Representative images of the puro-PLA newly synthesized beta-actin signal (purple) in the axons of shControl, shYthdf1, shMettl14, shControl + APC-HA, shYthdf1+ APC-HA, and shMettl14+ APC-HA DIV6 neurons. The arrowheads indicate the newly synthesized beta-actin in the transfected neurons. Scale bars, 5 μm.