Anti tgn46

Immunofluorescence studies were carried out as previously described [24] (link). Briefly, cells grown overnight on 24-well cover glasses (Menzel, 12 mm) were treated with Cy2/Cy3-labeled MOA in FCS-containing medium and fixed in 4% paraformaldehyde (PFA) at 4 °C for 10 min. Cells were washed and incubated with NH₄Cl at room temperature for 15 min before being permeabilized with PBS containing 0.02% saponin and 0.2% bovine serum albumin (BSA). Cells were stained with either anti-EEA1 (1:50, BD Transduction Laboratories), anti-Calnexin (1:100, Enzo Life Science), anti-CTR 433 (1:100, kind gift of Michel Bornens, Curie Institut), anti-Giantin (1:100, Abcam), anti-TGN46 (1:100, Sigma Aldrich), anti-Transferrin receptor (TfR, 1:100, Life Technologies), anti-Rab11 (1:100, Cell Signaling), anti-Lamp1 (1:200, BD PharMingen), anti-Rab7 (1:100, Santa Cruz Biotech) or anti-β1 integrin (1:100, R&D Systems) antibodies diluted in permeabilization buffer, followed by either donkey anti-mouse Cy3-labeled secondary antibody (1:100, Jackson ImmunoResearch), donkey anti-rabbit Cy3-labeled secondary antibody (1:100, Jackson ImmunoResearch) or donkey anti-goat Cy3-labeled secondary antibody (1:100, Jackson ImmunoResearch) diluted in permeabilization buffer. Nuclei were stained using DAPI (300 nM, Life Technologies).