Figure 6.
Role of P2X and P2Y11 receptors in AMPK phosphorylation. HUVEC were stimulated with ATP (1 mmol/L, 5 minutes) with and without pre-incubation with KN62 (1 μmol/L, 20 minutes), the antagonist of P2X7 receptor. Cells were also treated with BzATP (100 and 300 μmol/L, 5 minutes), an agonist for P2X and P2Y11 receptors. Cell lysates were analyzed by Western blotting using antibodies to P-AMPK (Thr-172), AMPK-α and P-ACC. Results obtained from 3 independent experiments are presented as means ± S.E.M. **P< 0.01 compared to control.