[HTML][HTML] GD3 glycosphingolipid contributes to Fas-mediated apoptosis via association with ezrin cytoskeletal protein

AM Giammarioli, T Garofalo, M Sorice, R Misasi… - FEBS letters, 2001 - Elsevier
AM Giammarioli, T Garofalo, M Sorice, R Misasi, L Gambardella, R Gradini, S Fais, A Pavan…
FEBS letters, 2001Elsevier
Efficiency of Fas-mediated apoptosis of lymphoid cells is regulated, among other means, by
a mechanism involving its association with ezrin, a cytoskeletal protein belonging to the 4.1
family of proteins. In the present work, we provide evidence for a further molecule that
associates to ezrin in Fas-triggered apoptosis, the disialoganglioside GD3. In fact, as an
early event, GD3 redistributed in membrane-associated domains in uropods and co-
localized with ezrin. Co-immunoprecipitation analyses confirmed this result, indicating a …
Efficiency of Fas-mediated apoptosis of lymphoid cells is regulated, among other means, by a mechanism involving its association with ezrin, a cytoskeletal protein belonging to the 4.1 family of proteins. In the present work, we provide evidence for a further molecule that associates to ezrin in Fas-triggered apoptosis, the disialoganglioside GD3. In fact, as an early event, GD3 redistributed in membrane-associated domains in uropods and co-localized with ezrin. Co-immunoprecipitation analyses confirmed this result, indicating a GD3–ezrin association. Altogether, these results are suggestive for a role of GD3 in Fas/ezrin-mediated apoptosis, supporting the view that uropods contain a multimolecular signaling complex involved in Fas-mediated apoptosis.
Elsevier