0000000001262899

AUTHOR

Elina Siljamäki

showing 2 related works from this author

Cholesterol Dependence of Collagen and Echovirus 1 Trafficking along the Novel α2β1 Integrin Internalization Pathway

2013

We have previously shown that soluble collagen and a human pathogen, echovirus 1 (EV1) cluster α2β1 integrin on the plasma membrane and cause their internalization into cytoplasmic endosomes. Here we show that cholesterol plays a major role not only in the uptake of α2β1 integrin and its ligands but also in the formation of α2 integrin-specific multivesicular bodies (α2-MVBs) and virus infection. EV1 infection and α2β1 integrin internalization were totally halted by low amounts of the cholesterol-aggregating drugs filipin or nystatin. Inhibition of cholesterol synthesis and accumulation of lanosterol after ketoconazole treatment inhibited uptake of collagen, virus and clustered integrin, an…

IntegrinsNystatinFluorescent Antibody TechniqueBiochemistryCollagen receptorchemistry.chemical_compoundBINDINGMolecular Cell BiologyInternalizationLipid raftREQUIRESmedia_common0303 health sciencesMicroscopy ConfocalMultidisciplinarybiologyQRIMMUNODEFICIENCY-VIRUS TYPE-1RNA REPLICATIONCellular StructuresExtracellular MatrixEnterovirus B Human3. Good healthCell biologyProtein TransportCholesterolENTRYCytochemistryMedicineMembranes and Sortinglipids (amino acids peptides and proteins)CollagenIntegrin alpha2beta1Research ArticleSignal TransductionViral EntryEndosomeSciencemedia_common.quotation_subjecteducationIntegrinLOW-DENSITY-LIPOPROTEINMicrobiologyFilipinClathrinGPI-ANCHORED PROTEINS03 medical and health sciencesVirologyCell Line TumorCell AdhesionHumansFilipinBiology030304 developmental biology030306 microbiologyCell MembraneVirus Uncoatingta1182TRANSPORTLIPID RAFTSMicroscopy ElectronSubcellular Organelleschemistrybiology.protein3111 BiomedicineChromatography Thin LayerCELL-MEMBRANESViral Transmission and InfectionPLoS ONE
researchProduct

Cholesterol Dependence of Collagen and Echovirus 1 Trafficking along the Novel alpha2beta1 Integrin Internalization Pathway

2013

We have previously shown that soluble collagen and a human pathogen, echovirus 1 (EV1) cluster α2β1 integrin on the plasma membrane and cause their internalization into cytoplasmic endosomes. Here we show that cholesterol plays a major role not only in the uptake of α2β1 integrin and its ligands but also in the formation of α2 integrin-specific multivesicular bodies (α2-MVBs) and virus infection. EV1 infection and α2β1 integrin internalization were totally halted by low amounts of the cholesterol-aggregating drugs filipin or nystatin. Inhibition of cholesterol synthesis and accumulation of lanosterol after ketoconazole treatment inhibited uptake of collagen, virus and clustered integrin, an…

echovirus 1integrinkolesterolilipids (amino acids peptides and proteins)integriini
researchProduct