Search results for "virus trafficking"

showing 2 items of 2 documents

Rab33B Controls Hepatitis B Virus Assembly by Regulating Core Membrane Association and Nucleocapsid Processing

2017

Many viruses take advantage of cellular trafficking machineries to assemble and release new infectious particles. Using RNA interference (RNAi), we demonstrate that the Golgi/autophagosome-associated Rab33B is required for hepatitis B virus (HBV) propagation in hepatoma cell lines. While Rab33B is dispensable for the secretion of HBV subviral envelope particles, its knockdown reduced the virus yield to 20% and inhibited nucleocapsid (NC) formation and/or NC trafficking. The overexpression of a GDP-restricted Rab33B mutant phenocopied the effect of deficit Rab33B, indicating that Rab33B-specific effector proteins may be involved. Moreover, we found that HBV replication enhanced Rab33B expres…

0301 basic medicineHepatitis B virusBiologymedicine.disease_causeVirusArticleCell LineCell membraneRab33B03 medical and health sciencesnucleocapsid assemblyTranscription (biology)RNA interferenceVirologymedicineHumansSecretionNucleocapsidcore/capsid membrane associationHepatitis B virus030102 biochemistry & molecular biologyEffectorVirus AssemblyCell MembraneVirologyHepatitis B Core Antigenshepatitis B virus; Rab GTPase; Rab33B; core/capsid membrane association; nucleocapsid assembly; virus traffickingTransport proteinProtein Transport030104 developmental biologyInfectious Diseasesmedicine.anatomical_structurevirus traffickingrab GTP-Binding ProteinsHost-Pathogen InteractionsHepatocytesRab GTPaseViruses; Volume 9; Issue 6; Pages: 157
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Host Cell Rab GTPases in Hepatitis B Virus Infection

2018

Hepatitis B virus (HBV) is a leading cause of liver disease and is presently estimated to infect more than 250 million humans. The extremely successful spread of this virus among the human population is explained by its effective transmission strategies and its manifold particle types, including virions, empty envelopes and naked capsids. Due to its tiny genome, HBV depends on cellular machineries to thrive in infected hepatocytes. To enter, traverse and exit the cell, HBV exploits host membrane trafficking pathways, including intracellular highways directed by Rab GTPases. Here, we review recent discoveries focused on how HBV co-opts and perturbs host Rab GTPase functions with an emphasis …

0301 basic medicineautophagyPopulationvirus assemblyReviewGTPaseBiologymedicine.disease_causeVirusRab33BCell and Developmental Biology03 medical and health sciencesViral life cyclemedicineHBVeducationlcsh:QH301-705.5Hepatitis B viruseducation.field_of_studyRab effector030102 biochemistry & molecular biologyEffectorCell BiologyRab7ARab GAPCell biology030104 developmental biologyRAB7Avirus traffickinglcsh:Biology (General)RabDevelopmental BiologyFrontiers in Cell and Developmental Biology
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