Аннотация:Mechanisms of meiotic prophase I arrest maintenance (germinal vesicle [GV] stage) and meiotic resumption (germinal vesicle
breakdown [GVBD] stage) in mammalian oocytes seem to be very complicated. These processes are regulated via multiple
molecular cascades at transcriptional, translational, and posttranslational levels, and many of them are interrelated. There are
many molecular cascades of meiosis maintaining and meiotic resumption in oocyte which are orchestrated by multiple molecules
produced by pituitary gland and follicular cells. Furthermore, many of these molecular cascades are duplicated, thus ensuring the
stability of the entire system. Understanding mechanisms of oocyte maturation is essential to assess the oocyte status, develop
effective protocols of oocyte in vitro maturation, and design novel contraceptive drugs. Mechanisms of meiotic arrest maintenance
at prophase I and meiotic resumption in mammalian oocytes are covered in the present article.