P2Y1 receptor mediated the directional migration of SVZ neuroblasts in an EF. (A) Suramin (general purinergic receptor inhibitor, 5 μM) did not affect.

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P2Y1 receptor mediated the directional migration of SVZ neuroblasts in an EF. (A) Suramin (general purinergic receptor inhibitor, 5 μM) did not affect cell motility rate. P2Y1 receptor mediated the directional migration of SVZ neuroblasts in an EF. (A) Suramin (general purinergic receptor inhibitor, 5 μM) did not affect cell motility rate. However, the direction of EF induced migration was significantly inhibited when cells were treated with 5 μM suramin. (B) A specific inhibitor of P2Y1 (MSR2179, 120 μM) significantly inhibited the directedness of neuroblasts in an EF without affecting migration rate significantly. (C) Knockdown of P2Y1 with siRNA (P2Y1 KD) significantly reduced the directedness of neuroblast migration. (D) Suramin, MSR2179 and siRNAP2Y1 significantly reduced the directedness (Cosθ) of neuroblasts migration in an applied EF. The western blot inset shows downregulation of P2Y1 expression by siRNAP2Y1. Trajectories of cell migration are shown for 5 h. The directedness value (Cosθ) is mean±s.e.m. Total number of cells n=45–55. **P<0.01 (compared with that exposed to an EF without drug or siRNA treatment with unpaired t‐test). Scale bars, 100 μm. EF, electric field; siRNA, small interfering RNA; SVZ, subventricular zone. Lin Cao et al. EMBO Rep. 2013;14:184-190 © as stated in the article, figure or figure legend