中国畜牧兽医

• 生理生化 • 上一篇    下一篇

油酸和硬脂酸对奶牛乳腺上皮细胞中脂肪酸结合蛋白3表达和脂滴分泌的影响

梁梦瑶,高学军,侯晓明,李庆章   

  1. (东北农业大学乳品科学教育部重点实验室,黑龙江哈尔滨  150030

  • 收稿日期:2013-11-13 出版日期:2014-05-20 发布日期:2014-06-25
  • 通讯作者: 高学军(1969—),男,黑龙江人,博士生导师,从事动物生物化学研究。E-mail: gaoxj5390@sina.com;Tel:0451-55190244
  • 作者简介:梁梦瑶(1989—),女,黑龙江人,硕士生,研究方向:泌乳生物学与乳腺功能调控。
  • 基金资助:

    国家重点基础研究发展(973)计划课题(2011CB100804)。

Effect of Oleic Acid and Stearic Acid on the Expression of Fatty Acid Binding Protein 3 and Secretion of Lipid Droplets in Dairy Cow Mammary Epithelial Cells

LIANG Meng-yao, GAO Xue-jun, HOU Xiao-ming, LI Qing-zhang   

  1. (Key Laboratory of Dairy Science Ministry of Education, Northeast Agricultural University, Harbin 150030, China)

  • Received:2013-11-13 Online:2014-05-20 Published:2014-06-25

摘要: 为确定外源添加长链脂肪酸油酸和硬脂酸对奶牛乳腺上皮细胞中脂肪酸结合蛋白3(FABP3)表达的影响,本试验采用荧光定量RT-PCR检测乳脂合成相关基因的表达情况,确定油酸和硬脂酸的最佳浓度和培养时间分别为75 μmol/L 12 h和100 μmol/L 36 h。采用Western blotting和免疫荧光法检测添加油酸和硬脂酸后FABP3表达和脂滴分泌的情况,为进一步揭示FABP3在乳脂合成信号转导通路中的作用提供理论依据。

关键词:

油酸; 硬脂酸; 乳腺上皮细胞; 脂肪酸结合蛋白3; 脂滴

Abstract: To study the effect of oleic acid and stearic acid on the expression of fatty acid binding protein 3 (FABP3) in dairy cow mammary epithelial cells, qRT-PCR was used to detect the expression of genes related with milk fat synthesis. The optimal concentrations and time of oleic acid and stearic acid were 75 μmol/L 12 h and 100 μmol/L 36 h, respectively. Western blotting and immunofluorescence were used to detect the expression of FABP3 and secretion of lipid droplets. These data provided further experimental evidence for studying the effect of FABP3 on the milk fat synthesis signal transduction pathway.

Key words: oleic acid; stearic acid; dairy cow mammary gland epithelial cells; fatty acid binding protein 3; lipid droplets