Figure 5: Cleavage of Z-GP-CI-994 when incubating with (A) HEK293 and HEK293/FAPα+ cells; (B) 3T3 and 3T3/FAPα+ cells; (C) 4T1 and 4T1/FAPα+ cells; (D) HepG2, A549, 3T3, 4T1 and 293 cells at 37°C for 48 h. Concentration of Z-GP-CI-994: 30 μM; Cell density: 2~3×105 cells per well.