Critical function of Prdm14 for the establishment of the germ cell lineage in mice.
Specification of germ cell fate is fundamental in development and heredity. Recent evidence indicates that in mice, specification of primordial germ cells (PGCs), the common source of both oocytes and spermatozoa, occurs through the integration of three key events: repression of the somatic program, reacquisition of potential pluripotency and ensuing genome-wide epigenetic reprogramming. Here we provide genetic evidence that Prdm14, a PR domain-containing transcriptional regulator with exclusive expression in the germ cell lineage and pluripotent cell lines, is critical in two of these events, the reacquisition of potential pluripotency and successful epigenetic reprogramming. In Prdm14 mutants, the failure of these two events manifests even in the presence of Prdm1 (also known as Blimp1), a key transcriptional regulator for PGC specification. Our combined evidence demonstrates that Prdm14 defines a previously unknown genetic pathway, initiating independently from Prdm1, for ensuring the launching of the mammalian germ cell lineage.
Yamaji
Masashi
M
Laboratory for Mammalian Germ Cell Biology, Center for Developmental Biology, RIKEN Kobe Institute, 2-2-3 Minatojima-Minamimachi, Chuo-ku, Kobe 650-0047, Japan.
Seki
Yoshiyuki
Y
Kurimoto
Kazuki
K
Yabuta
Yukihiro
Y
Yuasa
Mihoko
M
Shigeta
Mayo
M
Yamanaka
Kaori
K
Ohinata
Yasuhide
Y
Saitou
Mitinori
M
D000818:Animals; D019070:Cell Lineage; D004268:DNA-Binding Proteins; D004622:Embryo, Mammalian / Q000166:cytology / Q000378:metabolism; D005260:Female; D053263:Gene Regulatory Networks; D005854:Germ Cells / Q000166:cytology* / Q000378:metabolism; D008297:Male; D051379:Mice; D016601:RNA-Binding Proteins; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*
D004268:DNA-Binding Proteins; C531066:Prdm14 protein, mouse; D016601:RNA-Binding Proteins; D014157:Transcription Factors