Dataset Information


The fate of CD8+ T cells during infection is linked to their developmental origin [Virtual_Memory_following_infection_timestamp]

ABSTRACT: During immune ontogeny the thymus is colonized by distinct waves of hematopoietic stem cells that give rise to unique lineages of immune cells. In this report, we asked whether the developmental origin of CD8+ T cells influences their response to infection later in adulthood. To answer this question, we developed a system to ‘timestamp’ CD8+ T cells in situ at various stages of development (1d and 28d) and examined their behavior after thymic differentiation. We found that neonatal-derived CD8+ T cells have an intrinsic propensity to become virtual memory cells prior to infection and are the first cells to proliferate and become effectors after microbial challenge. These data indicate that there are developmental layers in the adult CD8+ T cell response to infection and that the heterogeneity in the effector pool is linked to the variation in the developmental origins of the responding cells. This dataset profiles gene expression in 1day- and 28day-timestamped virtual memory (CD44hi) CD8+ T cells aged for 4 weeks of post-thymic differentiation and then transferred into congenically marked recipients. Timestamped cells were recovered 5 days following infection with Listeria monocytogenes. Overall design: Gene expression profiling of virtual memory (CD44hi) transgenic CD8+ T cells, 5 days following infection with Listeria, comparing cells made at 1 day or 28 days of life (in duplicate).

INSTRUMENT(S): Illumina NextSeq 500 (Mus musculus)

ORGANISM(S): Mus Musculus

SUBMITTER: Jennifer K Grenier 

PROVIDER: GSE109754 | GEO | 2018-06-14


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GSE109754_gene_exp.diff.gz Other
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Heterogeneity is a hallmark feature of the adaptive immune system in vertebrates. Following infection, naive T cells differentiate into various subsets of effector and memory T cells, which help to eliminate pathogens and maintain long-term immunity. The current model suggests there is a single lineage of naive T cells that give rise to different populations of effector and memory T cells depending on the type and amounts of stimulation they encounter during infection. Here, we have discovered t  ...[more]

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