van der Gracht ETI, Beyrend G, Abdelaal T, Pardieck IN, Wesselink TH, van Haften FJ, van Duikeren S, Koning F, Arens R. Memory CD8
+ T cell heterogeneity is primarily driven by pathogen-specific cues and additionally shaped by the tissue environment.
iScience 2020;
24:101954. [PMID:
33458613 PMCID:
PMC7797528 DOI:
10.1016/j.isci.2020.101954]
[Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/06/2020] [Accepted: 12/12/2020] [Indexed: 12/15/2022] Open
Abstract
Factors that govern the complex formation of memory T cells are not completely understood. A better understanding of the development of memory T cell heterogeneity is however required to enhance vaccination and immunotherapy approaches. Here we examined the impact of pathogen- and tissue-specific cues on memory CD8+ T cell heterogeneity using high-dimensional single-cell mass cytometry and a tailored bioinformatics pipeline. We identified distinct populations of pathogen-specific CD8+ T cells that uniquely connected to a specific pathogen or associated to multiple types of acute and persistent infections. In addition, the tissue environment shaped the memory CD8+ T cell heterogeneity, albeit to a lesser extent than infection. The programming of memory CD8+ T cell differentiation during acute infection is eventually superseded by persistent infection. Thus, the plethora of distinct memory CD8+ T cell subsets that arise upon infection is dominantly sculpted by the pathogen-specific cues and further shaped by the tissue environment.
Heterogeneous subsets of both circulating and tissue-resident memory CD8+ T cells exist
Memory CD8+ T cell heterogeneity is profoundly sculpted by pathogen-specific cues
Memory CD8+ T cell heterogeneity is additionally shaped by the tissue environment
Viral persistance supersedes memory CD8+ T cell differentiation after acute infection
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