Zfp281 is essential for mouse epiblast maturation through transcriptional and epigenetic control of Nodal signaling
- Icahn School of Medicine at Mount Sinai, United States
- Memorial Sloan Kettering Cancer Center, United States
Abstract
Pluripotency is defined by a cell's potential to differentiate into any somatic cell type. How pluripotency is transited during implantation, followed by lineage specification and establishment of the basic body plan is poorly understood. Here we report the transcription factor Zfp281 functions in the exit from naive pluripotency occurring coincident with pre-to-post-implantation mouse embryonic development. By characterizing Zfp281 mutant phenotypes and identifying Zfp281 gene targets and protein partners in developing embryos and cultured pluripotent stem cells, we establish critical roles for Zfp281 in activating components of the Nodal signaling pathway and lineage-specific genes. Mechanistically, Zfp281 cooperates with histone acetylation and methylation complexes at target gene enhancers and promoters to exert transcriptional activation and repression, as well as epigenetic control of epiblast maturation leading up to anterior-posterior axis specification. Our study provides a comprehensive molecular model for understanding pluripotent state progression in vivo during mammalian embryonic development.
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Article and author information
Author details
Anna-Katerina Hadjantonakis
Funding
National Institutes of Health (R01-GM095942)
- Jianlong Wang
National Institutes of Health (R21-HD087722)
- Jianlong Wang
New York State Department of Health (C028103)
- Jianlong Wang
New York State Department of Health (C028121)
- Jianlong Wang
National Institutes of Health (R01-DK084391)
- Anna-Katerina Hadjantonakis
National Institutes of Health (P30-CA008748)
- Anna-Katerina Hadjantonakis
New York State Department of Health (C029568)
- Anna-Katerina Hadjantonakis
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Ethics
Animal experimentation: All mice used in this study were maintained in accordance with the guidelines of the Memorial Sloan Kettering Cancer Center (MSKCC) Institutional Animal Care and Use Committee (IACUC) under protocol number 03-12-017 (PI Hadjantonakis).
Reviewing Editor
- Marianne Bronner, California Institute of Technology, United States
Publication history
- Received: November 6, 2017
- Accepted: November 17, 2017
- Accepted Manuscript published: November 23, 2017 (version 1)
- Version of Record published: November 30, 2017 (version 2)
Copyright
© 2017, Huang et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
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Zfp281 is essential for mouse epiblast maturation through transcriptional and epigenetic control of Nodal signaling
eLife 6:e33333.
https://doi.org/10.7554/eLife.33333
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Reprogramming of the cochlea with hair-cell-specific transcription factors such as ATOH1 has been proposed as a potential therapeutic strategy for hearing loss. ATOH1 expression in the developing cochlea can efficiently induce hair cell regeneration but the efficiency of hair cell reprogramming declines rapidly as the cochlea matures. We developed Cre-inducible mice to compare hair cell reprogramming with ATOH1 alone or in combination with two other hair cell transcription factors, GFI1 and POU4F3. In newborn mice, all transcription factor combinations tested produced large numbers of cells with the morphology of hair cells and rudimentary mechanotransduction properties. However, 1 week later, only a combination of ATOH1, GFI1 and POU4F3 could reprogram non-sensory cells of the cochlea to a hair cell fate, and these new cells were less mature than cells generated by reprogramming 1 week earlier. We used scRNA-seq and combined scRNA-seq and ATAC-seq to suggest at least two impediments to hair cell reprogramming in older animals. First, hair cell gene loci become less epigenetically accessible in non-sensory cells of the cochlea with increasing age. Second, signaling from hair cells to supporting cells, including Notch signaling, can prevent reprogramming of many supporting cells to hair cells, even with three hair cell transcription factors. Our results shed light on the molecular barriers that must be overcome to promote hair cell regeneration in the adult cochlea.
