Université de Fribourg

In vivo function of the lipid raft protein flotillin-1 during cd8+ t cell–mediated host surveillance

Ficht, Xenia ; Ruef, Nora ; Stolp, Bettina ; Samson, Guerric P. B. ; Moalli, Federica ; Page, Nicolas ; Merkler, Doron ; Nichols, Ben J. ; Diz-Muñoz, Alba ; Legler,, Daniel F. ; Niggli, Verena

In: The Journal of Immunology, 2019, p. -

Flotillin-1 (Flot1) is an evolutionary conserved, ubiquitously expressed lipid raft– associated scaffolding protein. Migration of Flot1-deficient neutrophils is impaired because of a decrease in myosin II–mediated contractility. Flot1 also accumulates in the uropod of polarized T cells, suggesting an analogous role in T cell migration. In this study, we analyzed morphology and migration...

Université de Fribourg

Regulation of global CD8+ T-cell positioning by the actomyosin cytoskeleton

Stein, Jens V. ; Ruef, Nora

In: Immunological Reviews, 2019, vol. 289, no. 1, p. 232–249

CD8+ T cells have evolved as one of the most motile mammalian cell types, designed to continuously scan peptide–major histocompatibility complexes class I on the surfaces of other cells. Chemoattractants and adhesion molecules direct CD8+ T‐cell homing to and migration within secondary lymphoid organs, where these cells colocalize with antigen‐presenting dendritic cells in confined...