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Imhoff, H: The Role of Lipid Rafts in Canine Distemper Virus

von Imhoff, Heidi   (Autor)

Cholesterol is known to play an important role in stabilising particular cellular membrane structures,so-called lipid rafts. For several viruses a dependence on cholesterol for virus entryand/or morphogenesis has been shown. Using flow cytometry and fluorescence microscopy wedemonstrate that Canine distemper virus (CDV) infection of cells was not impaired after cellularcholesterol had been depleted by the drug methyl-beta-cyclodextrin (MbCD). This effect wasindependent of the multiplicity of infection (MOI) and the cellular receptor used for infection.However, cholesterol depletion of the viral envelope significantly reduced CDV infectivity. Replenishmentby addition of exogenous cholesterol restored infectivity up to 80 percent. Thus,we conclude that CDV entry is dependent on cholesterol in the viral envelope. Furthermore, areduced syncytium formation was observed when the cells were cholesterol depleted during thecourse of the infection. This may be related to the observation that the CDV envelope proteinsH and F partitioned into cellular detergent resistant membranes (DRMs). Therefore, a role forlipid rafts during virus assembly and release as well is suggested.

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Produktbeschreibung

Cholesterol is known to play an important role in stabilising particular cellular membrane structures,so-called lipid rafts. For several viruses a dependence on cholesterol for virus entryand/or morphogenesis has been shown. Using flow cytometry and fluorescence microscopy wedemonstrate that Canine distemper virus (CDV) infection of cells was not impaired after cellularcholesterol had been depleted by the drug methyl-beta-cyclodextrin (MbCD). This effect wasindependent of the multiplicity of infection (MOI) and the cellular receptor used for infection.However, cholesterol depletion of the viral envelope significantly reduced CDV infectivity. Replenishmentby addition of exogenous cholesterol restored infectivity up to 80 percent. Thus,we conclude that CDV entry is dependent on cholesterol in the viral envelope. Furthermore, areduced syncytium formation was observed when the cells were cholesterol depleted during thecourse of the infection. This may be related to the observation that the CDV envelope proteinsH and F partitioned into cellular detergent resistant membranes (DRMs). Therefore, a role forlipid rafts during virus assembly and release as well is suggested. 

Autoreninfo

Imhoff, Heidi
Heidi Imhoff was born in 1979 in Bonn, Germany and studied biology at the Technical University, Aachen and at Lundïs University, Sweden. She did a Master thesis in Lund and a Diploma thesis at the Institute of Immunology, Aachen. This work was conducted within the PhD program "Infection Biology" at the University of Veterinary Medicine, Hanover.  

Mehr vom Verlag:

VDM Verlag

Mehr vom Autor:

Imhoff, Heidi

Produktdetails

Medium: Buch
Format: Kartoniert
Seiten: 176
Sprache: Englisch
Erschienen: August 2008
Maße: 220 x 150 mm
Gewicht: 278 g
ISBN-10: 3639046307
ISBN-13: 9783639046304

Bestell-Nr.: 4380959 
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LIBRI-EK*: 46.07 € (27.50%)
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UVP: 2 
Warengruppe: 16790 

KNO: 21366481
KNO-EK*: 44.49 € (30.00%)
KNO-VK: 68,00 €
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KNOABBVERMERK: 2008 176 S. 220 mm
Einband: Kartoniert
Sprache: Englisch
Beilage(n): Paperback

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