(c) identify biomarkers predictive of tissue exposure and possibly response. Some of the agents under active investigation in the Singh laboratory include: cruciferous vegetable-derived isothiocyanates, garlic-derived organosulides, and medicinal plant constituent withaferin A. As an example, recent published work from the Singh laboratory indicates suppression of glycolysis in mammary cancer prevention by withaferin A in a transgenic mouse model (JNCI, In Press, 2013). Likewise, complementary cellular and molecular biological, targeted proteomics, and molecular modeling techniques were used to identify beta-tubulin as a novel target of cancer cell growth arrest by withaferin A (WA).