Michael J. Powell
Accepted Abstracts: J Stem Cell Res Ther
Minor groove binding DNA alkylating agents typified by CC-1065 and duocarmycin analogs have been studied in the past by several groups as potential potent anti-cancer drugs. However, their clinical utility has been hindered by the systemic toxicity observed at therapeutic doses. We have developed a novel approach to delivering these class of agents selectively to cancer cells ' in vivo .' Using a a novel gene directed enzyme prodrug therapy (GDEPT) approach that employs an enzyme fragment complementation strategy. Several novel enzyme activatable prodrugs of seco-CBI DNA minor groove binding alkylators have been synthesized and used in a new GDEPT approach that has been validated in human tumor xenograft models. This approach will be described and its potential for the targeted therapy of cancer discussed.