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中国农学通报 ›› 2014, Vol. 30 ›› Issue (35): 35-41.doi: 10.11924/j.issn.1000-6850.2014-0786

所属专题: 生物技术 畜牧兽医

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

GDF9与BMP15在绵羊腔前卵泡及卵母细胞体外成熟过程中的差异表达

张帆   

  1. 北京农学院动物科学技术学院
  • 收稿日期:2014-03-21 修回日期:2014-03-21 接受日期:2014-06-17 出版日期:2015-03-18 发布日期:2015-03-18
  • 通讯作者: 张帆
  • 基金资助:
    2013年度北京市教委北京市属高等学校创新团队建设与教师职业发展计划项目“体细胞转基因克隆肉牛新品系培育与利用”(PXM2013_ 014207_000067);2013年度国家自然基金面上项目“牛体内外植入前胚胎IFNτ的差异表达及对子宫上皮细胞ISG15和Wnt7a表达的体外诱导”(31272526);2011年度国家自然基金面上项目“不同来源植入前期绵羊胚胎IFNτ差异表达及其体外诱导子宫上皮细胞Galectin15表达的研究”(31072185)。

The Expressional Differences of Growth Differentiation Factor 9 and Bone Morphogenetic Protein 15 on sheep pre-antral follicles and their oocytes matured in vitro

  • Received:2014-03-21 Revised:2014-03-21 Accepted:2014-06-17 Online:2015-03-18 Published:2015-03-18

摘要: 为了探讨GDF9与BMP15在绵羊腔前卵泡发育及卵母细胞体外成熟过程中的作用,运用腔前卵泡的显微分离方法和RT-PCR技术,检测了GDF9、BMP15 mRNA在绵羊腔前卵泡及卵母细胞体外成熟过程中(0、8、16、24 h)的相对表达丰度。结果表明:绵羊COCs在体外培养的不同时期,卵丘细胞扩展呈现不同的形态学变化;腔前卵泡中GDF9、BMP15 mRNA表达量均低于体外成熟不同时期卵母细胞,且腔前卵泡中GDF9 mRNA表达量显著低于体外成熟不同时期卵母细胞。揭示GDF9和BMP15对卵巢卵泡发育和卵母细胞体外成熟发挥重要作用,在绵羊卵母细胞体外成熟过程中,这2个因子可能是独立或协同地影响卵丘细胞增殖扩散。

关键词: 信息服务, 信息服务

Abstract: The study aimed to investigate the expressional changes of GDF9 and BMP15 on sheep follicle development and their in vitro matured oocytes. The micro-dissected technique was applied to isolate ovine pre-antral follicles. The expression of GDF9 and BMP15 on their pre-antral follicles and oocytes matured in vitro (0, 8, 16 and 24 h) were detected respectively by RT-PCR. The results showed that the cumulus cell expansion presented different alterations in morphology during vitro maturation of sheep COCs. GDF9 and BMP15 mRNA levels detected in pre-antral follicles were lower than those oocytes of different developmental stages as well as in vitro maturation. There were significantly transcriptional differences of GDF9 between preantral follicles and those different developing stages of oocytes, which suggested that GDF9 and BMP15 play an essential role during follicle development and in vitro maturation of sheep oocytes. All of these implied these two factors may independently or collectively affect the granulose cell proliferation and cumulus expansion.