Animals (May 2021)

Dynamic Expression Profiles of Circular RNAs during Brown to White Adipose Tissue Transformation in Goats (<i>Capra hircus</i>)

  • Xujia Zhang,
  • Siyuan Zhan,
  • Shizhong Yang,
  • Tao Zhong,
  • Jiazhong Guo,
  • Jiaxue Cao,
  • Yan Wang,
  • Li Li,
  • Hongping Zhang,
  • Linjie Wang

DOI
https://doi.org/10.3390/ani11051351
Journal volume & issue
Vol. 11, no. 5
p. 1351

Abstract

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Adipose tissues are mainly divided into brown adipose tissue (BAT) and white adipose tissue (WAT). WAT mainly functions to buffer excess calories, whereas BAT plays a role in the non-shivering thermogenesis to maintain body temperature and energy balance. Moreover, circRNAs play important roles in various biological processes. However, knowledge of the expression profile and function of circRNAs from BAT to WAT remains largely unknown. In this study, a total of 6610 unique circRNAs were identified in the perirenal adipose tissues of 1-day, 30-days, and 1-year goats. Functional annotation revealed that host genes of circRNAs were involved in some BAT-related pathways, such as the thyroid hormone signaling pathway, MAPK signaling pathway, and VEGF signaling pathway. Furthermore, a total of 61 DEcircRNAs were detected across three stages. Additionally, five selected circRNAs were validated by RNase R assay, qPCR, and Sanger sequencing. Finally, the circRNA–miRNA network was constructed between the DEcircRNAs and their miRNA binding sites.

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