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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Invest New Drugs. 2012 Nov 6;31(3):545–557. doi: 10.1007/s10637-012-9888-5

Fig. 1.

Fig. 1

(A) Structure of withaferin A. (B) U87, U251, and GL26 cells were incubated with increasing concentrations of WA or a DMSO control for 72h and then assessed by MTS assay. WA dose escalation reduced cell proliferation and viability with IC50 values of 1.07±0.071µM, 0.69±0.041µM, and 0.23±0.015µM for U87, U251, and GL26 cells, respectively