and proteins essential to liver function in these cells was comparable or even more efficient then in the differentiated hepatocytic cell line MMH-D6. 3A cells also showed the capability to excrete molecules in extracellular spaces resembling functional bile canaliculi, glycogen storage activity and the ability to control retinol-binding protein 4 secretion in response to retinol deprivation. Their response to the exogenous stress stimulus induced by tunicamycin was analysed by PCR Pathway Array containing 84 genes involved in the Unfolded Protein Response (UPR). 3A cells were shown to activate the UPR following a typical stressful event, indicating that this cellular model could be further exploited to investigate hepatic proteins secretion and specific reaction to different injuries.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 | Toxicology in Vitro |