Table 1

Effect of different signal transduction inhibitors on bFGF-induced cell proliferation, in the presence or absence of the MEK inhibitor PD 98059

–PD98059 (10 μM)+PD98059  (10 μM)
bFGF (30 ng/ml)100  ± 828.4  ± 1**
bFGF + D609 (20 μM)70  ± 5.11-150 21  ± 1.9**
bFGF + NNA (1 μM)80  ± 31-150 17  ± 2.3**
bFGF + Ly-83583 (10 nM)71  ± 4.21-150 21.2  ± 2.1**
bFGF + KT 5823 (100 nM)70  ± 41-150 22  ± 3**

Data are expressed as percentage of bFGF-induced [3H]thymidine incorporation. Basic FGF caused an increase of 130% over basal [3H]thymidine incorporation (p < 0.01).

  • 1-150 , p < 0.05;**, p < 0.01 versus bFGF.