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- W2099404803 abstract "Abstract Generating and maintaining a robust CD8+ T cell response in the face of high viral burden is vital for host survival. Further, balancing the differentiation of effectors along the memory precursor effector cell pathway versus the short-lived effector cell (SLEC) pathway may be critical in controlling the outcome of virus infection with regard to clearance and establishing protection. Although recent studies have identified several factors that have the capacity to regulate effector CD8+ T cell differentiation—for example, inflammatory cytokines—we are far from a complete understanding of how cells choose the memory precursor effector cell versus SLEC fate following infection. In this study, we have modulated the infectious dose of the poxvirus vaccinia virus as an approach to modulate the environment present during activation and expansion of virus-specific effector cells. Surprisingly, in the face of a high virus burden, the number of SLECs was decreased. This decrease was the result of increased natural regulatory T cells (Tregs) generated by high viral burden, as depletion of these cells restored SLECs. Our data suggest Treg modulation of differentiation occurs via competition for IL-2 during the late expansion period, as opposed to the time of T cell priming. These findings support a novel model wherein modulation of the Treg response as a result of high viral burden regulates late-stage SLEC number." @default.
- W2099404803 created "2016-06-24" @default.
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- W2099404803 date "2013-05-15" @default.
- W2099404803 modified "2023-09-27" @default.
- W2099404803 title "High Viral Burden Restricts Short-Lived Effector Cell Number at Late Times Postinfection through Increased Natural Regulatory T Cell Expansion" @default.
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- W2099404803 doi "https://doi.org/10.4049/jimmunol.1200971" @default.
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