Article (Scientific journals)
Single-cell RNA sequencing of human liver reveals hepatic stellate cell heterogeneity.
Payen, Valéry L; Lavergne, Arnaud; Alevra Sarika, Niki et al.
2021In JHEP Reports: Innovation in Hepatology, 3 (3), p. 100278
Peer reviewed
 

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Keywords :
BSA, bovine serum albumin; CC, cholangiocyte; CV, central vein; DEG, differentially expressed gene; EC, endothelial cell; ECM, extracellular matrix; Extracellular matrix; FFPE, formaldehyde-fixed paraffin embedded; GAG, glycosaminoglycan; GEO, Gene Expression Omnibus; GO, gene ontology; HEP, hepatocyte; HLA, human leukocyte antigen; HRP, horseradish peroxidase; HSC, hepatic stellate cell; Hepatocyte; ISH, in situ hybridisation; KLR, killer lectin-like receptor; LP, lymphoid cell; Liver cell atlas; MP, macrophage; MZ, midzonal; PC, pericentral; PP, periportal; PV, portal vein; TBS, Tris buffered saline; TSA, tyramide signal amplification; UMAP, uniform manifold approximation and projection; UMI, unique molecular identifier; VIM, vimentin; Zonation; scRNA-seq, single-cell RNA-sequencing; Immunology and Allergy; Internal Medicine; Hepatology; Gastroenterology
Abstract :
[en] Background & Aims: The multiple vital functions of the human liver are performed by highly specialised parenchymal and non-parenchymal cells organised in complex collaborative sinusoidal units. Although crucial for homeostasis, the cellular make-up of the human liver remains to be fully elucidated. Here, single-cell RNA-sequencing was used to unravel the heterogeneity of human liver cells, in particular of hepatocytes (HEPs) and hepatic stellate cells (HSCs). Method: The transcriptome of ~25,000 freshly isolated human liver cells was profiled using droplet-based RNA-sequencing. Recently published data sets and RNA in situ hybridisation were integrated to validate and locate newly identified cell populations. Results: In total, 22 cell populations were annotated that reflected the heterogeneity of human parenchymal and non-parenchymal liver cells. More than 20,000 HEPs were ordered along the portocentral axis to confirm known, and reveal previously undescribed, zonated liver functions. The existence of 2 subpopulations of human HSCs with unique gene expression signatures and distinct intralobular localisation was revealed (i.e. portal and central vein-concentrated GPC3 + HSCs and perisinusoidally located DBH + HSCs). In particular, these data suggest that, although both subpopulations collaborate in the production and organisation of extracellular matrix, GPC3 + HSCs specifically express genes involved in the metabolism of glycosaminoglycans, whereas DBH + HSCs display a gene signature that is reminiscent of antigen-presenting cells. Conclusions: This study highlights metabolic zonation as a key determinant of HEP transcriptomic heterogeneity and, for the first time, outlines the existence of heterogeneous HSC subpopulations in the human liver. These findings call for further research on the functional implications of liver cell heterogeneity in health and disease. Lay summary: This study resolves the cellular landscape of the human liver in an unbiased manner and at high resolution to provide new insights into human liver cell biology. The results highlight the physiological heterogeneity of human hepatic stellate cells.
Disciplines :
Gastroenterology & hepatology
Author, co-author :
Payen, Valéry L ;  Laboratory of Pediatric Hepatology and Cell Therapy (PEDI), IREC Institute, Université catholique de Louvain, Brussels, Belgium ; Laboratory of Advanced Drug Delivery and Biomaterials (ADDB), LDRI Institute, Université catholique de Louvain, Brussels, Belgium
Lavergne, Arnaud   ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA) > Génomique animale
Alevra Sarika, Niki;  Laboratory of Pediatric Hepatology and Cell Therapy (PEDI), IREC Institute, Université catholique de Louvain, Brussels, Belgium ; Laboratory of Advanced Drug Delivery and Biomaterials (ADDB), LDRI Institute, Université catholique de Louvain, Brussels, Belgium
Colonval, Megan ;  Université de Liège - ULiège > Integrative Biological Sciences (InBioS)
Karim, Latifa ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA) > Génomique animale
Deckers, Manon ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA) > Génomique animale
Najimi, Mustapha;  Laboratory of Pediatric Hepatology and Cell Therapy (PEDI), IREC Institute, Université catholique de Louvain, Brussels, Belgium
Coppieters, Wouter ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA) > Génomique animale
CHARLOTEAUX, Benoit  ;  Centre Hospitalier Universitaire de Liège - CHU > > Service de génétique
Sokal, Etienne M;  Laboratory of Pediatric Hepatology and Cell Therapy (PEDI), IREC Institute, Université catholique de Louvain, Brussels, Belgium
El Taghdouini, Adil;  Laboratory of Pediatric Hepatology and Cell Therapy (PEDI), IREC Institute, Université catholique de Louvain, Brussels, Belgium
 These authors have contributed equally to this work.
Language :
English
Title :
Single-cell RNA sequencing of human liver reveals hepatic stellate cell heterogeneity.
Publication date :
21 March 2021
Journal title :
JHEP Reports: Innovation in Hepatology
ISSN :
2589-5559
eISSN :
2589-5559
Publisher :
Elsevier B.V., Netherlands
Volume :
3
Issue :
3
Pages :
100278
Peer reviewed :
Peer reviewed
Funding text :
This research was funded by grants from La Wallonie (SPW Recherche DGO6 WALInnov program, convention no. 1710035) and the Brussels-Capital Region (Innoviris, RBC/2020-SPIN-206), together with the support of Promethera Biosciences SA . Promethera Biosciences SA had no influence on the design, the collection, analysis and interpretation of data, the writing of the report, or the decision to submit the article for publication.
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since 11 March 2022

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