Time-dependent inhibition of Stat3 phosphorylation and down-regulated Stat3-mediated antiapoptotic proteins by CDDO-Me. Parental cells KHOS, U-2OS (A) and MDR cells KHOSR2, U-2OSTR (B) were treated for 24 h with CDDO-Me (1 μM), and then harvested and processed for Western blotting. For Western blot analysis, 30 μg of total cellular proteins were subjected to immunoblotting with specific antibodies.
Ryu et al. BMC Cancer 2010 10:187 doi:10.1186/1471-2407-10-187