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Updated: May 25, 2026

Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation

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Published on: June 21, 2016

Enhancer decommissioning by LSD1 during embryonic stem cell differentiation.

Warren A Whyte¹, Steve Bilodeau, David A Orlando

¹Whitehead Institute for Biomedical Research, Cambridge, Massachusetts 02142, USA.

|February 3, 2012

Summary

Lysine-specific demethylase 1 (LSD1) is crucial for cell differentiation. This histone demethylase, part of the NuRD complex, silences key enhancers, enabling the transition from embryonic stem cell states to specialized cell types.

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Area of Science:

Cellular biology
Epigenetics
Developmental biology

Background:

Transcription factors and chromatin modifiers orchestrate cellular state changes during development.
Enhancer elements are critical for gene regulation, but mechanisms of their silencing during differentiation are unclear.

Purpose of the Study:

To investigate the role of histone demethylase LSD1 in enhancer decommissioning during mouse embryonic stem cell differentiation.
To elucidate the mechanisms by which LSD1 contributes to the silencing of pluripotency-associated enhancers.

Main Methods:

Utilized mouse embryonic stem cells (ESCs) to study differentiation processes.
Investigated the occupancy of LSD1 at active enhancers.
Assessed the impact of LSD1 activity on histone demethylation events and ESC differentiation.
Examined the composition of the complex involving LSD1 at active enhancers.

Main Results:

LSD1 is essential for decommissioning enhancers during ESC differentiation, but not for maintaining ESC identity.
ESCs lacking LSD1 activity exhibit impaired differentiation and fail to demethylate ESC-specific enhancers.
LSD1 functions as part of the NuRD complex at active enhancers, which is necessary for ESC differentiation.

Conclusions:

The LSD1-NuRD complex plays a critical role in decommissioning pluripotency enhancers during differentiation.
This process is essential for the complete shutdown of the ESC gene expression program.
The LSD1-NuRD complex facilitates the transition to new, specialized cell states.