KDM4A regulates the maternal-to-zygotic transition by protecting broad H3K4me3 domains from H3K9me3 invasion in oocytes Research Letter
| Authors: | Sankar, A.; Lerdrup, M.; Manaf, A.; Johansen, J. V.; Gonzalez, J. M.; Borup, R.; Blanshard, R.; Klungland, A.; Hansen, K.; Andersen, C. Y.; Dahl, J. A.; Helin, K.; Hoffmann, E. R. |
| Title: | KDM4A regulates the maternal-to-zygotic transition by protecting broad H3K4me3 domains from H3K9me3 invasion in oocytes |
| Abstract: | The importance of germline-inherited post-translational histone modifications on priming early mammalian development is just emerging1–4. Histone H3 lysine 9 (H3K9) trimethylation is associated with heterochromatin and gene repression during cell-fate change5, whereas histone H3 lysine 4 (H3K4) trimethylation marks active gene promoters6. Mature oocytes are transcriptionally quiescent and possess remarkably broad domains of H3K4me3 (bdH3K4me3)1,2. It is unknown which factors contribute to the maintenance of the bdH3K4me3 landscape. Lysine-specific demethylase 4A (KDM4A) demethylates H3K9me3 at promoters marked by H3K4me3 in actively transcribing somatic cells7. Here, we report that KDM4A-mediated H3K9me3 demethylation at bdH3K4me3 in oocytes is crucial for normal pre-implantation development and zygotic genome activation after fertilization. The loss of KDM4A in oocytes causes aberrant H3K9me3 spreading over bdH3K4me3, resulting in insufficient transcriptional activation of genes, endogenous retroviral elements and chimeric transcripts initiated from long terminal repeats during zygotic genome activation. The catalytic activity of KDM4A is essential for normal epigenetic reprogramming and pre-implantation development. Hence, KDM4A plays a crucial role in preserving the maternal epigenome integrity required for proper zygotic genome activation and transfer of developmental control to the embryo. © 2020, The Author(s), under exclusive licence to Springer Nature Limited. |
| Keywords: | controlled study; unclassified drug; human cell; nonhuman; protein domain; animal cell; mouse; oocyte; embryo; transcription initiation; embryo development; enzyme activity; chimera; gene activation; infant; epigenetics; histone h3; genome; lysine; preimplantation embryo; nuclear reprogramming; long terminal repeat; in vitro fertilization; histone demethylase; endogenous retrovirus; epigenome; histone demethylation; human; male; female; priority journal; article; histone h3 lysine 9; lysine demethylase 4a; maternal to zygotic transition |
| Journal Title: | Nature Cell Biology |
| Volume: | 22 |
| Issue: | 4 |
| ISSN: | 1465-7392 |
| Publisher: | Nature Publishing Group |
| Date Published: | 2020-04-01 |
| Start Page: | 380 |
| End Page: | 388 |
| Language: | English |
| DOI: | 10.1038/s41556-020-0494-z |
| PUBMED: | 32231309 |
| PROVIDER: | scopus |
| PMCID: | PMC7212036 |
| DOI/URL: | |
| Notes: | Article -- Export Date: 1 May 2020 -- Source: Scopus |
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