Transient Chemical-mediated Epigenetic Modulation Confers Unrestricted Lineage Potential on Human Primed Pluripotent Stem Cells

Overview

Journal Sci China Life Sci

Date 2025 Jan 17

PMID 39825205

Authors

Shi Chen

Yuanyuan He

Lejun Lv

Bei Liu

Cheng Li

Hongkui Deng

Jun Xu

Affiliations

Soon will be listed here.

Abstract

Human primed pluripotent stem cells are capable of generating all the embryonic lineages. However, their extraembryonic trophectoderm potentials are limited. It remains unclear how to expand their developmental potential to trophectoderm lineages. Here we show that transient treatment with a cocktail of small molecule epigenetic modulators imparts trophectoderm lineage potentials to human primed pluripotent stem cells while preserving their embryonic potential. These chemically treated cells can generate trophectoderm-like cells and downstream trophoblast stem cells, diverging into syncytiotrophoblast and extravillous trophoblast lineages. Transcriptomic and CUT&Tag analyses reveal that these induced cells share transcriptional profiles with in vivo trophectoderm and cytotrophoblast, and exhibit reduced H3K27me3 modification at gene loci specific to trophoblast lineages compared with primed pluripotent cells. Mechanistic exploration highlighted the critical roles of epigenetic modulators HDAC2, EZH1/2, and KDM5s in the activation of trophoblast lineage potential. Our findings demonstrate that transient epigenetic resetting activates unrestricted lineage potential in human primed pluripotent stem cells, and offer new mechanistic insights into human trophoblast lineage specification and in vitro models for studying placental development and related disorders.

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