0000000001051062

AUTHOR

Sylvia Herter

showing 2 related works from this author

Cytomegalovirus Encodes a Positive Regulator of Antigen Presentation

2006

ABSTRACT Murine cytomegalovirus encodes three regulators of antigen presentation to antiviral CD8 T cells. According to current paradigms, all three regulators are committed to the inhibition of the presentation of antigenic peptides. Whereas m152/gp40 catalyzes the retention of peptide-loaded major histocompatibility complex (MHC) class I molecules in a cis -Golgi compartment, m06/gp48 binds stably to class I molecules and directs them into the cellular cargo-sorting pathway of lysosomal degradation. Regulator m04/gp34 also binds stably to class I molecules, but unlike m152 and m06, it does not downmodulate MHC class I cell surface expression. It has entered the literature as a direct inhi…

MuromegalovirusImmunologyAntigen presentationRegulatorCD8-Positive T-LymphocytesVirus ReplicationMajor histocompatibility complexMicrobiologyMiceViral ProteinsMuromegalovirusAntigenVirologyMHC class IAnimalsHumansCytotoxic T cellAntigens ViralCells CulturedGlycoproteinsAntigen PresentationMice Inbred BALB CMembrane GlycoproteinsbiologyAntigen processingHistocompatibility Antigens Class IH-2 AntigensFibroblastsEmbryo Mammalianbiology.organism_classificationAdoptive TransferMolecular biologyMice Inbred C57BLInsect ScienceCytomegalovirus Infectionsbiology.proteinPathogenesis and ImmunityFemaleCarrier ProteinsPeptidesT-Lymphocytes CytotoxicJournal of Virology
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Dendritic cell aggresome-like-induced structure formation and delayed antigen presentation coincide in influenza virus-infected dendritic cells.

2005

Abstract Influenza virus infection induces maturation of murine dendritic cells (DCs), which is most important for the initiation of an immune response. However, in contrast to EL-4 and MC57 cells, DCs present viral CTL epitopes with a delay of up to 10 h. This delay in Ag presentation coincides with the up-regulation of MHC class I molecules as well as costimulatory molecules on the cell surface and the accumulation of newly synthesized ubiquitinated proteins in large cytosolic structures, called DC aggresome-like-induced structures (DALIS). These structures were observed previously after LPS-induced maturation of DCs, and it was speculated that they play a role in the regulation of MHC cl…

Time FactorsImmunologyAntigen presentationCellAntigen-Presenting CellsEpitopes T-Lymphocytechemical and pharmacologic phenomenaBone Marrow CellsVirusCell LineMiceImmune systemCell Line TumorMHC class ImedicineImmunology and AllergyAnimalsHumansReceptors ImmunologicCells CulturedAntigen PresentationMice Inbred C3HbiologyUbiquitinViral Core ProteinsRNA-Binding ProteinsCell DifferentiationDendritic cellDendritic CellsNucleocapsid ProteinsVirologyToll-Like Receptor 2Cell biologyNucleoproteinMice Inbred C57BLToll-Like Receptor 4Aggresomemedicine.anatomical_structureNucleoproteinsInfluenza A virusbiology.proteinCytoplasmic StructuresT-Lymphocytes CytotoxicJournal of immunology (Baltimore, Md. : 1950)
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