A three component therapeutic system that comprises (i) a first compound; (ii) a catalytic macromolecule which does not specifically bind to a tumour antigen, but which is capable, following administration to the vascular compartment of a mammal, of being taken up by a tumour in the mammal, and is capable of converting the first compound into a second compound; and (iii) an inhibitor which, following administration to the said vascular compartment, reduces the level of the said catalytic conversion activity in the vascular compartment.
一种由三部分组成的治疗系统,包括:(i) 第一种化合物;(ii) 催化大分子,它不与肿瘤抗原特异性结合,但在对哺乳动物的血管区段给药后,能被哺乳动物体内的肿瘤吸收,并能将第一种化合物转化为第二种化合物;(iii)
抑制剂,在对上述血管区段给药后,能降低血管区段中上述催化转化活性的
水平。