Login / Signup

The circadian clock and metabolic homeostasis: entangled networks.

Leonardo Vinícius Monteiro de AssisHenrik Oster
Published in: Cellular and molecular life sciences : CMLS (2021)
The circadian clock exerts an important role in systemic homeostasis as it acts a keeper of time for the organism. The synchrony between the daily challenges imposed by the environment needs to be aligned with biological processes and with the internal circadian clock. In this review, it is provided an in-depth view of the molecular functioning of the circadian molecular clock, how this system is organized, and how central and peripheral clocks communicate with each other. In this sense, we provide an overview of the neuro-hormonal factors controlled by the central clock and how they affect peripheral tissues. We also evaluate signals released by peripheral organs and their effects in the central clock and other brain areas. Additionally, we evaluate a possible communication between peripheral tissues as a novel layer of circadian organization by reviewing recent studies in the literature. In the last section, we analyze how the circadian clock can modulate intracellular and tissue-dependent processes of metabolic organs. Taken altogether, the goal of this review is to provide a systemic and integrative view of the molecular clock function and organization with an emphasis in metabolic tissues.
Keyphrases
  • chemotherapy induced
  • gene expression
  • systematic review
  • single molecule
  • physical activity
  • multiple sclerosis
  • optical coherence tomography
  • blood brain barrier
  • case control
  • drug induced
  • cerebral ischemia