Science advances

Daily rhythms in immune cells influence how memory killer T cells develop

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Abstract

Immunization during the active phase enhances the generation of progenitor-like memory CD8+ T cells.

  • Circadian rhythms influence CD8+ T cell differentiation and antiviral immunity.
  • The timing of antigen encounter affects the fate of CD8+ T cells.
  • Dendritic cell-intrinsic circadian clocks regulate the expression of the costimulatory ligand CD70.
  • The regulation of CD70 expression by circadian clocks directs T cell differentiation.
  • Aligning immune priming with circadian time may optimize T cell immunity.

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