| Literature DB >> 10395490 |
I Niculescu-Duvaz1, D Niculescu-Duvaz, F Friedlos, R Spooner, J Martin, R Marais, C J Springer.
Abstract
Four novel potential prodrugs derived from daunorubicin (8, 10) and doxorubicin (12, 14) were designed and synthesized. They are self-immolative prodrugs for suicide gene therapy activation by the enzyme carboxypeptidase G2 (CPG2) subsequently releasing the corresponding anthracyclines, by a 1,6-elimination mechanism. A mammary carcinoma cell line (MDA MB 361) was engineered to express CPG2 intracellularly (CPG2) or extracellularly, tethered to the outer cell membrane (stCPG2(Q)3). The prodrugs derived from doxorubicin showed prodrug/drug cytotoxicity differentials of 21-fold (compound 12) and 23-fold (compound 14). Prodrug 12 underwent an 11-fold activation when assayed in the cell line expressing externally surface-tethered CPG2.Entities:
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Year: 1999 PMID: 10395490 DOI: 10.1021/jm980696v
Source DB: PubMed Journal: J Med Chem ISSN: 0022-2623 Impact factor: 7.446