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Related Experiment Videos

Keeping Time in a Relay Race for Fat.

Katya Frazier1, Vanessa Leone1

  • 1Department of Medicine, University of Chicago, Chicago, IL 60637, USA.

Cell Host & Microbe
|October 13, 2017
PubMed
Summary

Gut microbes regulate host metabolism by influencing circadian rhythms. Specific microbial components interacting with immune cells tune epithelial circadian oscillations, impacting lipid metabolism.

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Area of Science:

  • Microbiology
  • Metabolism
  • Chronobiology

Background:

  • Gut microbes significantly influence host metabolism through various mechanisms.
  • The precise ways microbes affect host circadian networks are not fully understood.

Purpose of the Study:

  • To elucidate the mechanisms by which gut microbes influence host circadian rhythm regulation.
  • To understand the role of microbial components in modulating host lipid metabolism.

Main Methods:

  • Investigated the crosstalk between microbial components and innate immune cells.
  • Examined the role of Nfil3 in epithelial circadian oscillations.

Main Results:

  • Specific microbial components engage with innate immune cells.
  • This interaction tunes epithelial circadian oscillations via the Nfil3 pathway.
  • Modulation of Nfil3 impacts lipid uptake and host metabolism.

Conclusions:

  • Gut microbial components can directly influence host circadian rhythms.
  • The Nfil3 pathway is a key mediator in microbial regulation of host metabolism.
  • Understanding this crosstalk offers insights into metabolic disease.

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