previously described.(
2015
control fibroblasts were cultured in DMEM-F12 medium with 5% FBS under standard
conditions. For ciliation experiments, cells were serum starved for 24 hours.
Primary Antibodies used: Golgi marker GM130 (mouse, ab169276, Abcam, USA), Golgi
marker 58K (ab27043 mouse, Abcam, USA), early endosome marker EEA1 (1G11
ab70521, mouse monoclonal, Abcam), PPP1R21 antibody (rabbit, HHPA036792 (ab1)
and HPA 036791 (ab2), Atlas antibodies, Sweden), acetylated tubulin (mouse
monoclonal 6-11-B1, Sigma, USA). In brief, cells were grown on coverslips,
washed with PBS and fixed 5 minutes in 5% PFA. After 3 washes, cells were
permeabilized using 0.1% Triton for 3 minutes, washed 3 times and the incubated
in 5% BSA for 1 hour at RT to bock unspecific reactions. Incubation in primary
antibodies was then performed for 1 hour (1:200 in 5% BSA), after 5 washes,
cells were incubated in corresponding fluorescence tagged secondary 1:1000
antibody dilutions for 30 minutes, washed 5 times in PBS and then mounted in
Vectashield with DAPI. mages were taken with a Zeiss Apotome Axiovert 200 and
processed with AxioVision 4.8 and Fiji software.