For time-lapse imaging experiments, 6 X 105 X1(FS) cells were pre-loaded in the center of a PDL-coated MatTek dish with 100 μL medium for 30 min and then added in either 5 mL of the indicated culture medium per well of 6 cm dishes (MatTek, P35G-1.5-14-C) or 1 mL of the indicated culture medium per well of 24-well plates (MatTek, P24G-1.5-13-F).
For transfection experiments, if not specified, 2 × 105 bulk cells, sorted live cells, or SiRNeoblasts were cultured in 96-well plates with 225 μL medium (with or without supplements) per well. Supplements containing 100 X MEM Vitamin Solution (Gibco, 11120-052), 100 X MEM Non-Essential Amino Acid (Gibco, 11140-050), 100 mM Sodium Pyruvate (Gibco, 11360-070), and Penicillin Streptomycin (Gibco, 15140-122) were added to the basal medium at the 1:100 dilution.