Fig. 4From: Krüppel-like factor 4 expression in oral carcinoma cells and hypermethylation at the gene promoterExpression of KLF4 after the demethylation. a Relative fold of KLF4 mRNA expression in cells treated with 5-aza demethylation reagent divided by the expression without 5-aza treatment (n =4). b KLF4 protein expression in cells with (+) and without (−) 5-aza treatment were examined by immunoblot. β-actin was used as an internal controlBack to article page