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2016 ; 16
(2
): 90-101
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Regulatory T cell memory
#MMPMID26688349
Rosenblum MD
; Way SS
; Abbas AK
Nat Rev Immunol
2016[Feb]; 16
(2
): 90-101
PMID26688349
show ga
Memory for antigen is a defining feature of adaptive immunity. Antigen-specific
lymphocyte populations show an increase in number and function after antigen
encounter and more rapidly re-expand upon subsequent antigen exposure. Studies of
immune memory have primarily focused on effector B cells and T cells with
microbial specificity, using prime-challenge models of infection. However, recent
work has also identified persistently expanded populations of antigen-specific
regulatory T cells that protect against aberrant immune responses. In this
Review, we consider the parallels between memory effector T cells and memory
regulatory T cells, along with the functional implications of regulatory memory
in autoimmunity, antimicrobial host defence and maternal-fetal tolerance. In
addition, we discuss emerging evidence for regulatory T cell memory in humans and
key unanswered questions in this rapidly evolving field.