Figure 5.
Cladribine inactivates STAT3 in MM cells in a dose-dependent manner. U266 (A), RPMI8226 (B), and MM1.S (C) cells untreated or treated with indicated concentrations of cladribine for 24 hrs collected and subjected to western blot analyses with specific antibodies directed against P-STAT3, STAT3, or β-actin.