For the generation of the cell spheroids, cells were seeded into 96-well round-bottom ultra-low attachment plates (Corning) at 2000 viable cells per well. HepG2/LX-2 24:1 spheroids were grown in minimum essential medium (MEM) supplemented as previously described [17 (link)]. The volume of spheroids was determined using the following formula: 4/3 π r3, where “r” is the mean of the long diameter and short diameter of the spheroid divided by two.
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