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Synchronization of the Normal Human Peripheral Immune System: A Comprehensive Circadian Systems Immunology Analysis.


ABSTRACT: In this study, we sought to fill an important gap in fundamental immunology research by conducting a comprehensive systems immunology analysis of daily variation in the normal human peripheral immune system. Although variation due to circadian rhythmicity was not a significant source of variation in daily B-cell levels or any CD4+ functional subset, it accounted for more than 25% of CD4+ regulatory T-cell variation and over 50% of CD8+ central memory variation. Circadian rhythmicity demonstrated phase alignment within functional phenotypes. In addition, we observed that previously-described mechanistic relationships can also appear in the peripheral system as phase shifting in rhythmic patterns. We identified a set of immune factors which are ubiquitously correlated with other factors and further analysis also identified a tightly-correlated "core" set whose relational structure persisted after analytically removing circadian-related variation. This core set consisted of CD8+ and its subpopulations and the NK population. In sum, the peripheral immune system can be conceptualized as a dynamic, interconnected wave-field repeating its pattern on a daily basis. Our data provide a comprehensive inventory of synchronization and correlation within this wave-field and we encourage use of our data to discover unknown mechanistic relationships which can then be tested in the laboratory.

SUBMITTER: Beam CA 

PROVIDER: S-EPMC6971086 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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Synchronization of the Normal Human Peripheral Immune System: A Comprehensive Circadian Systems Immunology Analysis.

Beam Craig A CA   Wasserfall Clive C   Woodwyk Alyssa A   Akers McKenzie M   Rauch Heather H   Blok Thomas T   Mason Patrice P   Vos Duncan D   Perry Daniel D   Brusko Todd T   Peakman Mark M   Atkinson Mark M  

Scientific reports 20200120 1


In this study, we sought to fill an important gap in fundamental immunology research by conducting a comprehensive systems immunology analysis of daily variation in the normal human peripheral immune system. Although variation due to circadian rhythmicity was not a significant source of variation in daily B-cell levels or any CD4+ functional subset, it accounted for more than 25% of CD4+ regulatory T-cell variation and over 50% of CD8+ central memory variation. Circadian rhythmicity demonstrated  ...[more]

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