Fig. 2

High expression of HDAC1 to HDAC4 and low acetylation level in TNBC cell lines. A) HDAC1, HDAC2, HDAC3 and HDAC4 expression on mRNA level in TNBC cell lines HCC38, HCC1395 and HCC1937 compared to the non-tumorigenic breast cell line MCF12A. B) Histone acetylation of HCC38, HCC1937 and HCC1395 compared to the non-tumorigenic breast cell line MCF12A. The results were normalized to cell viability measured by WST-1 assay. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001, 1-way ANOVA / Dunnett’s multiple comparison test