Research Article

Purinergic Signaling Mediates PTH and Fluid Flow-Induced Osteoblast Proliferation

Figure 4

P2Y2 purinergic receptors are involved in PTH and oscillatory fluid flow-induced osteoblast responses. (a) Knockdown of P2Y2 inhibits ERK1/2 phosphorylation while the overexpression of P2Y2 enhances ERK1/2 phosphorylation. (b) Knockdown of P2Y2 inhibits CREB phosphorylation while the overexpression of P2Y2 enhances CREB phosphorylation. (, , each bar represents the ).
(a)
(b)