Figure 3: mRNA expression of tumor suppressor proteins and apoptotic molecules in HeLa cells treated with Oroxylum indicum extract. (a) p53 (b) pRb (c) Fas (d) FasL. Detection of mRNA level was determined by RT-PCR analysis after 24 h. j -actin was used as an internal control. Graph represents the mean relative index for expression level of targeted genes in treated and untreated HeLa cells. The signal density was normalized with j -actin. Values are expressed as mean ± SD from three independent experiments. *P < 0.05 is considered significant.