Table 2

Enzyme-prodrug systems under investigation for genetic prodrug activation therapy applications

Enzyme
Prodrug
Cytotoxic product

Herpes simplex virus thymidine kinase
Ganciclovir
Ganciclovir triphosphate
Cytosine deaminase
5-Fluorocytosine
5-Fluorouracil
Varicella zoster virus thymidine kinase
6-Methoxypurine arabinose
Adenine arabinonucleoside triphosphate
Nitroreductase
CB1954
5-Aziridinyl-4-hydroxylamino-2-nitrobenzamide
Cytochrome p450
Cyclophosphamide
Acrolein and phosphoramide mustard
Thymidine phosphorylase
5' -Deoxy-5-fluorouridine
5-Fluorouracil
Purine nucleoside phosphorylase
6-Methylpurine-deoxyriboside
6-Methylpurine
Alkaline phosphatase
Etoposide phosphate
Etoposide
Carboxypeptidase A
Methotrexate-alanine
Methotrexate
Carboxypeptidase G2
Benzoic acid mustard-glucuronide
Benzoic acid mustard
Linamarase
Linamarin
Cyanide
Xanthine oxidase
Xanthine
Oxygen radicals
β -Lactamase
Cephalosporin-mustard-carbamate
Nitrogen mustard

Vassaux and Lemoine Breast Cancer Res 2000 2:22   doi:10.1186/bcr25