Novel Inhibitors of Carboxypeptidase G<sub>2</sub> (CPG<sub>2</sub>): Potential Use in Antibody-Directed Enzyme Prodrug Therapy
作者:Tariq H. Khan、Ebun A. Eno-Amooquaye、Frances Searle、Pat J. Browne、Helen M. I. Osborn、Philip J. Burke
DOI:10.1021/jm990004i
日期:1999.3.1
The design and synthesis of potent thiocarbamate inhibitors for carboxypeptidase Ga are described. The best thiocarbamate inhibitor N-(p-methoxybenzenethiocarbonyl)amino-L-glutamic acid 6d, chosen for preliminary investigations of in vitro antibody-directed enzyme prodrug therapy (ADEPT), abrogated the cytotoxicity of a combination of A5B7-carboxypeptidase G(2) conjugate and prodrug PGP (N-p-N,N-bis (2-chloroethyl)amino}phenoxycarbonyl-L-glutamate) toward LS174T cells. This is the first report of a small-molecule enzyme inhibitor proposed for use in conjunction with the ADEPT approach.