Nature Communications (Jun 2023)

Dynamic chromatin architecture of the porcine adipose tissues with weight gain and loss

  • Long Jin,
  • Danyang Wang,
  • Jiaman Zhang,
  • Pengliang Liu,
  • Yujie Wang,
  • Yu Lin,
  • Can Liu,
  • Ziyin Han,
  • Keren Long,
  • Diyan Li,
  • Yu Jiang,
  • Guisen Li,
  • Yu Zhang,
  • Jingyi Bai,
  • Xiaokai Li,
  • Jing Li,
  • Lu Lu,
  • Fanli Kong,
  • Xun Wang,
  • Hua Li,
  • Zhiqing Huang,
  • Jideng Ma,
  • Xiaolan Fan,
  • Linyuan Shen,
  • Li Zhu,
  • Yanzhi Jiang,
  • Guoqing Tang,
  • Bin Feng,
  • Bo Zeng,
  • Liangpeng Ge,
  • Xuewei Li,
  • Qianzi Tang,
  • Zhihua Zhang,
  • Mingzhou Li

DOI
https://doi.org/10.1038/s41467-023-39191-0
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 19

Abstract

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Abstract Using an adult female miniature pig model with diet-induced weight gain/weight loss, we investigated the regulatory mechanisms of three-dimensional (3D) genome architecture in adipose tissues (ATs) associated with obesity. We generated 249 high-resolution in situ Hi-C chromatin contact maps of subcutaneous AT and three visceral ATs, analyzing transcriptomic and chromatin architectural changes under different nutritional treatments. We find that chromatin architecture remodeling underpins transcriptomic divergence in ATs, potentially linked to metabolic risks in obesity development. Analysis of chromatin architecture among subcutaneous ATs of different mammals suggests the presence of transcriptional regulatory divergence that could explain phenotypic, physiological, and functional differences in ATs. Regulatory element conservation analysis in pigs and humans reveals similarities in the regulatory circuitry of genes responsible for the obesity phenotype and identified non-conserved elements in species-specific gene sets that underpin AT specialization. This work provides a data-rich tool for discovering obesity-related regulatory elements in humans and pigs.