(A and B) The expression of individual components of the MSL complex in HCT116 cells left untreated or treated with 40 μM cisplatin for 8 h as measured by (A) qRT-PCR and (B) immunoblots (nuclear lysates). Only the full-length mRNA isoform expression is shown for MSL1 in (A). TBP, loading control. Similar immunoblot results were obtained with total cell lysates.
(C and D) The results of apoptosis assay (40 μM cisplatin) in HCT116 cells with siRNA-mediated knockdown of individual components of the MSL complex from 2 separate sets of 3 independent experiments. The dashed line indicates the percentage of apoptotic cells from the control siRNA group with cisplatin treatment. In all panels, error bars indicate SEM and statistical significance is determined by one-tailed t test. *p < 0.05; **p<0.01.