Differential expansion of T central memory precursor and effector subsets is regulated by division speed
Details
Publication Year 2020-01-08,Volume 11,Issue #1,Page 113
Journal Title
Nature Communications
Publication Type
Journal Article
Abstract
While antigen-primed T cells proliferate at speeds close to the physiologic maximum of mammalian cells, T cell memory is maintained in the absence of antigen by rare cell divisions. The transition between these distinct proliferative programs has been difficult to resolve via population-based analyses. Here, we computationally reconstruct the proliferative history of single CD8(+) T cells upon vaccination and measure the division speed of emerging T cell subsets in vivo. We find that slower cycling central memory precursors, characterized by an elongated G1 phase, segregate early from the bulk of rapidly dividing effector subsets, and further slow-down their cell cycle upon premature removal of antigenic stimuli. In contrast, curtailed availability of inflammatory stimuli selectively restrains effector T cell proliferation due to reduced receptivity for interleukin-2. In line with these findings, persistence of antigenic but not inflammatory stimuli throughout clonal expansion critically determines the later size of the memory compartment.
Publisher
NPG
Research Division(s)
Immunology
PubMed ID
31913278
Open Access at Publisher's Site
https://doi.org/10.1038/s41467-019-13788-w
Terms of Use/Rights Notice
Refer to copyright notice on published article.


Creation Date: 2020-02-24 09:56:00
Last Modified: 2020-02-24 12:23:06
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