CDC25A phosphatase controls meiosis I progression in mouse oocytes
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چکیده
منابع مشابه
The Meiosis I-to-Meiosis II Transition in Mouse Oocytes Requires Separase Activity
Faithful segregation of homologous chromosomes during the first meiotic division is essential for further embryo development. The question at issue is whether the same mechanisms ensuring correct separation of sister chromatids in mitosis are at work during the first meiotic division. In mitosis, sister chromatids are linked by a cohesin complex holding them together until their disjunction at ...
متن کاملPnma5 is essential to the progression of meiosis in mouse oocytes through a chain of phosphorylation
PNMA (paraneoplastic antigen MA) family includes Pnma1-6. Although other members have been found to be involved in paraneoplastic neurological disorders, death receptor-dependent apoptosis, and tumorigenesis, Pnma5 was thought to be a female fertility factor, as indicated by one genome-wide study. But until now there have not been any further functional studies about Pnma5 in female meiosis. Ou...
متن کاملRegulation of Asymmetrical Cytokinesis by cAMP during Meiosis I in Mouse Oocytes
Mammalian oocytes undergo an asymmetrical first meiotic division, extruding half of their chromosomes in a small polar body to preserve maternal resources for embryonic development. To divide asymmetrically, mammalian oocytes relocate chromosomes from the center of the cell to the cortex, but little is known about the underlying mechanisms. Here, we show that upon the elevation of intracellular...
متن کاملCorrection: Nicotinamide Impairs Entry into and Exit from Meiosis I in Mouse Oocytes
Copyright: © 2015 Riepsamen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
متن کاملNicotinamide Impairs Entry into and Exit from Meiosis I in Mouse Oocytes
Following exit from meiosis I, mammalian oocytes immediately enter meiosis II without an intervening interphase, accompanied by rapid reassembly of a bipolar spindle that maintains condensed chromosomes in a metaphase configuration (metaphase II arrest). Here we study the effect of nicotinamide (NAM), a non-competitive pan-sirtuin inhibitor, during meiotic maturation in mouse oocytes. Sirtuins ...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 2008
ISSN: 0012-1606
DOI: 10.1016/j.ydbio.2008.02.028