Abstract
Metabolic diseases are often characterized by circadian misalignment in different tissues, yet how altered coordination and communication among tissue clocks relate to specific pathogenic mechanisms remains largely unknown. Applying an integrated systems biology approach, we performed 24-hr metabolomics profiling of eight mouse tissues simultaneously. We present a temporal and spatial atlas of circadian metabolism in the context of systemic energy balance and under chronic nutrient stress (high-fat diet [HFD]). Comparative analysis reveals how the repertoires of tissue metabolism are linked and gated to specific temporal windows and how this highly specialized communication and coherence among tissue clocks is rewired by nutrient challenge. Overall, we illustrate how dynamic metabolic relationships can be reconstructed across time and space and how integration of circadian metabolomics data from multiple tissues can improve our understanding of health and disease.
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•Comprehensive atlas of 24-hr metabolism reveals temporal cohesion among tissues•Nutrient stress disrupts circadian metabolites in a tissue-specific manner•Communication and inter-tissue metabolite correlations are rewired by high-fat diet•Multi-tissue metabolite correlations highlight coordinated response to metabolic challenge
Circadian metabolite profiles of eight different tissues under standard and high-fat diet uncover highly specialized communication and coherence among tissue clocks and how this is rewired by nutrient challenge.