Fig. 4From: Asymmetric cell division of mammary stem cellsEffects on Notch, Numb, Musashi (Msh) and Hedgehog (Hh) pathways in controlling stemness. Numb inhibits both Hh and Notch regulated asymmetric cell division (ACD). Msh inhibits both Numb and p21 activity thereby inhibiting symmetric cell division and promoting ACDBack to article page