Fig. 2From: Selecting suitable reference genes for qPCR normalization: a comprehensive analysis in MCF-7 breast cancer cell lineRelative change of expression of the candidate genes (a) RNA18S (b) PUM1 (c) CCSER2 (d) HNRNPL (e) PCBP1 and (f) SF3A1 over successive passages in both cultures A1 and A2. The expression change was measured as 2-Cq with the experimental calibrators marked as gray boxplots (p28 in culture A1 and p25 in culture A2)Back to article page