2015
DOI: 10.1242/dev.125211
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The developmental origins of the mammalian ovarian reserve

Abstract: The adult mammalian ovary is devoid of definitive germline stem cells. As such, female reproductive senescence largely results from the depletion of a finite ovarian follicle pool that is produced during embryonic development. Remarkably, the crucial nature and regulation of follicle assembly and survival during embryogenesis is just coming into focus. This developmental pathway involves the coordination of meiotic progression and the breakdown of germ cell cysts into individual oocytes housed within primordia… Show more

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Cited by 137 publications
(101 citation statements)
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References 118 publications
(154 reference statements)
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“…The number of female germ cells, which comprises the “ovarian reserve”, reaches its peak during gestation and continues to decline during the reproductive lifespan of female mammals [105, 106]. It is now established that the ovarian reserve is established during gestation through a complex interplay between homeobox transcriptional factors, hormones, and genetic determinants, a process that can be disrupted by environmental factors through multiple mechanisms (reviewed by [105]). Some toxicants exert their action through induction of apoptosis during the breakdown of the germ cell nest, a critical step for establishing primordial follicles.…”
Section: Developmental Origins Of Adult Reproductive Dysfunction Amentioning
confidence: 99%
“…The number of female germ cells, which comprises the “ovarian reserve”, reaches its peak during gestation and continues to decline during the reproductive lifespan of female mammals [105, 106]. It is now established that the ovarian reserve is established during gestation through a complex interplay between homeobox transcriptional factors, hormones, and genetic determinants, a process that can be disrupted by environmental factors through multiple mechanisms (reviewed by [105]). Some toxicants exert their action through induction of apoptosis during the breakdown of the germ cell nest, a critical step for establishing primordial follicles.…”
Section: Developmental Origins Of Adult Reproductive Dysfunction Amentioning
confidence: 99%
“…Meiosis in female mammals begins in the developing ovaries during the embryonic/fetal period arresting at the end of prophase I around or just after birth (De Felici, 2016). In mice, female PGCs colonize the gonadal ridges from E10.5 to E12.5 and after some rounds of mitotic division begin to enter meiosis between E13.5 and E14.5 (Grive & Freiman, 2015, Wang et al, 2017). During the mitosis-meiosis transition, germ cells undergo extensive changes in gene expression as they progress through the leptotene, zygotene, pachytene and diplotene stages until arresting at the dictyate stage of meiosis prophase I (Wang et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…Meiotic cells were arrested in the diplotene stage of prophase I during germ cell cyst breakdown accompanied by reduction in cell numbers. Cyst breakdown is associated with the individualization of germ cells to form primordial oocytes, around 16 weeks of pregnancy in humans and at the time of birth in mice (Grive & Freiman 2015). Then, oocyte meiosis arrests in the dictyate stage of prophase I.…”
Section: Introductionmentioning
confidence: 99%