Esrrb function is required for proper primordial germ cell development in presomite stage mouse embryos.

Okamura, Eiichi, Tam, Oliver H, Posfai, Eszter, Li, Lingyu, Cockburn, Katie, Lee, Cheryl QE, Garner, Jodi, Rossant, Janet (November 2019) Esrrb function is required for proper primordial germ cell development in presomite stage mouse embryos. Developmental Biology, 455 (2). pp. 382-392. ISSN 0012-1606

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DOI: 10.1016/j.ydbio.2019.07.008


Estrogen related receptor beta (Esrrb) is an orphan nuclear receptor that is required for self-renewal and pluripotency in mouse embryonic stem (ES) cells. However, in the early post-implantation mouse embryo, Esrrb is specifically expressed in the extraembryonic ectoderm (ExE) and plays a crucial role in trophoblast development. Previous studies showed that Esrrb is also required to maintain trophoblast stem (TS) cells, the in vitro stem cell model of the early trophoblast lineage. In order to identify regulatory targets of Esrrb in vivo, we performed microarray analysis of Esrrb-null versus wild-type post-implantation ExE, and identified 30 genes down-regulated in Esrrb-mutants. Among them is Bmp4, which is produced by the ExE and known to be critical for primordial germ cell (PGC) specification in vivo. We further identified an enhancer region bound by Esrrb at the Bmp4 locus by performing Esrrb ChIP-seq and luciferase reporter assay using TS cells. Finally, we established a knockout mouse line in which the enhancer region was deleted using CRISPR/Cas9 technology. Both Esrrb-null embryos and enhancer knockout embryos expressed lower levels of Bmp4 in the ExE, and had reduced numbers of PGCs. These results suggested that Esrrb functions as an upstream factor of Bmp4 in the ExE, regulating proper PGC development in mice.

Item Type: Paper
Subjects: ?? Animals ??
?? Bone Morphogenetic Protein 4 ??
?? Clustered Regularly Interspaced Short Palindromic Repeats ??
?? Ectoderm ??
?? Embryonic Development ??
?? Enhancer Elements, Genetic ??
?? Germ Cells ??
?? Mice ??
?? Mice, Knockout ??
?? Protein Array Analysis ??
?? Receptors, Estrogen ??
CSHL Authors:
Communities: CSHL labs > Hammell M. lab
SWORD Depositor: CSHL Elements
Depositing User: CSHL Elements
Date: 15 November 2019
Date Deposited: 03 Feb 2021 16:38
Last Modified: 03 Feb 2021 16:38

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