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A spatial transcriptomics atlas of live donors reveals unique zonation patterns in the healthy human liver

Yakubovsky, O.; Afriat, A.; Egozi, A.; Bahar Halpern, K.; Barkai, T.; Harnik, Y.; Korem Kohanim, Y.; Novoselsky, R.; Golani, O.; Goliand, I.; Addadi, Y.; Kedmi, M.; Keren-Shaul, H.; Fellus-Alyagor, L.; Hirsch, D.; Mayer, C.; Peri, R.; Pencovich, N.; Timucin, T.; Nachmany, I.; Itzkovitz, S.

2025-02-23 cell biology
10.1101/2025.02.22.639181 bioRxiv
Show abstract

Reconstructing gene expression atlases for human tissues is challenging due to limited access to healthy samples from live donors. Neurologically deceased donors often show ischemic changes, while tissues near diseased regions may have altered gene expression. The liver, with its unique regenerative capacity, allows analysis from live healthy donors (LHDs). Using spatial transcriptomics (Visum, Visium HD and MERFISH), we analyzed 16 liver samples: eight from young LHDs and eight from patients with liver pathology, sampling adjacent normal tissue. LHD livers displayed significant gene expression differences from adjacent normal tissues. Hepatocytes exhibited marked zonation along the porto-central axis of liver lobules, with key functions pericentrally shifted compared to other mammals. Our atlas identified dynamic programs in early steatotic hepatocytes, showing transitions from lipid uptake in low-lipid regions to insulin hypersensitivity in high-lipid regions. This study presents a spatial gene expression reference for the healthy human liver and insights into hepatocyte adaptations in steatosis.

Published in Nature (predicted rank #1) · training set

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