Huh7 cells that had been transfected with either CA-STAT3 or pCDNA3.2/V5-DEST were subsequently maintained in a growth medium containing 500 μg/mL of G418 disulfate (Roche Molecular Biochemicals, Indianapolis, IN, USA). Isolated resistance colonies were pooled and used as recombinant cells. Ectopic expression of CA-STAT3 was verified by Flag immunoblotting.
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