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Updated: Sep 14, 2025

Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark
Published on: January 26, 2018
Epigenome profiling identifies H3K27me3 regulation of extracellular matrix composition in human corticogenesis
Nora Ditzer1, Ezgi Senoglu1, Annika Kolodziejczyk1
1Center for Regenerative Therapies TU Dresden, TUD Dresden University of Technology, 01307 Dresden, Germany.
Abstract:
Epigenetic mechanisms regulate gene expression programs during neurogenesis, but the extent of epigenetic remodeling during human cortical development remains unknown. Here, we characterize the epigenetic landscape of the human developing neocortex by leveraging Epi-CyTOF, a mass-cytometry-based approach for the simultaneous single-cell analysis of more than 30 epigenetic marks. We identify Polycomb repressive complex 2 (PRC2)-mediated H3K27me3 as the modification with the strongest cell-type-specific enrichment. Inhibition of PRC2 in human cortical organoids resulted in a shift of neural progenitor cell (NPC) proliferation toward differentiation. Cell-type-specific profiling of H3K27me3 identified neuronal differentiation and extracellular matrix (ECM) genes in the human neocortex. PRC2 inhibition resulted in increased production of the ECM proteins Syndecan 1 and laminin alpha 1. Overall, this study comprehensively characterizes the epigenetic state of specific neural cell types and highlights a novel role for H3K27me3 in regulating the ECM composition in the human developing neocortex.
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