Journal
CELL METABOLISM
Volume 33, Issue 2, Pages -Publisher
CELL PRESS
DOI: 10.1016/j.cmet.2020.12.004
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Funding
- Danish National Research Foundation (DNRF) [141]
- Independent Research Fund Denmark [DFF-7016-00279]
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The study utilized single-nucleus RNA-seq to map the plasticity of mouse epididymal white adipose tissue in response to high-fat-diet-induced obesity, revealing changes in adipocyte subpopulations and increased lipid-handling genes in macrophages with obesity.
Adipose tissues display a remarkable ability to adapt to the dietary status. Here, we have applied single-nucleus RNA-seq to map the plasticity of mouse epididymal white adipose tissue at single-nucleus resolution in response to high-fat-diet-induced obesity. The single-nucleus approach allowed us to recover all major cell types and to reveal distinct transcriptional stages along the entire adipogenic trajectory from preadipocyte commitment to mature adipocytes. We demonstrate the existence of different adipocyte subpopulations and show that obesity leads to disappearance of the lipogenic subpopulation and increased abundance of the stressed lipid-scavenging subpopulation. Moreover, obesity is associated with major changes in the abundance and gene expression of other cell populations, including a dramatic increase in lipid-handling genes in macrophages at the expense of macrophage-specific genes. The data provide a powerful resource for future hypothesis-driven investigations of the mechanisms of adipocyte differentiation and adipose tissue plasticity.
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