Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (5): 1016-1027.DOI: 10.3969/j.issn.1004-1524.2023.05.05

• Animal Science • Previous Articles     Next Articles

Cloning of CDS region of bovine FoxO1 gene and analysing expression pattern during adipocyte differentiation

SONG Yaping1(), LEI Zhaoxiong1, ZHAO Yi’ang1, JIANG Chao1, WANG Xingping1,2, LUORENG Zhuoma1,2, MA Yun1,2, WEI Dawei1,2,*()   

  1. 1. School of Agriculture, Ningxia University, Yinchuan 750021, China
    2. Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia University, Yinchuan 750021, China
  • Received:2022-01-06 Online:2023-05-25 Published:2023-06-01

Abstract:

The aim of this study was to clone the coding region of bovine Forkhead box O1 (FoxO1) gene and explore its expression pattern during bovine adipocyte differentiation stages. Polymerase chain reaction (PCR) and bioinformatics analysis were used to amplify the CDS sequence of bovine FoxO1 gene and predict the physicochemical properties and functions of bovine FoxO1 respectively. Additionally, the expression patterns of FoxO1 and adipocyte-specific genes (PPARγ, C/EBPα, C/EBPβ, FABP4 and LPL) were measured during bovine adipocyte differentiation stages by qPCR. The results showed that the CDS region of FoxO1 was 1 998 bp in length and encoded 665 amino acids. Its molecular formula was C3016H4711N871O979S35, theoretical isoelectric point was 6.38. It was predicted that FoxO1 interacted closely with adipose growth and development regulatory proteins AKT1, AKT2, AKT3, SIRT1, PRKACA, CDK2 and MAPK8. Phylogenetic tree results showed that bovine FoxO1 was evolutionarily conserved and had the highest homology with closely related sheep and goat species. Temporal expression of FoxO1 in bovine adipocyte differentiation stages showed that the relative expression level reached a peak on day 6 compared with day 0 of differentiation (P<0.01) and was subsequently down-regulated. Both PPARγ and C/EBPβ had higher expression on day 0, and the levels of them on day 4 and 6 were significantly higher than those on day 0(P<0.01). The expression level of C/EBPα on day 2, 4, 6, 10 of differentiation was significantly higher than that on day 0 (P<0.01). However, FABP4 it was lower at on day 0 and 2 of differentiation, and increased to the peak on day 4 of differentiation (P<0.01), then decreased gradually (P<0.05). It increased with the progress of differentiation on LPL and peaked on day 10 (P<0.01). These data will provide the reference information for further exploration of the molecular mechanism of bovine FoxO1.

Key words: bovine, FoxO1, bioinformatics analysis, adipocyte differentiation

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