The primordial follicle reserve is not renewed after chemical or gamma-irradiation mediated depletion
Details
Publication Year 2012-04, Volume 143, Issue #4, Page 469-476
Journal Title
REPRODUCTION
Publication Type
Journal Article
Abstract
Reports indicate that germ-line stem cells present in adult mice can rapidly generate new oocytes and contribute to the primordial follicle reserve following conditions of ovotoxic stress. We further investigated the hypothesis that adult mice have the capacity to generate new oocytes by monitoring primordial follicle numbers throughout postnatal life and following depletion of the primordial follicle reserve by exposure to doxorubicin (DXR), trichostatin A (TSA), or whole-body gamma-irradiation. We show that primordial follicle number remains stable in adult C57BL/6 mice between the ages of 25 and 100 days. However, within 2 days of treatment with DXR or TSA, primordial follicle numbers had declined to 65 and 51% respectively (P < 0.05-0.01 when compared to untreated controls), with no restoration of follicle numbers evident after 7 days for either treatment. Furthermore, ovaries from mice subjected to sterilizing doses of gamma-irradiation (0.45 or 4.5 Gy) revealed complete ablation of all primordial follicles 5 days after treatment, with no indication of follicular renewal. We conclude that neo-folliculogenesis does not occur following chemical or gamma-irradiation mediated depletion of the primordial follicle reserve. Reproduction (2012) 143 469-476
Publisher
BIOSCIENTIFICA LTD
Keywords
HISTONE DEACETYLASE INHIBITOR; OVARIAN-FOLLICLES; TRICHOSTATIN-A; EGGS FOREVER; BONE-MARROW; MOUSE OVARY; FEMALE RATS; GERM-CELLS; NUMBER; MICE
WEHI Research Division(s)
Molecular Genetics Of Cancer; Stem Cells And Cancer
Rights Notice
© 2012 Society for Reproduction and Fertility


Creation Date: 2012-04-01 12:00:00
Last Modified: 0001-01-01 12:00:00
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