Single cell transcriptomics of regulatory T cells reveals trajectories of tissue adaptation

Summary Non-lymphoid tissues (NLTs) harbour a pool of adaptive immune cells, the development and phenotype of which remains largely unexplored. Here, we used single-cell RNA-seq to characterise CD4+regulatory (Treg) and memory (Tmem) T cells in mouse skin and colon, the respective draining lymph nodes and spleen. From this data, we modelled a continuous lymphoid-to-NLT trajectory for Treg, and reconstructed the mechanisms of cell migration and NLT adaption. This revealed a shared transcriptional programme of NLT priming in both skin and colon-associated lymph nodes, followed by tissue-specific adaptation. Predicted migration kinetics were validated using a melanoma-induction model, emphasizing the relevance of key regulators and receptors, includingBatf, Rora, Ccr8, Samsn1. Finally, we profiled human blood and NLT Treg and Tmem cells, identifying cross-mammalian conserved tissue signatures. In summary, we have identified molecular signals mediating NLT Treg recruitment and tissue adaptation through the combined use of computational prediction andin vivovalidation..

Medienart:

Preprint

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

bioRxiv.org - (2023) vom: 28. Aug. Zur Gesamtaufnahme - year:2023

Sprache:

Englisch

Beteiligte Personen:

Miragaia, Ricardo J [VerfasserIn]
Gomes, Tomás [VerfasserIn]
Chomka, Agnieszka [VerfasserIn]
Jardine, Laura [VerfasserIn]
Riedel, Angela [VerfasserIn]
Hegazy, Ahmed N. [VerfasserIn]
Lindeman, Ida [VerfasserIn]
Emerton, Guy [VerfasserIn]
Krausgruber, Thomas [VerfasserIn]
Shields, Jacqueline [VerfasserIn]
Haniffa, Muzlifah [VerfasserIn]
Powrie, Fiona [VerfasserIn]
Teichmann, Sarah A. [VerfasserIn]

Links:

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Themen:

570
Biology

doi:

10.1101/217489

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI000200514