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Scientific article
Open access
English

Circadian organization of lipid landscape is perturbed in type 2 diabetic patients

Published inCell reports. Medicine, vol. 4, no. 12, 101299
Publication date2023-12-19
First online date2023-11-27
Abstract

Lipid homeostasis in humans follows a diurnal pattern in muscle and pancreatic islets, altered upon metabolic dysregulation. We employ tandem and liquid-chromatography mass spectrometry to investigate daily regulation of lipid metabolism in subcutaneous white adipose tissue (SAT) and serum of type 2 diabetic (T2D) and non-diabetic (ND) human volunteers (n = 12). Around 8% of ≈440 lipid metabolites exhibit diurnal rhythmicity in serum and SAT from ND and T2D subjects. The spectrum of rhythmic lipids differs between ND and T2D individuals, with the most substantial changes observed early morning, as confirmed by lipidomics in an independent cohort of ND and T2D subjects (n = 32) conducted at a single morning time point. Strikingly, metabolites identified as daily rhythmic in both serum and SAT from T2D subjects exhibit phase differences. Our study reveals massive temporal and tissue-specific alterations of human lipid homeostasis in T2D, providing essential clues for the development of lipid biomarkers in a temporal manner.

eng
Keywords
  • 1-deoxyceramides
  • DAGs
  • TAGs
  • Glycerophosphopholipids
  • Human circadian system
  • Lipidomics
  • Serum
  • Sphingolipids
  • Subcutaneous white adipose tissue
  • Type 2 diabetes
  • Adipose Tissue, White / metabolism
  • Diabetes Mellitus, Type 2 / metabolism
  • Humans
  • Lipid Metabolism / physiology
  • Lipids
  • Subcutaneous Fat / metabolism
Citation (ISO format)
SINTUREL, Flore et al. Circadian organization of lipid landscape is perturbed in type 2 diabetic patients. In: Cell reports. Medicine, 2023, vol. 4, n° 12, p. 101299. doi: 10.1016/j.xcrm.2023.101299
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ISSN of the journal2666-3791
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