Activation of methotrexate-phenylalanine by monoclonal antibody--carboxypeptidase A conjugate for the specific treatment of ovarian cancer in vitro.

Abstract

Monoclonal antibody 4E3 directed against a glycosylated surface protein on human ovarian teratocarcinoma cells (CRL-1572 cell line) was conjugated to bovine carboxypeptidase A (CPA) using a 3400 Da polyethylene glycol chain bearing an N-hydroxysuccinimide group at both ends. The conjugate preparation was purified by fast protein liquid chromatography on a… (More)
DOI: 10.1038/bjc.1996.50

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