Fig. 2.
Effects of chronic arsenite exposure on TfR expression. Western blotting analysis was performed on cellular lysates prepared from the parental HOS, As-8w-HOS, and As-T-HOS cells using specific TfR and β-tubulin antibodies (A). The densities of TfR and β-tubulin signals were analyzed by the UN-SCAN-IT software version 4.1 (Silk Scientific Corp. Orem, UT) and the ratio of TfR/β-tubulin was calculated (B). Data represent the means ± SE from three independent experiments. *Significantly different from parental HOS cells (P < 0.05).