IGF2 acts downstream of Hippo signaling to regulate organ growth and restore liver regeneration in aging.
Precise regulation of organ size is essential for proper function, yet the underlying logic remains unclear. Here, we identify a Hippo-IGF2 signaling axis as a regulator of organ growth. During mouse liver development, Igf2 is highly expressed in fetal and neonatal hepatocytes to fuel rapid growth but is directly silen...