Table 3.

Inhibition of telomerase activity in vitro by PP-0.39.

WellControlPP-0.39
1 μg/ml3 μg/ml10 μg/ml30 μg/ml
Average Ct26.40 ± 0.08427.50 ± 0.03528.84 ± 0.05531.22 ± 0.18736.98 ± 1
TSR8, amoles54.80 ± 6.0312.66 ± 0.592.15 ± 0.160.09 ± 0.0220
% of Control activity10023.103.920.160
  • Twenty five μl reaction mixture in each well included 5 μl 5 × TRAPeze RT Reaction Mix, 0.4 μl Taq Polymerase (5 units/μl), 2 μl enzyme extract from HL-60 cells, and 17.6 μl nuclease free water containing various amount of PP-0.39 as indicated. The real-time experiment was conducted to include PCR parameters described in Experimental Procedures to obtain average Ct values. Data are expressed as means±SD, n = 3 in each group. The amount of TSR8 was derived from the standard curve shown in Fig. 6.