Mutated Carboxypeptidase B enzyme conjugated to a tumour targeted antibody for use in Antibody Directed Enzyme Prodrug Therapy
Antibody Directed Enzyme Prodrug Therapy (ADEPT) systems for use in cancer based on mutated carboxypeptidase B (CPB) enzymes. Enzyme conjugates for ADEPT are substantially non-immunogenic in humans comprising a targeting moiety (for example an antibody) capable of binding with a tumor associated ant...
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Zusammenfassung: | Antibody Directed Enzyme Prodrug Therapy (ADEPT) systems for use in cancer based on mutated carboxypeptidase B (CPB) enzymes. Enzyme conjugates for ADEPT are substantially non-immunogenic in humans comprising a targeting moiety (for example an antibody) capable of binding with a tumor associated antigen, the targeting moiety being linked to a mutated form of a CPB enzyme capable of converting a prodrug into an antineoplastic drug wherein the prodrug is not significantly convertible into antineoplastic drug in humans by natural unmutated enzyme. A preferred enzyme mutant is human pancreatic CPB comprising a Lys or Arg residue at position 253. Suitable mustard prodrugs are disclosed in the specification. |
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