›› 2015, Vol. 42 ›› Issue (7): 1823-1829.doi: 10.16431/j.cnki.1671-7236.2015.07.029

• 遗传繁育 • 上一篇    下一篇

miR-142-3p对奶山羊乳腺上皮细胞泌乳功能的影响

王褚悦, 王春梅, 邵丽, 张莉, 林叶, 崔英俊, 高学军, 李庆章   

  1. 东北农业大学乳品科学教育部重点实验室, 哈尔滨 150030
  • 收稿日期:2014-11-27 出版日期:2015-07-20 发布日期:2015-07-23
  • 通讯作者: 李庆章 E-mail:qzli@neau.edu.cn
  • 作者简介:王褚悦(1989-),女,黑龙江哈尔滨人,硕士生,研究方向:泌乳生物学与乳腺功能调控,E-mail:313710932@qq.com
  • 基金资助:
    国家重点基础研究发展(973)计划课题(2011CB100804)

Effect of miR-142-3p on Lactation in Diary Goat Mammary Epithelial Cells

WANG Chu-yue, WANG Chun-mei, SHAO Li, ZHANG Li, LIN Ye, CUI Ying-jun, GAO Xue-jun, LI Qing-zhang   

  1. Key Laboratory of Dairy Science of Education Ministry, Northeast Agricultural University, Harbin 150030, China
  • Received:2014-11-27 Online:2015-07-20 Published:2015-07-23

摘要: 为确定miR-142-3p对奶山羊乳腺上皮细胞泌乳功能的调节作用,试验选取泌乳期奶山羊乳腺上皮细胞为研究材料,利用脂质体转染技术抑制miR-142-3p的表达,采用实时荧光定量PCR、Western blotting、试剂盒等检测miR-142-3p基因沉寂后其对奶山羊乳腺上皮细胞泌乳功能的影响。结果显示,miR-142-3p基因沉寂后,奶山羊乳腺上皮细胞增殖能力增强,β-酪蛋白及甘油三酯分泌增加。由此可知,miR-142-3p通过抑制靶基因作用,影响奶山羊乳腺上皮细胞增殖、分泌β-酪蛋白及甘油三酯等泌乳功能。

关键词: 奶山羊; 乳腺; miR-142-3p; 细胞增殖; 泌乳

Abstract: To determine the regulative role of miR-142-3p in lactation of dairy goat mammary epithelia cells (DGMECs),we selected the DGMECs in lactating dairy goat for material,used liposomal transfection techniques to silence miR-142-3p expression,and used Real-time quantitative PCR,Western blotting and Assay Kits to explore the changes of lactation after miR-142-3p inhibition.The results showed that when miR-142-3p was inhibited,the cell proliferation ability of DGMECs was increased,the secretion amount of β-casein and triglyceride were up-regulated.So we concluded that miR-142-3p could influence the lactation function of DGMECs,such as cell proliferation,β-casein and triglyceride secretion,by inhibiting the function of its target genes.

Key words: diary goat; mammary gland; miR-142-3p; cell proliferation; lactation

中图分类号: