Lineage-specific reorganization of nuclear peripheral heterochromatin and H3K9Me2 domains

17Citations
Citations of this article
48Readers
Mendeley users who have this article in their library.

Abstract

Dynamic organization of chromatin within the three-dimensional nuclear space has been postulated to regulate gene expression and cell fate. Here, we define the genome-wide distribution of nuclear peripheral heterochromatin as a multipotent P19 cell adopts either a neural or a cardiac fate. We demonstrate that H3K9me2-marked nuclear peripheral heterochromatin undergoes lineage-specific reorganization during cell-fate determination. This is associated with spatial repositioning of genomic loci away from the nuclear periphery as shown by 3D immuno-FISH. Locus repositioning is not always associated with transcriptional changes, but a subset of genes is upregulated. Mef2c is specifically repositioned away from the nuclear periphery during early neurogenic differentiation, but not during early cardiogenic differentiation, with associated transcript upregulation. Myocd is specifically repositioned during early cardiogenic differentiation, but not during early neurogenic differentiation, and is transcriptionally upregulated at later stages of cardiac differentiation. We provide experimental evidence for lineage-specific regulation of nuclear architecture during cell-fate determination in a mouse cell line.

Cite

CITATION STYLE

APA

See, K., Lan, Y., Rhoades, J., Jain, R., Smith, C. L., & Epstein, J. A. (2019). Lineage-specific reorganization of nuclear peripheral heterochromatin and H3K9Me2 domains. Development (Cambridge), 146(3). https://doi.org/10.1242/dev.174078

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free