Knockdown (KD) of gene expression was performed using small interfering RNA (siRNA). After seeding the cells, transfection was performed using Lipofectamine RNAiMax (Invitrogen, CA, USA) transfection agent according to the manufacturer’s instructions with siRNA constructs and scrambled siRNAs. SMARCA4 siRNA (ID numbers 4677; 5′-GCAUUUCAAGGAAUAUCACtt-3′) and Silencer Negative Control siRNA (AM4611) were purchased from Thermo Fisher Scientific. SMARCA4 siRNA and scrambled siRNA were used at a 10 nM concentration for 48 h in a growth medium.
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