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KMID : 1025520210630040919
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Journal of Animal Science and Technology
2021 Volume.63 No. 4 p.919 ~ p.933
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Effect of palmitoleic acid on the differentiation of bovine skeletal muscle satellite cells
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Zhang Junfang
Li Qiang
Nogoy Kim Margarette Corpuz
Sun Jianfu
Sun Bin
Wang Ying
Tang Lin
Yu Jia
Jin Xin
Li Xiangzi
Choi Seong-Ho
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Abstract
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We hypothesized that the unsaturated fatty acid palmitoleic acid (POA) could promote the expression of adipogenic/lipogenic genes in bovine skeletal muscle satellite cells (BSCs). The BSCs were cultured in a growth medium containing 10% fetal bovine serum. When the cells reached 80%?90% confluence, we used the differentiation medium with 5% horse serum for differentiation for 96 h. The differentiation medium contained 50 μM, 100 μM and 200 μM POA. Control BSC were cultured only in differentiation media. Compared with the control BSC, the POA BSC significantly up-regulated the expression of paired box 3 (Pax3) and paired box 7 (Pax7) and down-regulated myogenin gene expression (p < 0.01), which indicates a depression in muscle fiber development. However, all POA treatments up-regulated the expression of the adipocyte transcription factors peroxisome proliferator-activated receptor γ (PPARγ), CCAAT/enhancer-binding protein alpha and beta (C/EBP α and C/EBP β), and other genes (p < 0.01) and increased the expression of PAT-family proteins and the concentration of adiponectin in the media. These results indicate that POA can convert part of BSCs into adipocytes.
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KEYWORD
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Adipocytes, Palmitoleic acid, Satellite cells, Bovine, Muscle, Marbling
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