MYCN and neuroblastoma: To examine whether PRKCQ‐AS1 and BMX are required for MSI2‐mediated neuroblastoma cell proliferation, we co‐transfected MYCN‐nonamplified SY5Y neuroblastoma cells with an empty vector or MSI2 expression construct, together with control siRNA, PRKCQ‐AS1 siRNA‐1, PRKCQ‐AS1 siRNA‐2, BMX siRNA‐1 or BMX siRNA‐2.