Fig. 7.
Effects of ATRA on the levels of IRF1 and OAS mRNAs in NB4 cells. NB4 cells (4 × 105/mL) were treated for the indicated lengths of time with 10−6 mol/L ATRA. Total RNA was isolated and subjected (20 μg/lane) to Northern blot analysis. Filters were sequentially hybridized with cDNA probes coding for IRF1 and β-actin or OAS and β-actin. A Northern blot representative of two independent experiments is shown.
