Evidence map›Paper›PMID 25079557›Full record

ArticleNature2014

The DNA methylation landscape of human early embryos.

Hongshan Guo, Ping Zhu, Liying Yan, Rong Li, Boqiang Hu, Ying Lian, Jie Yan, Xiulian Ren, Shengli Lin, Junsheng Li and 15 more

Abstract read
PubMed Publisher
In one paragraph

Article in Nature, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 508 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
508citing papers in PubMed, 1 pooled it
39.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

508 citing papers in PubMed, 1 synthesis or guideline pooled it, 921 citations in OpenAlex.

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  16. Observational
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448 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

25 authors at 4 institutions in 2 countries.

Hongshan Guo1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2].
Ping Zhu1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China [3].
Liying Yan1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China [3].
Rong Li1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China [3].
Boqiang HuBiodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China.
Ying Lian1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Jie Yan1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Xiulian Ren1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Shengli Lin1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Junsheng Li1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Xiaohu Jin1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Xiaodan Shi1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Ping Liu1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Xiaoye WangDepartment of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China.
Wei WangDepartment of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China.
Yuan WeiDepartment of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China.
Xianlong LiBiodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China.
Fan GuoBiodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China.
Xinglong WuBiodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China.
Xiaoying FanBiodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China.
Jun Yong1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
Lu WenBiodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China.
Sunney X Xie1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.
Fuchou Tang1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing 100871, China.
Jie Qiao1] Biodynamic Optical Imaging Center &Center for Reproductive Medicine, College of Life Sciences, Third Hospital, Peking University, Beijing 100871, China [2] Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China.
Peking University · CNPeking University Third Hospital · CNHarvard University · USMinistry of Education of the People's Republic of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

DNA methylation is a crucial element in the epigenetic regulation of mammalian embryonic development. However, its dynamic patterns have not been analysed at the genome scale in human pre-implantation embryos due to technical difficulties and the scarcity of required materials. Here we systematically profile the methylome of human early embryos from the zygotic stage through to post-implantation by reduced representation bisulphite sequencing and whole-genome bisulphite sequencing. We show that the major wave of genome-wide demethylation is complete at the 2-cell stage, contrary to previous observations in mice. Moreover, the demethylation of the paternal genome is much faster than that of the maternal genome, and by the end of the zygotic stage the genome-wide methylation level in male pronuclei is already lower than that in female pronuclei. The inverse correlation between promoter methylation and gene expression gradually strengthens during early embryonic development, reaching its peak at the post-implantation stage. Furthermore, we show that active genes, with the trimethylation of histone H3 at lysine 4 (H3K4me3) mark at the promoter regions in pluripotent human embryonic stem cells, are essentially devoid of DNA methylation in both mature gametes and throughout pre-implantation development. Finally, we also show that long interspersed nuclear elements or short interspersed nuclear elements that are evolutionarily young are demethylated to a milder extent compared to older elements in the same family and have higher abundance of transcripts, indicating that early embryos tend to retain higher residual methylation at the evolutionarily younger and more active transposable elements. Our work provides insights into the critical features of the methylome of human early embryos, as well as its functional relation to the regulation of gene expression and the repression of transposable elements.

Indexed as

DNA MethylationEpigenesis, GeneticGene Expression Regulation, DevelopmentalAnimalsDNA Transposable ElementsEmbryo, MammalianEmbryonic Stem CellsFemaleGene Expression ProfilingGerm CellsHistonesHumansLong Interspersed Nucleotide ElementsMaleMicePromoter Regions, GeneticDNA Transposable ElementsHistones

Identifiers

PMID25079557
OpenAlexW1981197560

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.