New ProteomeXchange dataset PXD062231

[ProteomeCentral Agent]

Dear ProteomeXchange subscriber, a new ProteomeXchange dataset is being announced. To see more information, click here:

https://proteomecentral.proteomexchange.org/dataset/PXD062231

Summary of dataset

Status: new
Identifier: PXD062231
HostingRepository: PRIDE
Species: Homo sapiens
Title: Single-cell spatial proteomics maps human liver zonation patterns and their vulnerability to disruption in tissue architecture
Submitter: Mario Oroshi
LabHead: Matthias Mann
Description: Understanding protein distribution patterns across tissue architecture is crucial for deciphering organ function in health and disease. Here, we applied single-cell Deep Visual Proteomics to perform spatially-resolved proteome analysis of individual cells in native tissue. We built a robust framework comprising strategic cell selection and continuous protein gradient mapping, allowing the investigation of larger clinical cohorts. We generated a comprehensive spatial map of the human hepatic proteome by analyzing hundreds of isolated hepatocytes from 18 individuals. Among the 2,500 proteins identified per cell, about half exhibited zonated expression patterns. Cross-species comparison with male mice revealed conserved metabolic functions and human-specific features of liver zonation. Analysis of samples with disrupted liver architecture demonstrated widespread loss of protein zonation, with pericentral proteins being particularly susceptible. Our study provides a comprehe
nsive and open-access resource of human liver organization while establishing a broadly applicable framework for spatial proteomics analyses along tissue gradients.

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