Transcriptomic Analysis and High-dimensional Phenotypic Mapping of Mononuclear Phagocytes in Mesenteric Lymph Nodes Reveal Differences Between Ulcerative Colitis and Crohn's Disease.
Antigens, CD
/ genetics
Antigens, Differentiation, Myelomonocytic
/ genetics
Colitis, Ulcerative
/ genetics
Crohn Disease
/ genetics
Dendritic Cells
/ immunology
Female
Gene Expression Profiling
/ methods
Humans
Lipopolysaccharide Receptors
/ genetics
Lymph Nodes
/ immunology
Male
Mesentery
Middle Aged
Mononuclear Phagocyte System
/ metabolism
Receptors, Cell Surface
/ genetics
Receptors, IgG
/ genetics
Receptors, Scavenger
/ immunology
Th17 Cells
/ immunology
Crohn’s disease
Mesenteric lymph nodes
RNAseq
dendritic cells
macrophages
mass cytometry
monocytes
ulcerative colitis
Journal
Journal of Crohn's & colitis
ISSN: 1876-4479
Titre abrégé: J Crohns Colitis
Pays: England
ID NLM: 101318676
Informations de publication
Date de publication:
13 Mar 2020
13 Mar 2020
Historique:
pubmed:
22
9
2019
medline:
5
1
2021
entrez:
22
9
2019
Statut:
ppublish
Résumé
Crohn's disease [CD] and ulcerative colitis [UC] are distinct forms of inflammatory bowel disease. Heterogeneity of HLA-DR+SIRPα + mononuclear phagocytes [MNPs], including macrophages [MΦ], monocyte-derived [Mono] cells, and dendritic cells [DCs], was reported in gut tissue but not yet investigated in mesenteric lymph nodes [MLNs] of IBD patients. We here compared the phenotype, function, and molecular profile of HLA-DR+SIRPα + MNPs in CD and UC MLNs. Cell distribution, morphology, immune function, and transcriptomic [bulk RNAseq] and high-dimensional protein expression profiles [CyTOF] of HLA-DR+SIRPα + MNPs were examined in MLNs of UC [n = 14], CD [n = 35], and non-IBD [n = 12] patients. Elevated frequencies of CD14+CD64+CD163+ [Mono/MΦ-like] MNPs displaying monocyte/MΦ morphology and phagocytic function were a distinct feature of UC MLNs. In CD, the proportion of CD14-CD64-CD163- [DC-like] cells was augmented relative to Mono/MΦ-like cells; DC-like cells drove naïve T cell proliferation, Th1 polarisation, and Th17 TCM plasticity. Gene expression profile corroborated the nature of DC-like cells, best represented by BTLA, SERPINF, IGJ and, of Mono/MΦ-like cells, defined by CD163, MARCO, MAFB, CD300E, S100A9 expression. CyTOF analysis showed that CD123+ plasmacytoid cells predominated over conventional DCs in DC-like cells. Four CD163+ clusters were revealed in Mono/MΦ-like cells, two of which were enriched in MARCO-CD68dimHLA-DRdim monocyte-like cells and MARCOhiCD68hiHLA-DRhi Mɸ, whose proportion increased in UC relative to CD. Defining the landscape of MNPs in MLNs provided evidence for expansion of CD163+ Mono/MΦ-like cells in UC only, highlighting a distinction between UC and CD, and thus the potential contribution of monocyte-like cells in driving colitis.
Sections du résumé
BACKGROUND AND AIMS
OBJECTIVE
Crohn's disease [CD] and ulcerative colitis [UC] are distinct forms of inflammatory bowel disease. Heterogeneity of HLA-DR+SIRPα + mononuclear phagocytes [MNPs], including macrophages [MΦ], monocyte-derived [Mono] cells, and dendritic cells [DCs], was reported in gut tissue but not yet investigated in mesenteric lymph nodes [MLNs] of IBD patients. We here compared the phenotype, function, and molecular profile of HLA-DR+SIRPα + MNPs in CD and UC MLNs.
METHODS
METHODS
Cell distribution, morphology, immune function, and transcriptomic [bulk RNAseq] and high-dimensional protein expression profiles [CyTOF] of HLA-DR+SIRPα + MNPs were examined in MLNs of UC [n = 14], CD [n = 35], and non-IBD [n = 12] patients.
RESULTS
RESULTS
Elevated frequencies of CD14+CD64+CD163+ [Mono/MΦ-like] MNPs displaying monocyte/MΦ morphology and phagocytic function were a distinct feature of UC MLNs. In CD, the proportion of CD14-CD64-CD163- [DC-like] cells was augmented relative to Mono/MΦ-like cells; DC-like cells drove naïve T cell proliferation, Th1 polarisation, and Th17 TCM plasticity. Gene expression profile corroborated the nature of DC-like cells, best represented by BTLA, SERPINF, IGJ and, of Mono/MΦ-like cells, defined by CD163, MARCO, MAFB, CD300E, S100A9 expression. CyTOF analysis showed that CD123+ plasmacytoid cells predominated over conventional DCs in DC-like cells. Four CD163+ clusters were revealed in Mono/MΦ-like cells, two of which were enriched in MARCO-CD68dimHLA-DRdim monocyte-like cells and MARCOhiCD68hiHLA-DRhi Mɸ, whose proportion increased in UC relative to CD.
CONCLUSIONS
CONCLUSIONS
Defining the landscape of MNPs in MLNs provided evidence for expansion of CD163+ Mono/MΦ-like cells in UC only, highlighting a distinction between UC and CD, and thus the potential contribution of monocyte-like cells in driving colitis.
Identifiants
pubmed: 31541232
pii: 5572419
doi: 10.1093/ecco-jcc/jjz156
pmc: PMC7068244
doi:
Substances chimiques
Antigens, CD
0
Antigens, Differentiation, Myelomonocytic
0
CD163 antigen
0
Lipopolysaccharide Receptors
0
Receptors, Cell Surface
0
Receptors, IgG
0
Receptors, Scavenger
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
393-405Informations de copyright
Copyright © 2019 European Crohn’s and Colitis Organisation (ECCO). Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.
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