publication . Other literature type . Article . 2008

Nanos2 suppresses meiosis and promotes male germ cell differentiation

Suzuki, A.; Saga, Y.;
Open Access English
  • Published: 15 Feb 2008
  • Publisher: Cold Spring Harbor Laboratory Press
Abstract
In mouse fetal gonads, retinoic acid (RA) induces meiosis in the female germ cells, whereas the male germ cells never enter meiosis due to Cyp26b1-mediated RA metabolism. We show here that Nanos2 plays critical roles in the differentiation of male germ cells. We find that Nanos2 maintains the suppression of meiosis by preventing Stra8 expression, which is required for premeiotic DNA replication, after Cyp26b1 is decreased. We also demonstrate that Nanos2 activates a male-specific genetic program, which is supported by the inhibition of meiosis and the induction of male-type differentiation in female germ cells following the forced expression of Nanos2.
Subjects
Medical Subject Headings: endocrine system
free text keywords: Research Communication, Developmental Biology, Genetics, Tretinoin, medicine.drug, medicine, Germ cell, medicine.anatomical_structure, Retinoic acid, chemistry.chemical_compound, chemistry, Cellular differentiation, Premeiotic DNA replication, Germ line development, Biology, Molecular biology, DNA replication, Meiosis
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