Université de Fribourg

The atypical kinase RIOK1 promotes tumor growth and invasive behavior

Weinberg, Florian ; Reischmann, Nadine ; Fauth, Lisa ; Taromi, Sanaz ; Mastroianni, Justin ; Köhler, Martin ; Halbach, Sebastian ; Becker, Andrea C. ; Deng, Niantao ; Schmitz, Tatjana ; Uhl, Franziska Maria ; Herbener, Nicola ; Riedel, Bianca ; Beier, Fabian ; Swarbrick, Alexander ; Lassmann, Silke ; Dengjel, Jörn ; Zeiser, Robert ; Brummer, Tilman

In: EBioMedicine, 2017, vol. 20, p. 79–97

Despite being overexpressed in different tumor entities, RIO kinases are hardly characterized in mammalian cells. We investigated the role of these atypical kinases in different cancer cells. Using isogenic colon-, breast- and lung cancer cell lines, we demonstrate that knockdown of RIOK1, but not of RIOK2 or RIOK3, strongly impairs proliferation and invasiveness in conventional and 3D...

Université de Fribourg

Phospho-proteomic analyses of B-Raf protein complexes reveal new regulatory principles

Eisenhardt, Anja E. ; Sprenger, Adrian ; Röring, Michael ; Herr, Ricarda ; Weinberg, Florian ; Köhler, Martin ; Braun, Sandra ; Orth, Joachim ; Diedrich, Britta ; Lanner, Ulrike ; Tscherwinski, Natalja ; Schuster, Simon ; Dumaz, Nicolas ; Schmidt, Enrico ; Baumeister, Ralf ; Schlosser, Andreas ; Dengjel, Jörn ; Brummer, Tilman

In: Oncotarget, 2016, vol. 7, no. 18, p. 26628–26652

B-Raf represents a critical physiological regulator of the Ras/RAF/MEK/ERK-pathway and a pharmacological target of growing clinical relevance, in particular in oncology. To understand how B-Raf itself is regulated, we combined mass spectrometry with genetic approaches to map its interactome in MCF-10A cells as well as in B-Raf deficient murine embryonic fibroblasts (MEFs) and B-Raf/Raf-1...