Brefeldin A (BFA, REF: 3660755, 10-40nM [24 (link), 32 (link)]), thapsigargin (TG, REF: 3557977, 0.1-100nM [33 (link), 34 (link)]), wortmannin (WORT, REF: W3144, 1µM [35 (link), 36 (link)]) and cytochalasin D (CytD, REF: C2618, 100nM [37 (link), 38 (link)]) were purchased from Sigma-Aldrich (Burlington, Massachusetts, United States). Stock solutions of the compounds were prepared in dimethyl sulfoxide (DMSO; Carl Roth, Karlsruhe, Germany) to enable a 1:1000 dilution for each treatment. Solvent controls were matched to represent the same DMSO content as the treatments. PBS-A was prepared by dissolving 0.4g KH2PO4, 0.4g KCl, 16g NaCl and 5.5g Na2HPO4. 2H2O in 1l autoclaved water and adjusting the pH to 7.2.
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