Fisher) and 60 µg proteins were fractionated on 10% SDS-PAGE gels and transferred to a polyvinylidene difluoride membrane. The membrane was incubated in anti-WNT3A (ab19925,
Abcam; 1:200 dilution) at 4°C overnight after blocking with 5% milk (Morinaga & Co., Ltd.). HRP-conjugated antibody (Goat anti-Rabbit IgG (H+L) (Code No. 65-6120, ThermoFisher; 1:1,000
dilution) was used as the secondary antibody to incubate the membrane at room temperature for 1h. The membranes were analyzed using β-actin (Cell signaling, Danvers, MA, USA; 1:1,000
dilution) as the reference primary antibody.