Spatiotemporal mapping of endothelial proliferative response in acute chemical liver injury

Endothelial cells enter the cell cycle after acute centrilobular liver injury with a delayed, pericentral-zone–biased pattern distinct from hepatocyte cycling across the lobule.

• Why it matters: A detailed spatiotemporal map of how endothelial proliferation adapts to acute liver injury is missing, limiting understanding of regeneration and downstream chronic disease risk.
• What they did: The authors built a pipeline for spatiotemporal analysis of proliferative response in injured livers, comparing endothelial and hepatocyte cell-cycle entry and spatial distribution.
• The result: Endothelial cycling is linked to heightened clonal expansion and rare serial division, producing endothelial overabundance in injured lobules during regeneration.

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