fig3
Figure 3. Effect of 48-h treatment with 1 mM pentoxifylline on the expression levels of total and phosphorylated STAT3, determined by Western Blot on (A) NCI-H460 vs. NCI-H460/R and (B) A549 vs. A549-CDR2 cell lines. The effect of the vehicle (H2O) was also analyzed. β-Actin was used as a loading control. Data are presented as a percentage of expression. *P ≤ 0.05. STAT3: signal transducer and activator of transcription 3.
