Voreloxin (SNS-595) is a potent Topoisomerase II inhibitor with broad-spectrum anti-tumor activity. Phase 2.

Suprofen inactivates the diclofenac-4-hydroxylase activity of baculovirus-expressed P450 2C9 in a time- and concentration-dependent manner, which is consistent with mechanism-based inactivation. [1] Suprofen is a known generator of singlet oxygen whose participation in the reaction is supported by the effects of quenchers and scavengers. Suprofen photosensitizes the production of alkali-labile cleavage sites in DNA much more efficiently than direct strand breaks. [2] Suprofen sensitizes photo-oxidation of cholesterol, producing 7 alpha- and 7 beta-hydroperoxides but not 5 alpha-hydroperoxide of cholesterol. Suprofen-sensitized photo-oxidation of membrane lipids of liposomes increases leakage of trapped glucose, suggesting photosensitized destabilization of the membrane structure. [3] Suprofen incorporation in the phosphatidylcholine (PC) evaporation vesicles (REV) membrane leads to approximately 5% increase in the encapsulation efficiency (34%) in comparison to standard REV (29%). [4]