» Articles » PMID: 22593555

Dynamics of Enhancer Chromatin Signatures Mark the Transition from Pluripotency to Cell Specification During Embryogenesis

Overview
Journal Genome Res
Specialty Genetics
Date 2012 May 18
PMID 22593555
Citations 133
Authors
Affiliations
Soon will be listed here.
Abstract

The generation of distinctive cell types that form different tissues and organs requires precise, temporal and spatial control of gene expression. This depends on specific cis-regulatory elements distributed in the noncoding DNA surrounding their target genes. Studies performed on mammalian embryonic stem cells and Drosophila embryos suggest that active enhancers form part of a defined chromatin landscape marked by histone H3 lysine 4 mono-methylation (H3K4me1) and histone H3 lysine 27 acetylation (H3K27ac). Nevertheless, little is known about the dynamics and the potential roles of these marks during vertebrate embryogenesis. Here, we provide genomic maps of H3K4me1/me3 and H3K27ac at four developmental time-points of zebrafish embryogenesis and analyze embryonic enhancer activity. We find that (1) changes in H3K27ac enrichment at enhancers accompany the shift from pluripotency to tissue-specific gene expression, (2) in early embryos, the peaks of H3K27ac enrichment are bound by pluripotent factors such as Nanog, and (3) the degree of evolutionary conservation is higher for enhancers that become marked by H3K27ac at the end of gastrulation, suggesting their implication in the establishment of the most conserved (phylotypic) transcriptome that is known to occur later at the pharyngula stage.

Citing Articles

Sequence-Only Prediction of Super-Enhancers in Human Cell Lines Using Transformer Models.

Kravchuk E, Ashniev G, Gladkova M, Orlov A, Zaitseva Z, Malkerov J Biology (Basel). 2025; 14(2).

PMID: 40001940 PMC: 11852244. DOI: 10.3390/biology14020172.


Mapping chromatin remodelling in glioblastoma identifies epigenetic regulation of key molecular pathways and novel druggable targets.

Vinel C, Boot J, Jin W, Pomella N, Hadaway A, Mein C BMC Biol. 2025; 23(1):26.

PMID: 39915814 PMC: 11804007. DOI: 10.1186/s12915-025-02127-9.


Inhibition of triglyceride metabolism-associated enhancers alters lipid deposition during adipocyte differentiation.

Zeng S, Li Z, Li X, Du Q, Zhang Y, Zhong Z FASEB J. 2025; 39(2):e70347.

PMID: 39873971 PMC: 11774232. DOI: 10.1096/fj.202401137R.


Hemichordate cis-regulatory genomics and the gene expression dynamics of deuterostomes.

Perez-Posada A, Lin C, Fan T, Lin C, Chen Y, Gomez-Skarmeta J Nat Ecol Evol. 2024; 8(12):2213-2227.

PMID: 39424956 PMC: 11618098. DOI: 10.1038/s41559-024-02562-x.


H3K4me2 distinguishes a distinct class of enhancers during the maternal-to-zygotic transition.

Hurton M, Miller J, Lee M bioRxiv. 2024; .

PMID: 39253505 PMC: 11383010. DOI: 10.1101/2024.08.26.609713.


References
1.
Tang F, Barbacioru C, Bao S, Lee C, Nordman E, Wang X . Tracing the derivation of embryonic stem cells from the inner cell mass by single-cell RNA-Seq analysis. Cell Stem Cell. 2010; 6(5):468-78. PMC: 2954317. DOI: 10.1016/j.stem.2010.03.015. View

2.
Kawakami K . Transgenesis and gene trap methods in zebrafish by using the Tol2 transposable element. Methods Cell Biol. 2004; 77:201-22. DOI: 10.1016/s0091-679x(04)77011-9. View

3.
Creyghton M, Cheng A, Welstead G, Kooistra T, Carey B, Steine E . Histone H3K27ac separates active from poised enhancers and predicts developmental state. Proc Natl Acad Sci U S A. 2010; 107(50):21931-6. PMC: 3003124. DOI: 10.1073/pnas.1016071107. View

4.
Bonn S, Zinzen R, Girardot C, Gustafson E, Perez-Gonzalez A, Delhomme N . Tissue-specific analysis of chromatin state identifies temporal signatures of enhancer activity during embryonic development. Nat Genet. 2012; 44(2):148-56. DOI: 10.1038/ng.1064. View

5.
Blader P, Lam C, Rastegar S, Scardigli R, Nicod J, Simplicio N . Conserved and acquired features of neurogenin1 regulation. Development. 2004; 131(22):5627-37. DOI: 10.1242/dev.01455. View