Fig 1.

Tetrandrine (Tet) inhibits human RCC proliferation A. The chemical structure of Tet. The OD value and inhibition rate of Tet on viability of RCC 786-O (B, C) and 769-P (D, E) cells. Cells under 90% cell density were treated with the vehicle control or Tet at the indicated concentrations for 24h. The dynamic OD value was assayed at the concentration of 0.5 μM (F). All the cell viability was detected by modified MTT assay. The values were showed as mean±S.E. The experiment was performed in triplicate.