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卵丘细胞影响猪卵母细胞中细胞骨架和细胞器的分布及功能。

Cumulus cells affect distribution and function of the cytoskeleton and organelles in porcine oocytes.

作者信息

Suzuki Hiroyuki, Saito Yosuke

机构信息

Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan.

出版信息

Reprod Med Biol. 2006 Aug 9;5(3):183-194. doi: 10.1111/j.1447-0578.2006.00140.x. eCollection 2006 Sep.

Abstract

Mammalian oocytes grow and undergo meiosis within ovarian follicles. Oocytes are arrested at the first meiotic prophase, being controlled or influenced by follicular somatic cells. Under the influence of gonadotropins, immature oocytes resume meiosis. During meiotic progression, some cytoplasmic changes occur, so-called cytoplasmic maturation. However, porcine follicular oocytes vary greatly in developmental competence. The present review summarizes recent studies highlighting the importance of cumulus cells in maintaining the developmental ability and in reorganizing the cytoskeleton and organelles of porcine oocytes. Factors affecting wide variation of the nuclear and cytoplasmic maturation observed in the porcine oocytes are discussed. (Reprod Med Biol 2006; : 183-194).

摘要

哺乳动物的卵母细胞在卵巢卵泡内生长并进行减数分裂。卵母细胞停滞于第一次减数分裂前期,受卵泡体细胞的控制或影响。在促性腺激素的影响下,未成熟卵母细胞恢复减数分裂。在减数分裂过程中,会发生一些细胞质变化,即所谓的细胞质成熟。然而,猪卵泡卵母细胞的发育能力差异很大。本综述总结了近期的研究,强调了卵丘细胞在维持猪卵母细胞发育能力以及重组其细胞骨架和细胞器方面的重要性。还讨论了影响猪卵母细胞中观察到的核成熟和细胞质成熟广泛差异的因素。(《生殖医学与生物学》2006年;:183 - 194)

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