Matches in SemOpenAlex for { <https://semopenalex.org/work/W113063625> ?p ?o ?g. }
- W113063625 abstract "Around 350 million people worlwide are infected with the hepatitis B virus (HBV) and one million of people per year die because of the consequences of a chronic HBV-infection. The capacity of the HBV to become chronic suggests that this virus is capable to modulate the apoptosis. In the context of the present project, the influence of the HBV-capsid on the cleavage of the Nucleoporin153 (Nup153) by the caspase 3 and the influence of the HBV-core protein on the apoptosis in general have been investigated. In order to address the effect of the capsid on the cleavage of the Nup153 by the caspase 3, in vitro and an in vivo analytical systems have been developed. After the purification of the GST-Nup153, the impact of the HBV-capsid on his cleavage has been analyzed. It has been observed, that the HBV-capsid has no effect on the cleavage of the Nup153. This result has been confirmed by the in vivo system which has been represented by digitonin-permeabilized HeLa cells, in which the Nup153 has also been cleaved in presence or absence of the HBV-capsid. In order to attach the capsids on the Nup153, nuclear transport assays have been realized before the cleavage with the recombinant caspase 3. In the second part, the influence of the hepatitis core protein on the Fas induced apoptosis has been investigated. HepG2 cells have been transfected either with a vector coding for the construction GFP-core or with a control vector coding for the GFP-protein without any fusion. After induction of apoptosis by the ligand IgFasL, the apoptosis has been measured by the analysis of the caspase 3 activity and by the decreasing of the GFP signal. Cells containing GFP-core showed a strong decreasing regarding the amount of apoptosis compared to the cells transfected with GFP. This result suggests an anti-apoptotic function of the core protein of the HBV." @default.
- W113063625 created "2016-06-24" @default.
- W113063625 creator A5072608523 @default.
- W113063625 date "2009-12-18" @default.
- W113063625 modified "2023-09-24" @default.
- W113063625 title "Etude de l'effet de l'interaction entre la nucléoporine 153 et la capside du virus de l'hépatite B" @default.
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