A distinct human cell type expressing MHCII and RORγt with dual characteristics of dendritic cells and type 3 innate lymphoid cells
Recent studies have characterized various mouse antigen-presenting cells (APCs) expressing the lymphoid-lineage transcription factor RORγt (Retinoid-related orphan receptor gamma t), which exhibit distinct phenotypic features and are implicated in the induction of peripheral regulatory T cells (Tregs) and immune tolerance to microbiota and self-antigens. These APCs encompass Janus cells and Thetis cell subsets, some of which express the AutoImmune REgulator (AIRE). RORγt+ MHCII+ type 3 innate lymphoid cells (ILC3) have also been implicated in the instruction of microbiota-specific Tregs. While RORγt+ APCs have been actively investigated in mice, the identity and function of these cell subsets in humans remain elusive. Herein, we identify a rare subset of RORγt+ cells with dendritic cell (DC) features through integrated single-cell RNA sequencing and single-cell ATAC sequencing. These cells, which we term RORγt+ DC-like cells (R-DC-like), exhibit DC morphology, express the MHC class II machinery, and are distinct from all previously reported DC and ILC3 subsets, but share transcriptional and epigenetic similarities with DC2 and ILC3. We have developed procedures to isolate and expand them in vitro, enabling their functional characterization. R-DC-like cells proliferate in vitro, continue to express RORγt, and differentiate into CD1c+ DC2-like cells. They stimulate the proliferation of allogeneic T cells. The identification of human R-DC-like cells with proliferative potential and plasticity toward CD1c+ DC2-like cells will prompt further investigation into their impact on immune homeostasis, inflammation, and autoimmunity.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:120 |
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| Enthalten in: |
Proceedings of the National Academy of Sciences of the United States of America - 120(2023), 52 vom: 26. Dez., Seite e2318710120 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ulezko Antonova, Alina [VerfasserIn] |
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| Links: |
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| Themen: |
Antigen presentation |
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| Anmerkungen: |
Date Completed 20.12.2023 Date Revised 25.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1073/pnas.2318710120 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM366002279 |
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| 100 | 1 | |a Ulezko Antonova, Alina |e verfasserin |4 aut | |
| 245 | 1 | 2 | |a A distinct human cell type expressing MHCII and RORγt with dual characteristics of dendritic cells and type 3 innate lymphoid cells |
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| 500 | |a Date Revised 25.04.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Recent studies have characterized various mouse antigen-presenting cells (APCs) expressing the lymphoid-lineage transcription factor RORγt (Retinoid-related orphan receptor gamma t), which exhibit distinct phenotypic features and are implicated in the induction of peripheral regulatory T cells (Tregs) and immune tolerance to microbiota and self-antigens. These APCs encompass Janus cells and Thetis cell subsets, some of which express the AutoImmune REgulator (AIRE). RORγt+ MHCII+ type 3 innate lymphoid cells (ILC3) have also been implicated in the instruction of microbiota-specific Tregs. While RORγt+ APCs have been actively investigated in mice, the identity and function of these cell subsets in humans remain elusive. Herein, we identify a rare subset of RORγt+ cells with dendritic cell (DC) features through integrated single-cell RNA sequencing and single-cell ATAC sequencing. These cells, which we term RORγt+ DC-like cells (R-DC-like), exhibit DC morphology, express the MHC class II machinery, and are distinct from all previously reported DC and ILC3 subsets, but share transcriptional and epigenetic similarities with DC2 and ILC3. We have developed procedures to isolate and expand them in vitro, enabling their functional characterization. R-DC-like cells proliferate in vitro, continue to express RORγt, and differentiate into CD1c+ DC2-like cells. They stimulate the proliferation of allogeneic T cells. The identification of human R-DC-like cells with proliferative potential and plasticity toward CD1c+ DC2-like cells will prompt further investigation into their impact on immune homeostasis, inflammation, and autoimmunity | ||
| 650 | 4 | |a Journal Article | |
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| 650 | 4 | |a dendritic cells | |
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| 700 | 1 | |a Lonardi, Silvia |e verfasserin |4 aut | |
| 700 | 1 | |a Monti, Matilde |e verfasserin |4 aut | |
| 700 | 1 | |a Missale, Francesco |e verfasserin |4 aut | |
| 700 | 1 | |a Fan, Changxu |e verfasserin |4 aut | |
| 700 | 1 | |a Coates, Matthew L |e verfasserin |4 aut | |
| 700 | 1 | |a Bugatti, Mattia |e verfasserin |4 aut | |
| 700 | 1 | |a Jaeger, Natalia |e verfasserin |4 aut | |
| 700 | 1 | |a Fernandes Rodrigues, Patrick |e verfasserin |4 aut | |
| 700 | 1 | |a Brioschi, Simone |e verfasserin |4 aut | |
| 700 | 1 | |a Trsan, Tihana |e verfasserin |4 aut | |
| 700 | 1 | |a Fachi, José L |e verfasserin |4 aut | |
| 700 | 1 | |a Nguyen, Khai M |e verfasserin |4 aut | |
| 700 | 1 | |a Nunley, Ryan M |e verfasserin |4 aut | |
| 700 | 1 | |a Moratto, Daniele |e verfasserin |4 aut | |
| 700 | 1 | |a Zini, Stefania |e verfasserin |4 aut | |
| 700 | 1 | |a Kong, Lingjia |e verfasserin |4 aut | |
| 700 | 1 | |a Deguine, Jacques |e verfasserin |4 aut | |
| 700 | 1 | |a Peeples, Mark E |e verfasserin |4 aut | |
| 700 | 1 | |a Xavier, Ramnik J |e verfasserin |4 aut | |
| 700 | 1 | |a Clatworthy, Menna R |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Ting |e verfasserin |4 aut | |
| 700 | 1 | |a Cella, Marina |e verfasserin |4 aut | |
| 700 | 1 | |a Vermi, William |e verfasserin |4 aut | |
| 700 | 1 | |a Colonna, Marco |e verfasserin |4 aut | |
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