Abstract
Oxygen is a key regulator of liver regeneration. Hypoxia-inherent to the expansion of parenchyme-activates Hif2a to couple hepatocyte mitosis with the angiogenic phase. Hif2a acts as a safeguard to initiate sinusoidal reconstruction only upon successful hepatocyte mitosis, thereby enforcing a timely order onto cell type-specific regeneration patterns. These findings portray the hypoxia-driven Hif2a-Vegf axis as a prime node in coordinating sinusoidal endothelial cell-hepatocyte crosstalk during liver regeneration. (Hepatology 2016;64:2198-2209).
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