NSCLC cells (105 cells/well) were cultured with increasing concentrations of fresh oilenriched
medium for up to 48 h, or were transfected with control or AP-2α siRNA for 30 h
before exposure of the cells to fresh oil-enriched medium for an additional 48 h in 96-well
plates. In a separate experiment, cells were transfected with inactive (ILK-S343A) or
superactive ILK (ILKS-343D) cDNA, or with control or AP-2 expression reporter construct
SP (RSV)AP-2 (#12100) (purchased from Addgene, Inc.; Cambridge, MA) (17) using the
oligofectamine reagent (Invitrogen) according to the manufacturer’s instructions. After 24 h
of incubation, cells were treated with or without fresh oil-enriched medium for 48 h.
Afterwards, the number of viable cells in culture was determined using the CellTiter-Glo
Luminescent Cell Viability Assay kit, which is based on quantitation of the ATP present
according to the manufacturer’s instructions (Promega).