Hugel, B; Martínez, M C; Kunzelmann, C; Blättler, T; Aguzzi, A; Freyssinet, J M (2004). Modulation of signal transduction through the cellular prion protein is linked to its incorporation in lipid rafts. Cellular and Molecular Life Sciences, 61(23):2998-3007.
Full text not available from this repository.
View at publisher
Because expressed at a significant level at the membrane of human T cells, we made the hypothesis that the cellular prion protein (PrPc) could behave as a receptor, and be responsible for signal transduction. PrPc engagement by specific antibodies was observed to induce an increase in cytosolic calcium concentration and led to enhanced activity of Src protein tyrosine kinases. Antibodies to CD4 and CD59 did not influence calcium fluxes or signaling. The effect was maximal after the formation of a network involving avidin and biotinylated antibody to PrPc and was inhibited after raft disruption. PrPc localization was not restricted to rafts in resting cells but engagement was a prerequisite for signaling induction, with concomitant PrPc recruitment into rafts. These results suggest a role for PrPc in signaling pathways, and show that lateral redistribution of the protein into rafts is important for subsequent signal transduction.
|Item Type:||Journal Article, refereed|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology|
|Dewey Decimal Classification:||570 Life sciences; biology
610 Medicine & health
|Date:||1 December 2004|
|Deposited On:||11 Feb 2008 12:26|
|Last Modified:||05 Apr 2016 12:21|
Users (please log in): suggest update or correction for this item
Repository Staff Only: item control page