Publication
Title
An idiosyncratic zonated stroma encapsulates desmoplastic liver metastases and originates from injured liver
Author
Abstract
A perimetastatic capsule is a strong positive prognostic factor in liver metastases, but its origin remains unclear. Here, we systematically quantify the capsule's extent and cellular composition in 263 patients with colorectal cancer liver metastases to investigate its clinical significance and origin. We show that survival improves proportionally with increasing encapsulation and decreasing tumor-hepatocyte contact. Immunostaining reveals the gradual zonation of the capsule, transitioning from benign-like NGFR(high) stroma at the liver edge to FAP(high) stroma towards the tumor. Encapsulation correlates with decreased tumor viability and preoperative chemotherapy. In mice, chemotherapy and tumor cell ablation induce capsule formation. Our results suggest that encapsulation develops where tumor invasion into the liver plates stalls, representing a reparative process rather than tumor-induced desmoplasia. We propose a model of metastases growth, where the efficient tumor colonization of the liver parenchyma and a reparative liver injury reaction are opposing determinants of metastasis aggressiveness. Cancer liver metastases can be encapsulated by a fibrotic stroma. Here the authors use digital pathology to generate spatial growth pattern maps of colorectal cancer liver metastasis and show that prognosis depends on the degree of fibrotic encapsulation.
Language
English
Source (journal)
Nature communications
Publication
2023
ISSN
2041-1723
DOI
10.1038/S41467-023-40688-X
Volume/pages
14 :1 (2023) , p. 1-19
Article Reference
5024
ISI
001052224700020
Pubmed ID
37596278
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 30.10.2023
Last edited 25.04.2024
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