Analyses of RARα expression in D⁺ cells treated for 24 hours with ATRA, G-CSF, or their combination.

(A) Western blot. Loading was standardized by equal cell numbers. Coomassie staining of a duplicate gel shows approximately equal amounts of protein in each lane. (B) Northern blot. Ethidium bromide staining of the gel shows approximately equal loading. C indicates untreated control; G, G-CSF (10 ng/mL); R, ATRA (3 μmol/L); GR, combination of G-CSF and ATRA.