Fig. 7.
Antiproliferative effects of doxorubicin, prodrug N-[4-doxorubicin-N-carbonyl(-oxymethyl) phenyl] O-β-glucuronyl carbamate (DOX-GA3), and prodrug combined with scFv-CD20–β-glucuronidase. Cells were incubated with fusion protein, blocking antibody, and fusion protein, or PBS. Cells were then seeded in 96-wells plates and exposed to drug or prodrug for 24 hours. After 72 hours, cell growth was measured with a protein dye, Sulforhodamine B.