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Most microbe-specific naive CD4? T cells produce memory cells during infection.


ABSTRACT: Infection elicits CD4(+) memory T lymphocytes that participate in protective immunity. Although memory cells are the progeny of naïve T cells, it is unclear that all naïve cells from a polyclonal repertoire have memory cell potential. Using a single-cell adoptive transfer and spleen biopsy method, we found that in mice, essentially all microbe-specific naïve cells produced memory cells during infection. Different clonal memory cell populations had different B cell or macrophage helper compositions that matched effector cell populations generated much earlier in the response. Thus, each microbe-specific naïve CD4(+) T cell produces a distinctive ratio of effector cell types early in the immune response that is maintained as some cells in the clonal population become memory cells.

SUBMITTER: Tubo NJ 

PROVIDER: S-EPMC4776317 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature

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