Characterization of Metabolic Patterns in Mouse Oocytes during Meiotic Maturation.

Characterization of Metabolic Patterns in Mouse Oocytes during Meiotic Maturation.
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减数分裂成熟过程中小鼠卵母细胞代谢模式的表征

DOI:
10.1016/j.molcel.2020.09.022
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发表时间:
2020-11-05
期刊:
影响因子:
16
通讯作者:
Wang Q
Wang Q
中科院分区:
生物学1区
文献类型:
--
作者:
Li L;Zhu S;Shu W;Guo Y;Guan Y;Zeng J;Wang H;Han L;Zhang J;Liu X;Li C;Hou X;Gao M;Ge J;Ren C;Zhang H;Schedl T;Guo X;Chen M;Wang Q

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良好的平衡和适时的新陈代谢是制作高质量鸡蛋的关键。然而,支持卵母细胞发育的代谢框架仍然知之甚少。在这里,我们通过分离关键时期的大量细胞,获得了小鼠卵母细胞在体内成熟过程中的时间代谢组谱。同时,定量蛋白质组学分析被用来支持代谢组学数据,协同地描绘了卵母细胞中的全球代谢模式。特别是,我们发现了减数分裂成熟过程中的代谢特征,如多不饱和脂肪酸(PUFAs)水平的下降和活跃的丝氨酸-甘氨酸-一碳(SGOC)途径。利用功能学方法,我们进一步确定了介导多不饱和脂肪酸花生四烯酸(ARA)在减数分裂成熟过程中作用的关键靶点,并展示了SGOC网络对成熟卵母细胞表观遗传标记的调控。我们的数据为卵母细胞成熟过程中代谢组和蛋白质组的动态变化提供了广泛的信息来源。
Well balanced and timed metabolism is essential for making a high quality egg. However, the metabolic framework that supports oocyte development remains poorly understood. Here we obtained the temporal metabolome profiles of mouse oocytes during in vivo maturation by isolating large number of cells at key stages. In parallel, quantitative proteomic analyses were conducted to bolster the metabolomic data, synergistically depicting the global metabolic patterns in oocytes. In particular, we discovered the metabolic features during meiotic maturation, such as the fall in polyunsaturated fatty acids (PUFAs) level and the active serine-glycine-one-carbon (SGOC) pathway. Using functional approaches, we further identified the key targets mediating the action of PUFA arachidonic acid (ARA) on meiotic maturation, and demonstrated the control of epigenetic marks in maturing oocytes by SGOC network. Our data serves as a broad resource on the dynamics occurring in metabolome and proteome during oocyte maturation.
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