Tag

Zonation

All articles tagged with #zonation

Live-donor atlas maps healthy liver zonation and early steatosis dynamics
science1 month ago

Live-donor atlas maps healthy liver zonation and early steatosis dynamics

Researchers built a high‑resolution spatial atlas of the healthy human liver from live donors, integrating Visium, MERFISH and single-nucleus RNA‑seq to map hepatocyte zonation along the porto–central axis and compare with adjacent diseased tissue. They validate distinct pericentral and periportal programs, reveal early steatosis signatures such as reduced nuclear-encoded mitochondrial genes with compensatory mitochondria-encoded transcripts, and extend analyses to other mammals. The atlas provides a healthy-liver baseline to advance biology and disease research.

Single-cell proteomics maps human liver zonation and its fragility in diseased tissue
science3 months ago

Single-cell proteomics maps human liver zonation and its fragility in diseased tissue

Researchers used advanced scDVP to profile hundreds of hepatocytes from 18 people, building a high-resolution map of protein gradients along the liver's porto–central axis. They quantified ~2,500 proteins per cell, showed roughly half are zonated, and introduced gradient-based analysis to quantify zonation without binning. Cross-species comparison with mice revealed shared and human-specific zonation features; in tissues with disrupted architecture, zonation is broadly lost. The study delivers an open-access liver proteome resource and a framework applicable to spatial proteomics.