Figure 2.
Drug induced expression levels of global RASSF1 transcripts and A isoform of RASSF1 gene in breast cancer cell lines. (A) Expression levels in untreated cell lines and after treatment with trichostatin A (TSA). Only two cell lines, Hs 578T and MDA-MB-415, expressed the A isoform of RASSF1 gene. As expected, the TSA treatment alone did not affect DNA methylation and as a result the expression levels of this isoform. (B) The treatment with 5-Aza-dC, isolated or combined with TSA, resulted in the reactivation of A isoform of RASSF1 gene. Gene expression levels were normalized to GAPDH gene. Error bars indicate standard deviation from duplicates.